{"id":131638,"date":"2026-10-23T16:44:02","date_gmt":"2026-10-23T09:44:02","guid":{"rendered":"https:\/\/tino.vn\/blog\/?p=131638"},"modified":"2026-10-23T16:45:08","modified_gmt":"2026-10-23T09:45:08","slug":"giam-sat-vps","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/giam-sat-vps\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn gi\u00e1m s\u00e1t VPS c\u01a1 b\u1ea3n cho ng\u01b0\u1eddi m\u1edbi A-Z"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ec3 gi\u00e1m s\u00e1t VPS, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u00e0o m\u00e1y ch\u1ee7 qua SSH v\u00e0 s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh Linux nh\u01b0 <code>top<\/code>, <code>free -h<\/code>, <code>df -h<\/code> v\u00e0 <code>uptime<\/code> \u0111\u1ec3 ki\u1ec3m tra CPU, RAM, \u1ed5 \u0111\u0129a c\u0169ng nh\u01b0 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. N\u1ebfu mu\u1ed1n theo d\u00f5i li\u00ean t\u1ee5c v\u00e0 nh\u1eadn c\u1ea3nh b\u00e1o khi c\u00f3 s\u1ef1 c\u1ed1, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u00eam c\u00f4ng c\u1ee5 Netdata. Theo d\u00f5i b\u00e0i vi\u1ebft \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn chi ti\u1ebft nh\u00e9!<\/strong><\/p>\n\n\n\n<h2 id=\"Gi\u00e1m_s\u00e1t_VPS_l\u00e0_g\u00ec?_C\u1ea7n_theo_d\u00f5i_nh\u1eefng_th\u00f4ng_s\u1ed1_n\u00e0o?\"><strong>Gi\u00e1m s\u00e1t VPS l\u00e0 g\u00ec? C\u1ea7n theo d\u00f5i nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0o?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u00e1m s\u00e1t VPS (VPS Monitoring)<\/strong> l\u00e0 qu\u00e1 tr\u00ecnh theo d\u00f5i t\u00e0i nguy\u00ean v\u00e0 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y ch\u1ee7 \u1ea3o nh\u1eb1m ph\u00e1t hi\u1ec7n s\u1edbm nh\u1eefng d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng nh\u01b0 CPU qu\u00e1 t\u1ea3i, RAM c\u1ea1n ki\u1ec7t, \u1ed5 \u0111\u0129a \u0111\u1ea7y ho\u1eb7c d\u1ecbch v\u1ee5 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec ch\u1ec9 ki\u1ec3m tra khi website g\u1eb7p s\u1ef1 c\u1ed1, ng\u01b0\u1eddi qu\u1ea3n tr\u1ecb c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng theo d\u00f5i hi\u1ec7u su\u1ea5t m\u00e1y ch\u1ee7 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n v\u00e0 \u0111\u01b0a ra ph\u01b0\u01a1ng \u00e1n x\u1eed l\u00fd ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi gi\u00e1m s\u00e1t VPS, b\u1ea1n n\u00ean quan t\u00e2m \u0111\u1ebfn nh\u1eefng th\u00f4ng s\u1ed1 sau:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Th\u00f4ng s\u1ed1<\/strong><\/td><td><strong>\u00dd ngh\u0129a<\/strong><\/td><td><strong>V\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n<\/strong><\/td><\/tr><tr><td>CPU Usage<\/td><td>T\u1ef7 l\u1ec7 t\u00e0i nguy\u00ean CPU \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/td><td>VPS x\u1eed l\u00fd ch\u1eadm do CPU qu\u00e1 t\u1ea3i<\/td><\/tr><tr><td>RAM Usage<\/td><td>Dung l\u01b0\u1ee3ng b\u1ed9 nh\u1edb \u0111ang s\u1eed d\u1ee5ng v\u00e0 c\u00f2n kh\u1ea3 d\u1ee5ng<\/td><td>Thi\u1ebfu RAM, \u1ee9ng d\u1ee5ng b\u1ecb d\u1eebng<\/td><\/tr><tr><td>Disk Usage<\/td><td>Dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a \u0111\u00e3 s\u1eed d\u1ee5ng<\/td><td>\u1ed4 \u0111\u0129a \u0111\u1ea7y, kh\u00f4ng th\u1ec3 ghi th\u00eam d\u1eef li\u1ec7u<\/td><\/tr><tr><td>Load Average<\/td><td>M\u1ee9c t\u1ea3i trung b\u00ecnh c\u1ee7a h\u1ec7 th\u1ed1ng trong m\u1ed9t kho\u1ea3ng th\u1eddi gian<\/td><td>Nhi\u1ec1u t\u00e1c v\u1ee5 \u0111ang ch\u1ea1y ho\u1eb7c ch\u1edd x\u1eed l\u00fd<\/td><\/tr><tr><td>Network Traffic<\/td><td>L\u01b0\u1ee3ng d\u1eef li\u1ec7u g\u1eedi v\u00e0 nh\u1eadn qua m\u1ea1ng<\/td><td>L\u01b0u l\u01b0\u1ee3ng t\u0103ng b\u1ea5t th\u01b0\u1eddng, ngh\u1ebdn m\u1ea1ng<\/td><\/tr><tr><td>Process &amp; Service<\/td><td>Tr\u1ea1ng th\u00e1i ti\u1ebfn tr\u00ecnh v\u00e0 d\u1ecbch v\u1ee5<\/td><td>\u1ee8ng d\u1ee5ng ng\u1eebng ch\u1ea1y ho\u1eb7c ti\u00eau th\u1ee5 qu\u00e1 nhi\u1ec1u t\u00e0i nguy\u00ean<\/td><\/tr><tr><td>Uptime &amp; Availability<\/td><td>Th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 kh\u1ea3 n\u0103ng truy c\u1eadp d\u1ecbch v\u1ee5<\/td><td>VPS kh\u1edfi \u0111\u1ed9ng l\u1ea1i, website kh\u00f4ng ph\u1ea3n h\u1ed3i<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3, <strong>CPU, RAM v\u00e0 \u1ed5 \u0111\u0129a l\u00e0 ba nh\u00f3m t\u00e0i nguy\u00ean n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ea7u ti\u00ean<\/strong> khi b\u1ea1n m\u1edbi b\u1eaft \u0111\u1ea7u qu\u1ea3n tr\u1ecb VPS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, c\u1ea7n ph\u00e2n bi\u1ec7t hai kh\u00e1i ni\u1ec7m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gi\u00e1m s\u00e1t t\u00e0i nguy\u00ean VPS:<\/strong> Ki\u1ec3m tra kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 m\u1ee9c s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean b\u00ean trong m\u00e1y ch\u1ee7.<\/li>\n\n\n\n<li><strong>Gi\u00e1m s\u00e1t uptime c\u1ee7a website:<\/strong> Ki\u1ec3m tra t\u1eeb b\u00ean ngo\u00e0i xem website ho\u1eb7c \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c hay kh\u00f4ng.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t VPS v\u1eabn c\u00f3 th\u1ec3 \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng trong khi website tr\u00ean m\u00e1y ch\u1ee7 g\u1eb7p l\u1ed7i. V\u00ec v\u1eady, k\u1ebft h\u1ee3p hai h\u00ecnh th\u1ee9c gi\u00e1m s\u00e1t s\u1ebd gi\u00fap b\u1ea1n \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng d\u1ecbch v\u1ee5 \u0111\u1ea7y \u0111\u1ee7 h\u01a1n.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-1024x549.png\" alt=\"Gi\u00e1m s\u00e1t VPS l\u00e0 g\u00ec? C\u1ea7n theo d\u00f5i nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0o?\" class=\"wp-image-131660\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-20-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Gi\u00e1m s\u00e1t VPS l\u00e0 g\u00ec? C\u1ea7n theo d\u00f5i nh\u1eefng th\u00f4ng s\u1ed1 n\u00e0o?<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"C\u1ea7n_chu\u1ea9n_b\u1ecb_g\u00ec_tr\u01b0\u1edbc_khi_gi\u00e1m_s\u00e1t_VPS?\"><strong>C\u1ea7n chu\u1ea9n b\u1ecb g\u00ec tr\u01b0\u1edbc khi gi\u00e1m s\u00e1t VPS?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c trong h\u01b0\u1edbng d\u1eabn, b\u1ea1n c\u1ea7n chu\u1ea9n b\u1ecb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M\u1ed9t VPS Linux:<\/strong> \u01afu ti\u00ean Ubuntu ho\u1eb7c Debian. C\u00e1c b\u1ea3n ph\u00e2n ph\u1ed1i Linux kh\u00e1c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u1ea7n l\u1edbn c\u00e2u l\u1ec7nh t\u01b0\u01a1ng t\u1ef1.<\/li>\n\n\n\n<li><strong>Th\u00f4ng tin \u0111\u0103ng nh\u1eadp SSH:<\/strong> Bao g\u1ed3m \u0111\u1ecba ch\u1ec9 IP VPS, t\u00ean ng\u01b0\u1eddi d\u00f9ng, c\u1ed5ng SSH v\u00e0 m\u1eadt kh\u1ea9u ho\u1eb7c SSH Key.<\/li>\n\n\n\n<li><strong>C\u00f4ng c\u1ee5 k\u1ebft n\u1ed1i SSH:<\/strong> C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Xshell, PuTTY ho\u1eb7c Windows PowerShell.<\/li>\n\n\n\n<li><strong>Quy\u1ec1n qu\u1ea3n tr\u1ecb:<\/strong> M\u1ed9t s\u1ed1 thao t\u00e1c ki\u1ec3m tra nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng ho\u1eb7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m c\u1ea7n quy\u1ec1n sudo ho\u1eb7c t\u00e0i kho\u1ea3n root.<\/li>\n\n\n\n<li><strong>K\u1ebft n\u1ed1i Internet tr\u00ean VPS:<\/strong> C\u1ea7n thi\u1ebft n\u1ebfu b\u1ea1n mu\u1ed1n c\u00e0i \u0111\u1eb7t c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t tr\u1ef1c tuy\u1ebfn.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> Ph\u1ea7n h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho VPS Linux s\u1eed d\u1ee5ng systemd, \u0111i\u1ec3n h\u00ecnh l\u00e0 c\u00e1c b\u1ea3n Ubuntu Server v\u00e0 Debian hi\u1ec7n \u0111\u1ea1i. VPS Windows Server c\u1ea7n ph\u01b0\u01a1ng ph\u00e1p gi\u00e1m s\u00e1t kh\u00e1c.<\/p>\n\n\n\n<h2 id=\"H\u01b0\u1edbng_d\u1eabn_gi\u00e1m_s\u00e1t_VPS_b\u1eb1ng_l\u1ec7nh_Linux_qua_SSH\"><strong>H\u01b0\u1edbng d\u1eabn gi\u00e1m s\u00e1t VPS b\u1eb1ng l\u1ec7nh Linux qua SSH<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 gi\u00e1m s\u00e1t VPS l\u00e0 s\u1eed d\u1ee5ng nh\u1eefng c\u00f4ng c\u1ee5 c\u00f3 s\u1eb5n tr\u00ean Linux.<\/strong> Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y kh\u00f4ng y\u00eau c\u1ea7u c\u00e0i \u0111\u1eb7t h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t ph\u1ee9c t\u1ea1p v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi m\u1edbi l\u00e0m quen v\u1edbi m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_1._K\u1ebft_n\u1ed1i_SSH_v\u00e0o_VPS\"><strong>B\u01b0\u1edbc 1. K\u1ebft n\u1ed1i SSH v\u00e0o VPS<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, b\u1ea1n c\u1ea7n \u0111\u0103ng nh\u1eadp v\u00e0o VPS \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c c\u00e2u l\u1ec7nh ki\u1ec3m tra. Xem h\u01b0\u1edbng d\u1eabn: <a href=\"https:\/\/tino.vn\/blog\/docs\/su-dung-phan-mem-xshell-ket-noi-ssh-toi-vps\/\" target=\"_blank\" rel=\"noreferrer noopener\">H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m Xshell k\u1ebft n\u1ed1i SSH t\u1edbi VPS<\/a>.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_2._Ki\u1ec3m_tra_th\u1eddi_gian_ho\u1ea1t_\u0111\u1ed9ng_v\u00e0_t\u1ea3i_h\u1ec7_th\u1ed1ng\"><strong>B\u01b0\u1edbc 2. Ki\u1ec3m tra th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ea3i h\u1ec7 th\u1ed1ng<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u ti\u00ean, h\u00e3y s\u1eed d\u1ee5ng l\u1ec7nh:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>uptime<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y hi\u1ec3n th\u1ecb th\u1eddi gian VPS \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng k\u1ec3 t\u1eeb l\u1ea7n kh\u1edfi \u0111\u1ed9ng g\u1ea7n nh\u1ea5t, s\u1ed1 phi\u00ean ng\u01b0\u1eddi d\u00f9ng \u0111ang \u0111\u0103ng nh\u1eadp v\u00e0 m\u1ee9c t\u1ea3i trung b\u00ecnh c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>14:30:00 up 5 days, 2:15, 1 user, load average: 0.25, 0.40, 0.35<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 k\u1ebft qu\u1ea3 minh h\u1ecda, kh\u00f4ng ph\u1ea3i s\u1ed1 li\u1ec7u \u0111o t\u1eeb m\u1ed9t VPS th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>up 5 days, 2:15: <\/strong>M\u00e1y ch\u1ee7 \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng 5 ng\u00e0y v\u00e0 2 gi\u1edd 15 ph\u00fat.<\/li>\n\n\n\n<li><strong>1 user: <\/strong>C\u00f3 m\u1ed9t phi\u00ean ng\u01b0\u1eddi d\u00f9ng \u0111ang \u0111\u0103ng nh\u1eadp.<\/li>\n\n\n\n<li><strong>load average:<\/strong> Ba gi\u00e1 tr\u1ecb th\u1ec3 hi\u1ec7n m\u1ee9c t\u1ea3i trung b\u00ecnh trong 1 ph\u00fat, 5 ph\u00fat v\u00e0 15 ph\u00fat g\u1ea7n nh\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 bi\u1ebft s\u1ed1 \u0111\u01a1n v\u1ecb x\u1eed l\u00fd CPU kh\u1ea3 d\u1ee5ng cho ti\u1ebfn tr\u00ecnh hi\u1ec7n t\u1ea1i, nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nproc<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1eb3ng h\u1ea1n, l\u1ec7nh tr\u1ea3 v\u1ec1 2 ngh\u0129a l\u00e0 ti\u1ebfn tr\u00ecnh hi\u1ec7n t\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng hai \u0111\u01a1n v\u1ecb x\u1eed l\u00fd CPU.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-1024x549.png\" alt=\"Ki\u1ec3m tra th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ea3i h\u1ec7 th\u1ed1ng\" class=\"wp-image-131641\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-1-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Ki\u1ec3m tra th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ea3i h\u1ec7 th\u1ed1ng<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch \u0111\u00e1nh gi\u00e1 Load Average:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi m\u1ed9t VPS c\u00f3 2 vCPU kh\u1ea3 d\u1ee5ng, Load Average duy tr\u00ec quanh m\u1ee9c 2 cho th\u1ea5y h\u1ec7 th\u1ed1ng \u0111ang c\u00f3 t\u1ea3i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng hai t\u00e1c v\u1ee5 li\u00ean t\u1ee5c \u1edf tr\u1ea1ng th\u00e1i ch\u1ea1y ho\u1eb7c ch\u1edd x\u1eed l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu Load Average cao h\u01a1n kh\u1ea3 n\u0103ng x\u1eed l\u00fd trong th\u1eddi gian d\u00e0i, b\u1ea1n n\u00ean ki\u1ec3m tra nguy\u00ean nh\u00e2n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, Load Average kh\u00f4ng ph\u1ea3i ph\u1ea7n tr\u0103m s\u1eed d\u1ee5ng CPU. Ch\u1ec9 s\u1ed1 n\u00e0y c\u00f2n bao g\u1ed3m nh\u1eefng t\u00e1c v\u1ee5 \u0111ang ch\u1edd I\/O, ch\u1eb3ng h\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc v\u00e0 ghi \u1ed5 \u0111\u0129a. V\u00ec v\u1eady, kh\u00f4ng n\u00ean k\u1ebft lu\u1eadn VPS b\u1ecb qu\u00e1 t\u1ea3i ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t l\u1ea7n ki\u1ec3m tra Load Average.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_3._Gi\u00e1m_s\u00e1t_CPU_v\u00e0_c\u00e1c_ti\u1ebfn_tr\u00ecnh\"><strong>B\u01b0\u1edbc 3. Gi\u00e1m s\u00e1t CPU v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 theo d\u00f5i m\u1ee9c s\u1eed d\u1ee5ng CPU theo th\u1eddi gian th\u1ef1c, s\u1eed d\u1ee5ng l\u1ec7nh:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>top<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi th\u1ef1c hi\u1ec7n, Terminal s\u1ebd hi\u1ec3n th\u1ecb b\u1ea3ng th\u00f4ng tin t\u00e0i nguy\u00ean v\u00e0 danh s\u00e1ch ti\u1ebfn tr\u00ecnh \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n ch\u00fa \u00fd hai khu v\u1ef1c:<\/p>\n\n\n\n<h4 id=\"1._Th\u00f4ng_tin_CPU\"><strong>1. Th\u00f4ng tin CPU<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong khu v\u1ef1c %Cpu(s), m\u1ed9t s\u1ed1 ch\u1ec9 s\u1ed1 quan tr\u1ecdng g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>us: <\/strong>Th\u1eddi gian CPU x\u1eed l\u00fd c\u00e1c ti\u1ebfn tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng.<\/li>\n\n\n\n<li><strong>sy: <\/strong>Th\u1eddi gian CPU x\u1eed l\u00fd c\u00e1c t\u00e1c v\u1ee5 c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n<li><strong>id: <\/strong>T\u1ef7 l\u1ec7 th\u1eddi gian CPU nh\u00e0n r\u1ed7i.<\/li>\n\n\n\n<li><strong>wa:<\/strong> T\u1ef7 l\u1ec7 th\u1eddi gian CPU ch\u1edd ho\u00e0n t\u1ea5t ho\u1ea1t \u0111\u1ed9ng I\/O.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-1024x549.png\" alt=\"Gi\u00e1m s\u00e1t CPU v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh\" class=\"wp-image-131642\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-2-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Gi\u00e1m s\u00e1t CPU v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, n\u1ebfu CPU c\u00f3 id kho\u1ea3ng 70%, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y CPU \u0111ang nh\u00e0n r\u1ed7i ph\u1ea7n l\u1edbn th\u1eddi gian trong kho\u1ea3ng l\u1ea5y m\u1eabu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, khi id li\u00ean t\u1ee5c gi\u1ea3m xu\u1ed1ng m\u1ee9c r\u1ea5t th\u1ea5p v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 x\u1eed l\u00fd t\u0103ng cao, VPS c\u00f3 th\u1ec3 \u0111ang ch\u1ecbu t\u1ea3i CPU l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu wa duy tr\u00ec cao, c\u1ea7n xem x\u00e9t hi\u1ec7u su\u1ea5t \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o CPU.<\/p>\n\n\n\n<h4 id=\"2._Danh_s\u00e1ch_ti\u1ebfn_tr\u00ecnh\"><strong>2. Danh s\u00e1ch ti\u1ebfn tr\u00ecnh<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede ph\u1ea7n b\u00ean d\u01b0\u1edbi, l\u1ec7nh top hi\u1ec3n th\u1ecb nh\u1eefng th\u00f4ng tin nh\u01b0:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>C\u1ed9t<\/strong><\/td><td><strong>\u00dd ngh\u0129a<\/strong><\/td><\/tr><tr><td>PID<\/td><td>M\u00e3 \u0111\u1ecbnh danh ti\u1ebfn tr\u00ecnh<\/td><\/tr><tr><td>USER<\/td><td>T\u00e0i kho\u1ea3n \u0111ang ch\u1ea1y ti\u1ebfn tr\u00ecnh<\/td><\/tr><tr><td>%CPU<\/td><td>T\u1ef7 l\u1ec7 CPU ti\u1ebfn tr\u00ecnh \u0111ang s\u1eed d\u1ee5ng<\/td><\/tr><tr><td>%MEM<\/td><td>T\u1ef7 l\u1ec7 RAM ti\u1ebfn tr\u00ecnh \u0111ang s\u1eed d\u1ee5ng<\/td><\/tr><tr><td>COMMAND<\/td><td>T\u00ean l\u1ec7nh ho\u1eb7c ch\u01b0\u01a1ng tr\u00ecnh<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong giao di\u1ec7n top, b\u1ea1n c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1ea5n<strong> P<\/strong> \u0111\u1ec3 s\u1eafp x\u1ebfp ti\u1ebfn tr\u00ecnh theo m\u1ee9c s\u1eed d\u1ee5ng CPU.<\/li>\n\n\n\n<li>Nh\u1ea5n <strong>M<\/strong> \u0111\u1ec3 s\u1eafp x\u1ebfp theo m\u1ee9c s\u1eed d\u1ee5ng RAM.<\/li>\n\n\n\n<li>Nh\u1ea5n<strong> q<\/strong> \u0111\u1ec3 tho\u00e1t kh\u1ecfi giao di\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> Tr\u00ean h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u l\u00f5i CPU, m\u1ed9t ti\u1ebfn tr\u00ecnh c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb m\u1ee9c s\u1eed d\u1ee5ng CPU v\u01b0\u1ee3t 100% t\u00f9y ch\u1ebf \u0111\u1ed9 hi\u1ec3n th\u1ecb v\u00e0 c\u00e1ch t\u00ednh c\u1ee7a c\u00f4ng c\u1ee5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu mu\u1ed1n xem nhanh nh\u1eefng ti\u1ebfn tr\u00ecnh ti\u00eau th\u1ee5 CPU cao nh\u1ea5t m\u00e0 kh\u00f4ng m\u1edf giao di\u1ec7n top, h\u00e3y s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ps -eo pid,comm,%cpu,%mem --sort=-%cpu | head<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh s\u1ebd li\u1ec7t k\u00ea nh\u1eefng ti\u1ebfn tr\u00ecnh \u0111\u1ee9ng \u0111\u1ea7u theo m\u1ee9c s\u1eed d\u1ee5ng CPU \u0111\u01b0\u1ee3c ps ghi nh\u1eadn.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-1024x549.png\" alt=\"Gi\u00e1m s\u00e1t CPU v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh\" class=\"wp-image-131643\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-3-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Gi\u00e1m s\u00e1t CPU v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">C\u1ea7n l\u01b0u \u00fd r\u1eb1ng<strong> %CPU<\/strong> c\u1ee7a ps th\u01b0\u1eddng ph\u1ea3n \u00e1nh t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng CPU trung b\u00ecnh trong th\u1eddi gian t\u1ed3n t\u1ea1i c\u1ee7a ti\u1ebfn tr\u00ecnh, kh\u00f4ng ph\u1ea3i m\u1ee9c t\u1ea3i t\u1ee9c th\u1eddi gi\u1ed1ng c\u00e1ch theo d\u00f5i li\u00ean t\u1ee5c b\u1eb1ng top.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_4._Ki\u1ec3m_tra_dung_l\u01b0\u1ee3ng_RAM_v\u00e0_Swap\"><strong>B\u01b0\u1edbc 4. Ki\u1ec3m tra dung l\u01b0\u1ee3ng RAM v\u00e0 Swap<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ki\u1ec3m tra b\u1ed9 nh\u1edb c\u1ee7a VPS, nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>free -h<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y hi\u1ec3n th\u1ecb t\u1ed5ng dung l\u01b0\u1ee3ng RAM, l\u01b0\u1ee3ng b\u1ed9 nh\u1edb \u0111\u00e3 s\u1eed d\u1ee5ng, b\u1ed9 nh\u1edb c\u00f2n kh\u1ea3 d\u1ee5ng v\u00e0 t\u00ecnh tr\u1ea1ng Swap.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Swap<\/strong> l\u00e0 v\u00f9ng l\u01b0u tr\u1eef \u0111\u01b0\u1ee3c h\u1ec7 \u0111i\u1ec1u h\u00e0nh s\u1eed d\u1ee5ng \u0111\u1ec3 h\u1ed7 tr\u1ee3 qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb khi c\u1ea7n thi\u1ebft. Swap kh\u00f4ng c\u00f3 t\u1ed1c \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng RAM v\u1eadt l\u00fd.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-1024x549.png\" alt=\"Ki\u1ec3m tra dung l\u01b0\u1ee3ng RAM v\u00e0 Swap\" class=\"wp-image-131644\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-4-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Ki\u1ec3m tra dung l\u01b0\u1ee3ng RAM v\u00e0 Swap<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 c\u1ee7a <code>free -h <\/code>th\u01b0\u1eddng bao g\u1ed3m nh\u1eefng c\u1ed9t sau:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Th\u00f4ng s\u1ed1<\/strong><\/td><td><strong>\u00dd ngh\u0129a<\/strong><\/td><\/tr><tr><td>total<\/td><td>T\u1ed5ng dung l\u01b0\u1ee3ng b\u1ed9 nh\u1edb<\/td><\/tr><tr><td>used<\/td><td>Dung l\u01b0\u1ee3ng \u0111\u00e3 s\u1eed d\u1ee5ng<\/td><\/tr><tr><td>free<\/td><td>Dung l\u01b0\u1ee3ng ch\u01b0a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/td><\/tr><tr><td>buff\/cache<\/td><td>B\u1ed9 nh\u1edb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho b\u1ed9 \u0111\u1ec7m v\u00e0 cache<\/td><\/tr><tr><td>available<\/td><td>\u01af\u1edbc t\u00ednh l\u01b0\u1ee3ng RAM c\u00f3 th\u1ec3 c\u1ea5p cho \u1ee9ng d\u1ee5ng m\u1edbi m\u00e0 kh\u00f4ng c\u1ea7n Swap<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Th\u00f4ng s\u1ed1 quan tr\u1ecdng nh\u1ea5t c\u1ea7n quan s\u00e1t l\u00e0 <strong>available.<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Linux th\u01b0\u1eddng t\u1eadn d\u1ee5ng RAM ch\u01b0a s\u1eed d\u1ee5ng \u0111\u1ec3 l\u01b0u cache, gi\u00fap t\u0103ng hi\u1ec7u qu\u1ea3 truy xu\u1ea5t d\u1eef li\u1ec7u. V\u00ec v\u1eady, m\u1ee9c RAM \u0111\u00e3 s\u1eed d\u1ee5ng cao ch\u01b0a ch\u1eafc \u0111\u1ed3ng ngh\u0129a m\u00e1y ch\u1ee7 \u0111ang thi\u1ebfu b\u1ed9 nh\u1edb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t VPS c\u00f3 4 GB RAM, hi\u1ec3n th\u1ecb h\u01a1n 3 GB \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0ng v\u1eabn c\u00f2n kho\u1ea3ng 1 GB available c\u00f3 th\u1ec3 ch\u01b0a g\u1eb7p \u00e1p l\u1ef1c b\u1ed9 nh\u1edb \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu available li\u00ean t\u1ee5c xu\u1ed1ng th\u1ea5p, \u1ee9ng d\u1ee5ng ph\u1ea3n h\u1ed3i ch\u1eadm v\u00e0 Swap t\u0103ng m\u1ea1nh, b\u1ea1n n\u00ean ki\u1ec3m tra ti\u1ebfn tr\u00ecnh ti\u00eau th\u1ee5 RAM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 s\u1eafp x\u1ebfp c\u00e1c ti\u1ebfn tr\u00ecnh theo m\u1ee9c s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb, nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ps -eo pid,comm,%cpu,%mem --sort=-%mem | head<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, trong tr\u01b0\u1eddng h\u1ee3p h\u1ec7 th\u1ed1ng thi\u1ebfu RAM nghi\u00eam tr\u1ecdng, Linux c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf OOM Killer \u0111\u1ec3 k\u1ebft th\u00fac ti\u1ebfn tr\u00ecnh nh\u1eb1m gi\u1ea3i ph\u00f3ng b\u1ed9 nh\u1edb.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-1024x549.png\" alt=\"Ki\u1ec3m tra dung l\u01b0\u1ee3ng RAM v\u00e0 Swap\" class=\"wp-image-131645\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-5-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Ki\u1ec3m tra dung l\u01b0\u1ee3ng RAM v\u00e0 Swap<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu mu\u1ed1n ki\u1ec3m tra c\u00e1c th\u00f4ng b\u00e1o li\u00ean quan trong nh\u1eadt k\u00fd kernel c\u1ee7a l\u1ea7n kh\u1edfi \u0111\u1ed9ng hi\u1ec7n t\u1ea1i, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo journalctl -k -b --no-pager | grep -i -E 'out of memory|oom-kill|killed process' | tail -n 20<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu kh\u00f4ng c\u00f3 k\u1ebft qu\u1ea3, \u0111i\u1ec1u \u0111\u00f3 ch\u1ec9 cho bi\u1ebft kh\u00f4ng t\u00ecm th\u1ea5y th\u00f4ng b\u00e1o kh\u1edbp v\u1edbi b\u1ed9 l\u1ecdc trong ph\u1ea1m vi nh\u1eadt k\u00fd \u0111\u01b0\u1ee3c truy v\u1ea5n, ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 kh\u1eb3ng \u0111\u1ecbnh VPS ch\u01b0a t\u1eebng g\u1eb7p l\u1ed7i thi\u1ebfu b\u1ed9 nh\u1edb.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_5._Theo_d\u00f5i_dung_l\u01b0\u1ee3ng_\u1ed5_\u0111\u0129a\"><strong>B\u01b0\u1edbc 5. Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ed4 \u0111\u0129a \u0111\u1ea7y c\u00f3 th\u1ec3 khi\u1ebfn website, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 tr\u00ean VPS g\u1eb7p l\u1ed7i khi c\u1ea7n ghi d\u1eef li\u1ec7u m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ki\u1ec3m tra dung l\u01b0\u1ee3ng c\u00e1c h\u1ec7 th\u1ed1ng t\u1ec7p \u0111ang \u0111\u01b0\u1ee3c g\u1eafn k\u1ebft, nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -h<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Trong k\u1ebft qu\u1ea3, nh\u1eefng c\u1ed9t quan tr\u1ecdng g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Size: <\/strong>T\u1ed5ng dung l\u01b0\u1ee3ng h\u1ec7 th\u1ed1ng t\u1ec7p.<\/li>\n\n\n\n<li><strong>Used:<\/strong> Dung l\u01b0\u1ee3ng \u0111\u00e3 s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li><strong>Avail: <\/strong>Dung l\u01b0\u1ee3ng c\u00f2n kh\u1ea3 d\u1ee5ng.<\/li>\n\n\n\n<li><strong>Use%:<\/strong> T\u1ef7 l\u1ec7 dung l\u01b0\u1ee3ng \u0111\u00e3 s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li><strong>Mounted on: <\/strong>V\u1ecb tr\u00ed g\u1eafn k\u1ebft.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131646\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-6-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c bi\u1ec7t, h\u00e3y ch\u00fa \u00fd ph\u00e2n v\u00f9ng g\u1ed1c <strong>\/<\/strong> v\u00e0 c\u00e1c ph\u00e2n v\u00f9ng ri\u00eang \u0111ang l\u01b0u tr\u1eef d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng. N\u1ebfu ch\u1ec9 mu\u1ed1n ki\u1ec3m tra ph\u00e2n v\u00f9ng ch\u1ee9a th\u01b0 m\u1ee5c g\u1ed1c, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -h \/<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i dung l\u01b0\u1ee3ng, b\u1ea1n c\u0169ng n\u00ean ki\u1ec3m tra <strong>inode<\/strong>, \u0111\u01a1n v\u1ecb metadata m\u00e0 h\u1ec7 th\u1ed1ng t\u1ec7p s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u1ea3n l\u00fd file v\u00e0 th\u01b0 m\u1ee5c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -i<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t h\u1ec7 th\u1ed1ng t\u1ec7p c\u00f3 th\u1ec3 c\u00f2n dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef nh\u01b0ng \u0111\u00e3 c\u1ea1n inode, khi\u1ebfn vi\u1ec7c t\u1ea1o file m\u1edbi th\u1ea5t b\u1ea1i.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131647\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-7-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Khi ph\u00e1t hi\u1ec7n \u1ed5 \u0111\u0129a g\u1ea7n \u0111\u1ea7y, h\u00e3y ki\u1ec3m tra nh\u1eefng nh\u00f3m d\u1eef li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng t\u0103ng nhanh nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>File log c\u1ee7a h\u1ec7 th\u1ed1ng v\u00e0 \u1ee9ng d\u1ee5ng.<\/li>\n\n\n\n<li>File backup c\u0169.<\/li>\n\n\n\n<li>D\u1eef li\u1ec7u c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li>Image, container v\u00e0 volume Docker.<\/li>\n\n\n\n<li>File t\u1ea1m ho\u1eb7c d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ea3i l\u00ean th\u01b0\u1eddng xuy\u00ean.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> Kh\u00f4ng n\u00ean x\u00f3a d\u1eef li\u1ec7u h\u1ec7 th\u1ed1ng, th\u01b0 m\u1ee5c \u1ee9ng d\u1ee5ng ho\u1eb7c Docker volume khi ch\u01b0a x\u00e1c \u0111\u1ecbnh r\u00f5 ch\u1ee9c n\u0103ng v\u00e0 m\u1ee9c \u0111\u1ed9 c\u1ea7n thi\u1ebft c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_6._Ki\u1ec3m_tra_l\u01b0u_l\u01b0\u1ee3ng_m\u1ea1ng\"><strong>B\u01b0\u1edbc 6. Ki\u1ec3m tra l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 xem th\u1ed1ng k\u00ea d\u1eef li\u1ec7u g\u1eedi v\u00e0 nh\u1eadn tr\u00ean c\u00e1c giao di\u1ec7n m\u1ea1ng c\u1ee7a VPS, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ip -s link<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 hi\u1ec3n th\u1ecb nh\u1eefng th\u00f4ng tin li\u00ean quan \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>RX: <\/strong>D\u1eef li\u1ec7u v\u00e0 g\u00f3i tin nh\u1eadn v\u00e0o.<\/li>\n\n\n\n<li><strong>TX:<\/strong> D\u1eef li\u1ec7u v\u00e0 g\u00f3i tin g\u1eedi \u0111i.<\/li>\n\n\n\n<li><strong>errors:<\/strong> S\u1ed1 l\u1ed7i ghi nh\u1eadn tr\u00ean giao di\u1ec7n m\u1ea1ng.<\/li>\n\n\n\n<li><strong>dropped:<\/strong> S\u1ed1 g\u00f3i tin b\u1ecb lo\u1ea1i b\u1ecf theo b\u1ed9 \u0111\u1ebfm t\u01b0\u01a1ng \u1ee9ng.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 \u0111\u1ebfm n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00edch l\u0169y theo th\u1eddi gian, kh\u00f4ng tr\u1ef1c ti\u1ebfp th\u1ec3 hi\u1ec7n t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i hi\u1ec7n t\u1ea1i t\u00ednh b\u1eb1ng Mbps.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131648\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-8-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u00e1nh gi\u00e1 l\u01b0u l\u01b0\u1ee3ng t\u0103ng hay gi\u1ea3m, b\u1ea1n c\u1ea7n so s\u00e1nh s\u1ed1 li\u1ec7u gi\u1eefa nh\u1eefng th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau ho\u1eb7c s\u1eed d\u1ee5ng c\u00f4ng c\u1ee5 c\u00f3 bi\u1ec3u \u0111\u1ed3 theo th\u1eddi gian.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, c\u00f3 th\u1ec3 ki\u1ec3m tra nh\u1eefng c\u1ed5ng TCP v\u00e0 UDP m\u00e0 h\u1ec7 th\u1ed1ng \u0111ang l\u1eafng nghe:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ss -tuln<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh gi\u00fap nh\u1eadn bi\u1ebft c\u00e1c d\u1ecbch v\u1ee5 \u0111ang m\u1edf socket l\u1eafng nghe tr\u00ean m\u00e1y ch\u1ee7.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131649\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-9-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, m\u1ed9t c\u1ed5ng \u0111ang l\u1eafng nghe kh\u00f4ng \u0111\u1ed3ng ngh\u0129a c\u1ed5ng \u0111\u00f3 c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c t\u1eeb Internet. Firewall, NAT v\u00e0 c\u00e1c quy t\u1eafc m\u1ea1ng kh\u00e1c v\u1eabn c\u00f3 th\u1ec3 ch\u1eb7n k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_7._Ki\u1ec3m_tra_tr\u1ea1ng_th\u00e1i_d\u1ecbch_v\u1ee5_v\u00e0_nh\u1eadt_k\u00fd_l\u1ed7i\"><strong>B\u01b0\u1edbc 7. Ki\u1ec3m tra tr\u1ea1ng th\u00e1i d\u1ecbch v\u1ee5 v\u00e0 nh\u1eadt k\u00fd l\u1ed7i<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i t\u00e0i nguy\u00ean ph\u1ea7n c\u1ee9ng, vi\u1ec7c gi\u00e1m s\u00e1t VPS c\u1ea7n bao g\u1ed3m tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a nh\u1eefng d\u1ecbch v\u1ee5 quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean Ubuntu v\u00e0 Debian s\u1eed d\u1ee5ng systemd, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra c\u00e1c d\u1ecbch v\u1ee5 \u0111ang \u1edf tr\u1ea1ng th\u00e1i l\u1ed7i b\u1eb1ng l\u1ec7nh:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl --failed --no-pager<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu VPS \u0111ang ch\u1ea1y Nginx, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl status nginx --no-pager<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 th\u01b0\u1eddng hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>active (running): <\/strong>D\u1ecbch v\u1ee5 \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong>inactive (dead): <\/strong>D\u1ecbch v\u1ee5 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/li>\n\n\n\n<li><strong>failed:<\/strong> D\u1ecbch v\u1ee5 \u0111\u00e3 chuy\u1ec3n sang tr\u1ea1ng th\u00e1i l\u1ed7i.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131650\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-10-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 xem 30 d\u00f2ng nh\u1eadt k\u00fd g\u1ea7n nh\u1ea5t c\u1ee7a d\u1ecbch v\u1ee5 Nginx, nh\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo journalctl -u nginx -n 30 --no-pager<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u1ea7n t\u00ecm c\u00e1c th\u00f4ng b\u00e1o l\u1ed7i h\u1ec7 th\u1ed1ng trong l\u1ea7n kh\u1edfi \u0111\u1ed9ng hi\u1ec7n t\u1ea1i, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo journalctl -p err -b -n 30 --no-pager<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-1024x549.png\" alt=\"Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a\" class=\"wp-image-131651\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-11-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Theo d\u00f5i dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> nginx ch\u1ec9 l\u00e0 v\u00ed d\u1ee5. N\u1ebfu VPS s\u1eed d\u1ee5ng Apache, Docker ho\u1eb7c m\u1ed9t d\u1ecbch v\u1ee5 kh\u00e1c, b\u1ea1n c\u1ea7n thay b\u1eb1ng \u0111\u00fang t\u00ean systemd unit t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t d\u1ecbch v\u1ee5 c\u00f3 tr\u1ea1ng th\u00e1i active (running) ch\u01b0a ch\u1eafc \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang v\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng. Ch\u1eb3ng h\u1ea1n, web server v\u1eabn \u0111ang ch\u1ea1y nh\u01b0ng website c\u00f3 th\u1ec3 tr\u1ea3 v\u1ec1 l\u1ed7i HTTP 500 do \u1ee9ng d\u1ee5ng ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, n\u00ean k\u1ebft h\u1ee3p ki\u1ec3m tra d\u1ecbch v\u1ee5 v\u1edbi vi\u1ec7c truy c\u1eadp th\u1ef1c t\u1ebf v\u00e0o website.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_8._Gi\u00e1m_s\u00e1t_t\u00e0i_nguy\u00ean_container_Docker_(n\u1ebfu_c\u00f3)\"><strong>B\u01b0\u1edbc 8. Gi\u00e1m s\u00e1t t\u00e0i nguy\u00ean container Docker (n\u1ebfu c\u00f3)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu VPS \u0111ang ch\u1ea1y c\u00e1c \u1ee9ng d\u1ee5ng b\u1eb1ng Docker nh\u01b0 n8n ho\u1eb7c m\u1ed9t h\u1ec7 th\u1ed1ng AI Agent \u0111\u01b0\u1ee3c tri\u1ec3n khai trong container, b\u1ea1n c\u00f3 th\u1ec3 theo d\u00f5i t\u00e0i nguy\u00ean c\u1ee7a t\u1eebng container ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, ki\u1ec3m tra danh s\u00e1ch container \u0111ang ho\u1ea1t \u0111\u1ed9ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>docker ps<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>docker stats<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh s\u1ebd li\u00ean t\u1ee5c hi\u1ec3n th\u1ecb th\u1ed1ng k\u00ea t\u00e0i nguy\u00ean c\u1ee7a c\u00e1c container \u0111ang ch\u1ea1y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng th\u00f4ng s\u1ed1 \u0111\u00e1ng ch\u00fa \u00fd g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CPU %:<\/strong> M\u1ee9c s\u1eed d\u1ee5ng CPU c\u1ee7a container.<\/li>\n\n\n\n<li><strong>MEM USAGE \/ LIMIT: <\/strong>Dung l\u01b0\u1ee3ng RAM \u0111\u00e3 s\u1eed d\u1ee5ng so v\u1edbi gi\u1edbi h\u1ea1n.<\/li>\n\n\n\n<li><strong>MEM %: <\/strong>T\u1ef7 l\u1ec7 b\u1ed9 nh\u1edb s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li><strong>NET I\/O: <\/strong>Th\u1ed1ng k\u00ea d\u1eef li\u1ec7u nh\u1eadn v\u00e0 g\u1eedi.<\/li>\n\n\n\n<li><strong>BLOCK I\/O: <\/strong>Th\u1ed1ng k\u00ea ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1ea5n <strong>Ctrl + C<\/strong> \u0111\u1ec3 tho\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ch\u1ec9 mu\u1ed1n l\u1ea5y m\u1ed9t l\u1ea7n k\u1ebft qu\u1ea3, s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>docker stats --no-stream<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-1024x549.png\" alt=\"Gi\u00e1m s\u00e1t t\u00e0i nguy\u00ean container Docker (n\u1ebfu c\u00f3)\" class=\"wp-image-131652\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-12-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Gi\u00e1m s\u00e1t t\u00e0i nguy\u00ean container Docker (n\u1ebfu c\u00f3)<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Trong tr\u01b0\u1eddng h\u1ee3p t\u00e0i kho\u1ea3n SSH kh\u00f4ng c\u00f3 quy\u1ec1n truy c\u1eadp Docker daemon, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea7n ch\u1ea1y l\u1ec7nh b\u1eb1ng sudo theo c\u1ea5u h\u00ecnh ph\u00e2n quy\u1ec1n c\u1ee7a m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p khi m\u1ed9t VPS ch\u1ea1y nhi\u1ec1u \u1ee9ng d\u1ee5ng, b\u1edfi b\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t container n\u00e0o \u0111ang ti\u00eau th\u1ee5 nhi\u1ec1u t\u00e0i nguy\u00ean thay v\u00ec ch\u1ec9 quan s\u00e1t t\u1ed5ng t\u1ea3i c\u1ee7a to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h2 id=\"H\u01b0\u1edbng_d\u1eabn_gi\u00e1m_s\u00e1t_VPS_24\/7_b\u1eb1ng_Netdata\"><strong>H\u01b0\u1edbng d\u1eabn gi\u00e1m s\u00e1t VPS 24\/7 b\u1eb1ng Netdata<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Netdata l\u00e0 c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng thu th\u1eadp s\u1ed1 li\u1ec7u theo th\u1eddi gian th\u1ef1c, hi\u1ec3n th\u1ecb bi\u1ec3u \u0111\u1ed3 t\u00e0i nguy\u00ean v\u00e0 h\u1ed7 tr\u1ee3 c\u1ea3nh b\u00e1o.<\/strong> \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p n\u1ebfu b\u1ea1n mu\u1ed1n theo d\u00f5i VPS th\u01b0\u1eddng xuy\u00ean m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u0103ng nh\u1eadp SSH \u0111\u1ec3 ki\u1ec3m tra t\u1eebng th\u00f4ng s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c c\u00e2u l\u1ec7nh Linux ch\u1ec9 hi\u1ec3n th\u1ecb d\u1eef li\u1ec7u khi \u0111\u01b0\u1ee3c th\u1ef1c thi, Netdata Agent ch\u1ea1y tr\u00ean m\u00e1y ch\u1ee7 \u0111\u1ec3 thu th\u1eadp c\u00e1c ch\u1ec9 s\u1ed1 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i Agent v\u1edbi Netdata Cloud \u0111\u1ec3 qu\u1ea3n l\u00fd bi\u1ec3u \u0111\u1ed3 v\u00e0 th\u00f4ng b\u00e1o qua giao di\u1ec7n web.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_1._T\u1ea1o_t\u00e0i_kho\u1ea3n_Netdata_Cloud\"><strong>B\u01b0\u1edbc 1. T\u1ea1o t\u00e0i kho\u1ea3n Netdata Cloud<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc ti\u00ean, truy c\u1eadp: <a href=\"https:\/\/app.netdata.cloud\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">https:\/\/app.netdata.cloud<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u0103ng k\u00fd ho\u1eb7c \u0111\u0103ng nh\u1eadp t\u00e0i kho\u1ea3n Netdata Cloud.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi \u0111\u0103ng nh\u1eadp:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>T\u1ea1o ho\u1eb7c ch\u1ecdn m\u1ed9t <strong>Space<\/strong>, n\u01a1i qu\u1ea3n l\u00fd c\u00e1c m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/li>\n\n\n\n<li>T\u00ecm t\u00f9y ch\u1ecdn <strong>Connect Nodes<\/strong> ho\u1eb7c <strong>Add Nodes<\/strong> trong giao di\u1ec7n.<\/li>\n\n\n\n<li>Ch\u1ecdn ph\u01b0\u01a1ng th\u1ee9c c\u00e0i \u0111\u1eb7t Agent ph\u00f9 h\u1ee3p v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux.<\/li>\n\n\n\n<li><strong>Sao ch\u00e9p l\u1ec7nh c\u00e0i \u0111\u1eb7t<\/strong> \u0111\u01b0\u1ee3c Netdata Cloud cung c\u1ea5p.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ec7nh n\u00e0y c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c tham s\u1ed1 ri\u00eang nh\u01b0 Claim Token v\u00e0 Room ID nh\u1eb1m k\u1ebft n\u1ed1i VPS v\u1edbi \u0111\u00fang kh\u00f4ng gian qu\u1ea3n l\u00fd.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15-1024x549.png\" alt=\" T\u1ea1o t\u00e0i kho\u1ea3n Netdata Cloud\" class=\"wp-image-131655\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15-768x412.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-15.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong> T\u1ea1o t\u00e0i kho\u1ea3n Netdata Cloud<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> Kh\u00f4ng chia s\u1ebb Claim Token c\u00f4ng khai ho\u1eb7c \u0111\u01b0a token th\u1ef1c t\u1ebf v\u00e0o h\u00ecnh \u1ea3nh minh h\u1ecda b\u00e0i vi\u1ebft. N\u1ebfu b\u1ecb l\u1ed9, c\u1ea7n thu h\u1ed3i v\u00e0 t\u1ea1o l\u1ea1i token theo h\u01b0\u1edbng d\u1eabn c\u1ee7a Netdata.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_2._C\u00e0i_\u0111\u1eb7t_Netdata_Agent_l\u00ean_VPS\"><strong>B\u01b0\u1edbc 2. C\u00e0i \u0111\u1eb7t Netdata Agent l\u00ean VPS<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1edf Xshell ho\u1eb7c c\u00f4ng c\u1ee5 SSH \u0111ang s\u1eed d\u1ee5ng v\u00e0 k\u1ebft n\u1ed1i v\u00e0o VPS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong Terminal, d\u00e1n l\u1ec7nh c\u00e0i \u0111\u1eb7t \u0111\u00e3 \u0111\u01b0\u1ee3c t\u1ea1o tr\u1ef1c ti\u1ebfp t\u1eeb t\u00e0i kho\u1ea3n Netdata Cloud.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c, m\u1ed9t m\u1eabu l\u1ec7nh k\u1ebft n\u1ed1i Netdata Agent c\u00f3 d\u1ea1ng:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bash &lt;(curl -Ss https:\/\/get.netdata.cloud\/kickstart.sh) --claim-token YOUR_TOKEN --claim-rooms YOUR_ROOMS --claim-url https:\/\/app.netdata.cloud<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>YOUR_TOKEN: <\/strong>Token do Netdata Cloud c\u1ea5p.<\/li>\n\n\n\n<li><strong>YOUR_ROOMS:<\/strong> Th\u00f4ng tin Room do Netdata Cloud cung c\u1ea5p.<\/li>\n\n\n\n<li><strong>https:\/\/app.netdata.cloud:<\/strong> \u0110\u1ecba ch\u1ec9 d\u1ecbch v\u1ee5 Netdata Cloud.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea1n n\u00ean sao ch\u00e9p nguy\u00ean l\u1ec7nh d\u00e0nh ri\u00eang cho VPS t\u1eeb giao di\u1ec7n Netdata Cloud<\/strong>, thay v\u00ec s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp l\u1ec7nh minh h\u1ecda c\u00f3 placeholder \u1edf tr\u00ean.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-1024x549.png\" alt=\"C\u00e0i \u0111\u1eb7t Netdata Agent l\u00ean VPS\" class=\"wp-image-131656\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-16-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u00e0i \u0111\u1eb7t Netdata Agent l\u00ean VPS<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ecnh c\u00e0i \u0111\u1eb7t ch\u00ednh th\u1ee9c s\u1ebd ki\u1ec3m tra h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng th\u1ee9c c\u00e0i \u0111\u1eb7t t\u01b0\u01a1ng \u1ee9ng. M\u1ed9t s\u1ed1 t\u00f9y ch\u1ecdn c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn k\u00eanh ph\u00e1t h\u00e0nh Stable\/Nightly, t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt v\u00e0 k\u1ebft n\u1ed1i Cloud.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi VPS \u0111ang v\u1eadn h\u00e0nh d\u1ecbch v\u1ee5 quan tr\u1ecdng, n\u00ean \u01b0u ti\u00ean k\u00eanh ph\u00e1t h\u00e0nh Stable n\u1ebfu kh\u00f4ng c\u00f3 nhu c\u1ea7u ki\u1ec3m th\u1eed phi\u00ean b\u1ea3n m\u1edbi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do l\u1ec7nh c\u00e0i \u0111\u1eb7t t\u1ea3i v\u00e0 th\u1ef1c thi script t\u1eeb Internet, h\u00e3y b\u1ea3o \u0111\u1ea3m \u0111\u1ecba ch\u1ec9 ngu\u1ed3n ch\u00ednh x\u00e1c v\u00e0 ch\u1ec9 th\u1ef1c hi\u1ec7n khi tin t\u01b0\u1edfng ngu\u1ed3n c\u00e0i \u0111\u1eb7t. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u1ea3i script v\u1ec1 \u0111\u1ec3 xem n\u1ed9i dung tr\u01b0\u1edbc khi ch\u1ea1y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi ho\u00e0n t\u1ea5t, ki\u1ec3m tra tr\u1ea1ng th\u00e1i Netdata Agent:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl status netdata --no-pager<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu d\u1ecbch v\u1ee5 hi\u1ec3n th\u1ecb active (running), Netdata Agent \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1edfi ch\u1ea1y th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, b\u1ea1n v\u1eabn c\u1ea7n x\u00e1c nh\u1eadn k\u1ebft n\u1ed1i v\u1edbi Netdata Cloud \u1edf b\u01b0\u1edbc ti\u1ebfp theo.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_3._Ki\u1ec3m_tra_bi\u1ec3u_\u0111\u1ed3_t\u00e0i_nguy\u00ean\"><strong>B\u01b0\u1edbc 3. Ki\u1ec3m tra bi\u1ec3u \u0111\u1ed3 t\u00e0i nguy\u00ean<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Quay l\u1ea1i giao di\u1ec7n Netdata Cloud. N\u1ebfu c\u00e0i \u0111\u1eb7t v\u00e0 k\u1ebft n\u1ed1i th\u00e0nh c\u00f4ng, VPS s\u1ebd xu\u1ea5t hi\u1ec7n trong danh s\u00e1ch c\u00e1c node c\u1ee7a Space.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ecdn m\u00e1y ch\u1ee7 v\u1eeba k\u1ebft n\u1ed1i v\u00e0 m\u1edf ph\u1ea7n <strong>Metrics<\/strong> \u0111\u1ec3 xem c\u00e1c bi\u1ec3u \u0111\u1ed3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f9y c\u00e1c b\u1ed9 thu th\u1eadp d\u1eef li\u1ec7u \u0111ang ho\u1ea1t \u0111\u1ed9ng, giao di\u1ec7n c\u00f3 th\u1ec3 cung c\u1ea5p th\u00f4ng tin v\u1ec1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ee9c s\u1eed d\u1ee5ng CPU.<\/li>\n\n\n\n<li>Dung l\u01b0\u1ee3ng RAM v\u00e0 Swap.<\/li>\n\n\n\n<li>Ho\u1ea1t \u0111\u1ed9ng \u0111\u1ecdc, ghi d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li>L\u01b0u l\u01b0\u1ee3ng m\u1ea1ng.<\/li>\n\n\n\n<li>Load Average.<\/li>\n\n\n\n<li>Ti\u1ebfn tr\u00ecnh v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 h\u1ec7 th\u1ed1ng kh\u00e1c.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17-1024x549.png\" alt=\"Ki\u1ec3m tra bi\u1ec3u \u0111\u1ed3 t\u00e0i nguy\u00ean\" class=\"wp-image-131657\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17-768x412.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-17.png 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Ki\u1ec3m tra bi\u1ec3u \u0111\u1ed3 t\u00e0i nguy\u00ean<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, khi nh\u1eadn th\u1ea5y CPU t\u0103ng m\u1ea1nh v\u00e0o m\u1ed9t th\u1eddi \u0111i\u1ec3m c\u1ee5 th\u1ec3, b\u1ea1n c\u00f3 th\u1ec3 xem bi\u1ec3u \u0111\u1ed3 c\u00f9ng kho\u1ea3ng th\u1eddi gian \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh li\u1ec7u RAM, ho\u1ea1t \u0111\u1ed9ng \u1ed5 \u0111\u0129a ho\u1eb7c l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng c\u00f3 thay \u0111\u1ed5i t\u01b0\u01a1ng \u1ee9ng hay kh\u00f4ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u1ee3i \u00edch quan tr\u1ecdng c\u1ee7a vi\u1ec7c gi\u00e1m s\u00e1t b\u1eb1ng bi\u1ec3u \u0111\u1ed3 l\u1ecbch s\u1eed thay v\u00ec ch\u1ec9 ki\u1ec3m tra t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch x\u00e1c nh\u1eadn th\u00e0nh c\u00f4ng:<\/strong> VPS hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i k\u1ebft n\u1ed1i ph\u00f9 h\u1ee3p tr\u00ean Netdata Cloud v\u00e0 c\u00e1c bi\u1ec3u \u0111\u1ed3 th\u1ef1c s\u1ef1 c\u00f3 d\u1eef li\u1ec7u m\u1edbi \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_4._B\u1ea3o_v\u1ec7_giao_di\u1ec7n_Netdata\"><strong>B\u01b0\u1edbc 4. B\u1ea3o v\u1ec7 giao di\u1ec7n Netdata<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Theo t\u00e0i li\u1ec7u Netdata, Agent c\u00f3 th\u1ec3 cung c\u1ea5p giao di\u1ec7n web c\u1ee5c b\u1ed9 tr\u00ean c\u1ed5ng 19999. N\u1ebfu VPS s\u1edf h\u1eefu IP c\u00f4ng khai v\u00e0 c\u1ed5ng n\u00e0y c\u00f3 th\u1ec3 truy c\u1eadp t\u1eeb Internet, d\u1eef li\u1ec7u gi\u00e1m s\u00e1t c\u00f3 nguy c\u01a1 b\u1ecb ng\u01b0\u1eddi kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p xem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec v\u1eady, <strong>kh\u00f4ng n\u00ean m\u1edf c\u00f4ng khai c\u1ed5ng 19999 ch\u1ec9 \u0111\u1ec3 theo d\u00f5i VPS t\u1eeb xa<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu ch\u1ec9 s\u1eed d\u1ee5ng Netdata Cloud v\u00e0 kh\u00f4ng tri\u1ec3n khai VPS th\u00e0nh Netdata Parent nh\u1eadn d\u1eef li\u1ec7u t\u1eeb c\u00e1c Agent kh\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 t\u1eaft giao di\u1ec7n web tr\u1ef1c ti\u1ebfp c\u1ee7a Agent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean VPS, chuy\u1ec3n \u0111\u1ebfn th\u01b0 m\u1ee5c c\u1ea5u h\u00ecnh Netdata b\u1eb1ng l\u1ec7nh:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd \/etc\/netdata 2&gt;\/dev\/null || cd \/opt\/netdata\/etc\/netdata<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3 m\u1edf c\u00f4ng c\u1ee5 ch\u1ec9nh s\u1eeda c\u1ea5u h\u00ecnh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">sudo .\/edit-config netdata.conf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n [web] c\u1ee7a t\u1ec7p c\u1ea5u h\u00ecnh, thi\u1ebft l\u1eadp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#091;web]\n\n&nbsp;&nbsp;&nbsp;&nbsp;mode = none<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu t\u1ec7p \u0111\u00e3 c\u00f3 ph\u1ea7n [web], h\u00e3y ch\u1ec9nh s\u1eeda b\u00ean trong ph\u1ea7n hi\u1ec7n c\u00f3, kh\u00f4ng t\u1ea1o th\u00eam c\u1ea5u h\u00ecnh tr\u00f9ng l\u1eb7p. L\u01b0u v\u00e0 \u0111\u00f3ng t\u1ec7p b\u1eb1ng thao t\u00e1c t\u01b0\u01a1ng \u1ee9ng v\u1edbi tr\u00ecnh so\u1ea1n th\u1ea3o \u0111ang m\u1edf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, kh\u1edfi \u0111\u1ed9ng l\u1ea1i Netdata:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra tr\u1ea1ng th\u00e1i:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart netdata<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl is-active netdata<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-1024x549.png\" alt=\"B\u1ea3o v\u1ec7 giao di\u1ec7n Netdata\" class=\"wp-image-131658\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-18-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>B\u1ea3o v\u1ec7 giao di\u1ec7n Netdata<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 active, d\u1ecbch v\u1ee5 v\u1eabn \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3, quay l\u1ea1i Netdata Cloud \u0111\u1ec3 x\u00e1c nh\u1eadn m\u00e1y ch\u1ee7 ti\u1ebfp t\u1ee5c g\u1eedi d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea5u h\u00ecnh <strong>mode = none<\/strong> v\u00f4 hi\u1ec7u h\u00f3a giao di\u1ec7n web tr\u1ef1c ti\u1ebfp c\u1ee7a Agent nh\u01b0ng v\u1eabn cho ph\u00e9p c\u01a1 ch\u1ebf k\u1ebft n\u1ed1i Netdata Cloud ph\u00f9 h\u1ee3p ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng tri\u1ec3n khai Netdata Parent ho\u1eb7c c\u00f3 nhu c\u1ea7u streaming n\u1ed9i b\u1ed9, c\u1ea7n tham kh\u1ea3o c\u1ea5u h\u00ecnh b\u1ea3o m\u1eadt t\u01b0\u01a1ng \u1ee9ng tr\u01b0\u1edbc khi thay \u0111\u1ed5i.<\/p>\n\n\n\n<h3 id=\"B\u01b0\u1edbc_5._Thi\u1ebft_l\u1eadp_th\u00f4ng_b\u00e1o_c\u1ea3nh_b\u00e1o\"><strong>B\u01b0\u1edbc 5. Thi\u1ebft l\u1eadp th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Netdata h\u1ed7 tr\u1ee3 ph\u00e1t hi\u1ec7n nhi\u1ec1u t\u00ecnh tr\u1ea1ng b\u1ea5t th\u01b0\u1eddng th\u00f4ng qua c\u00e1c quy t\u1eafc c\u1ea3nh b\u00e1o c\u00f3 s\u1eb5n v\u00e0 c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh th\u00eam th\u00f4ng b\u00e1o theo nhu c\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 qu\u1ea3n l\u00fd th\u00f4ng b\u00e1o trong Netdata Cloud:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Truy c\u1eadp Space \u0111ang qu\u1ea3n l\u00fd VPS.<\/li>\n\n\n\n<li>M\u1edf <strong>Space Settings<\/strong>.<\/li>\n\n\n\n<li>Ch\u1ecdn <strong>Alerts &amp; Notifications<\/strong>.<\/li>\n\n\n\n<li>M\u1edf m\u1ee5c <strong>Notification Methods<\/strong>.<\/li>\n\n\n\n<li>Ki\u1ec3m tra c\u00e1c ph\u01b0\u01a1ng th\u1ee9c th\u00f4ng b\u00e1o hi\u1ec7n c\u00f3 v\u00e0 c\u1ea5u h\u00ecnh nh\u1eefng ph\u01b0\u01a1ng th\u1ee9c \u0111\u01b0\u1ee3c g\u00f3i d\u1ecbch v\u1ee5 h\u1ed7 tr\u1ee3.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu mu\u1ed1n nh\u1eadn c\u1ea3nh b\u00e1o c\u00e1 nh\u00e2n, b\u1ea1n c\u00f3 th\u1ec3 m\u1edf ph\u1ea7n <strong>Settings \u2192 Notifications<\/strong> t\u1eeb t\u00e0i kho\u1ea3n c\u00e1 nh\u00e2n \u0111\u1ec3 ki\u1ec3m tra nh\u1eefng t\u00f9y ch\u1ecdn t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng tr\u1ea1ng th\u00e1i c\u1ea3nh b\u00e1o th\u01b0\u1eddng g\u1eb7p g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>WARNING:<\/strong> C\u00f3 d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng c\u1ea7n ch\u00fa \u00fd.<\/li>\n\n\n\n<li><strong>CRITICAL:<\/strong> V\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u1edbm.<\/li>\n\n\n\n<li><strong>CLEAR:<\/strong> Ch\u1ec9 s\u1ed1 \u0111\u00e3 quay l\u1ea1i tr\u1ea1ng th\u00e1i b\u00ecnh th\u01b0\u1eddng.<\/li>\n\n\n\n<li><strong>UNREACHABLE:<\/strong> Node kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i t\u1edbi h\u1ec7 th\u1ed1ng theo d\u00f5i.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi c\u1ea5u h\u00ecnh, h\u00e3y ki\u1ec3m tra ph\u01b0\u01a1ng th\u1ee9c nh\u1eadn th\u00f4ng b\u00e1o, quy\u1ec1n truy c\u1eadp v\u00e0 b\u1ed9 l\u1ecdc m\u1ee9c \u0111\u1ed9 c\u1ea3nh b\u00e1o.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-1024x549.png\" alt=\"Thi\u1ebft l\u1eadp th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o\" class=\"wp-image-131659\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-19-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Thi\u1ebft l\u1eadp th\u00f4ng b\u00e1o c\u1ea3nh b\u00e1o<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u01b0u \u00fd:<\/strong> Netdata c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u1ea3nh b\u00e1o nh\u01b0ng kh\u00f4ng \u0111\u1ed3ng ngh\u0129a m\u1ecdi ph\u01b0\u01a1ng th\u1ee9c g\u1eedi th\u00f4ng b\u00e1o \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. C\u00e1c t\u00edch h\u1ee3p v\u00e0 quy\u1ec1n c\u1ea5u h\u00ecnh c\u0169ng c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y g\u00f3i d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ebfn \u0111\u00e2y, b\u1ea1n \u0111\u00e3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Netdata \u0111\u1ec3 theo d\u00f5i VPS li\u00ean t\u1ee5c v\u00e0 ch\u1ee7 \u0111\u1ed9ng ki\u1ec3m tra nh\u1eefng c\u1ea3nh b\u00e1o ph\u00e1t sinh.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_ng\u01b0\u1ee1ng_c\u1ea3nh_b\u00e1o_quan_tr\u1ecdng_khi_gi\u00e1m_s\u00e1t_VPS\"><strong>Nh\u1eefng ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o quan tr\u1ecdng khi gi\u00e1m s\u00e1t VPS<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 m\u1ed9t ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o c\u1ed1 \u0111\u1ecbnh ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi VPS. B\u1ea1n n\u00ean l\u1ef1a ch\u1ecdn gi\u1edbi h\u1ea1n d\u1ef1a tr\u00ean c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7, \u0111\u1eb7c \u0111i\u1ec3m \u1ee9ng d\u1ee5ng v\u00e0 m\u1ee9c t\u1ea3i th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 <strong>nh\u1eefng ng\u01b0\u1ee1ng tham kh\u1ea3o \u0111\u1ec3 b\u1eaft \u0111\u1ea7u thi\u1ebft l\u1eadp gi\u00e1m s\u00e1t<\/strong>, kh\u00f4ng ph\u1ea3i gi\u1edbi h\u1ea1n k\u1ef9 thu\u1eadt b\u1eaft bu\u1ed9c:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Th\u00f4ng s\u1ed1<\/strong><\/td><td><strong>Ng\u01b0\u1ee1ng tham kh\u1ea3o<\/strong><\/td><td><strong>H\u01b0\u1edbng x\u1eed l\u00fd<\/strong><\/td><\/tr><tr><td>CPU Usage<\/td><td>Tr\u00ean 85% li\u00ean t\u1ee5c 5\u201310 ph\u00fat<\/td><td>Ki\u1ec3m tra ti\u1ebfn tr\u00ecnh \u0111ang s\u1eed d\u1ee5ng CPU<\/td><\/tr><tr><td>RAM Available<\/td><td>D\u01b0\u1edbi kho\u1ea3ng 10\u201315% t\u1ed5ng RAM trong th\u1eddi gian d\u00e0i<\/td><td>Ki\u1ec3m tra b\u1ed9 nh\u1edb kh\u1ea3 d\u1ee5ng, Swap v\u00e0 c\u00e1c ti\u1ebfn tr\u00ecnh<\/td><\/tr><tr><td>Disk Usage<\/td><td>Tr\u00ean 80% n\u00ean ch\u00fa \u00fd, tr\u00ean 90% c\u1ea7n \u01b0u ti\u00ean x\u1eed l\u00fd<\/td><td>Ki\u1ec3m tra log, backup v\u00e0 d\u1eef li\u1ec7u t\u0103ng nhanh<\/td><\/tr><tr><td>Load Average<\/td><td>Duy tr\u00ec cao h\u01a1n s\u1ed1 vCPU kh\u1ea3 d\u1ee5ng<\/td><td>Ki\u1ec3m tra CPU, I\/O v\u00e0 h\u00e0ng \u0111\u1ee3i t\u00e1c v\u1ee5<\/td><\/tr><tr><td>Inode Usage<\/td><td>Ti\u1ebfn g\u1ea7n 100%<\/td><td>X\u00e1c \u0111\u1ecbnh th\u01b0 m\u1ee5c ch\u1ee9a qu\u00e1 nhi\u1ec1u file nh\u1ecf<\/td><\/tr><tr><td>Service Status<\/td><td>D\u1ecbch v\u1ee5 quan tr\u1ecdng chuy\u1ec3n sang failed ho\u1eb7c inactive ngo\u00e0i d\u1ef1 ki\u1ebfn<\/td><td>Ki\u1ec3m tra nh\u1eadt k\u00fd v\u00e0 nguy\u00ean nh\u00e2n d\u1eebng<\/td><\/tr><tr><td>Website Availability<\/td><td>Kh\u00f4ng ph\u1ea3n h\u1ed3i qua c\u00e1c l\u1ea7n ki\u1ec3m tra li\u00ean ti\u1ebfp<\/td><td>Ki\u1ec3m tra website, d\u1ecbch v\u1ee5 web v\u00e0 k\u1ebft n\u1ed1i m\u1ea1ng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t VPS x\u1eed l\u00fd t\u00e1c v\u1ee5 AI ho\u1eb7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng CPU cao trong th\u1eddi gian ng\u1eafn khi th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c n\u1eb7ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu CPU nhanh ch\u00f3ng tr\u1edf l\u1ea1i b\u00ecnh th\u01b0\u1eddng v\u00e0 \u1ee9ng d\u1ee5ng kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng, m\u1ee9c t\u1ea3i cao t\u1ee9c th\u1eddi ch\u01b0a \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn m\u00e1y ch\u1ee7 g\u1eb7p s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu CPU ho\u1eb7c RAM li\u00ean t\u1ee5c \u1edf m\u1ee9c gi\u1edbi h\u1ea1n, th\u1eddi gian ph\u1ea3n h\u1ed3i ng\u00e0y c\u00e0ng ch\u1eadm v\u00e0 \u1ee9ng d\u1ee5ng th\u01b0\u1eddng xuy\u00ean b\u1ecb gi\u00e1n \u0111o\u1ea1n, b\u1ea1n c\u1ea7n t\u00ecm nguy\u00ean nh\u00e2n v\u00e0 c\u00e2n nh\u1eafc \u0111i\u1ec1u ch\u1ec9nh t\u00e0i nguy\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean t\u1eafc quan tr\u1ecdng:<\/strong> H\u00e3y k\u1ebft h\u1ee3p ng\u01b0\u1ee1ng c\u1ea3nh b\u00e1o v\u1edbi th\u1eddi gian duy tr\u00ec v\u00e0 \u1ea3nh h\u01b0\u1edfng th\u1ef1c t\u1ebf \u0111\u1ebfn d\u1ecbch v\u1ee5, thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o m\u1ed9t gi\u00e1 tr\u1ecb t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n\n\n\n<h2 id=\"C\u00e1c_v\u1ea5n_\u0111\u1ec1_th\u01b0\u1eddng_g\u1eb7p_khi_theo_d\u00f5i_VPS_v\u00e0_c\u00e1ch_x\u1eed_l\u00fd\"><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi theo d\u00f5i VPS v\u00e0 c\u00e1ch x\u1eed l\u00fd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong qu\u00e1 tr\u00ecnh gi\u00e1m s\u00e1t, ng\u01b0\u1eddi m\u1edbi c\u00f3 th\u1ec3 g\u1eb7p nh\u1eefng t\u00ecnh hu\u1ed1ng d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn.<\/p>\n\n\n\n<h3 id=\"1._VPS_c\u00f3_Load_Average_cao_nh\u01b0ng_CPU_kh\u00f4ng_qu\u00e1_t\u1ea3i\"><strong>1. VPS c\u00f3 Load Average cao nh\u01b0ng CPU kh\u00f4ng qu\u00e1 t\u1ea3i<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn c\u00e1c ti\u1ebfn tr\u00ecnh \u0111ang ch\u1edd ho\u1ea1t \u0111\u1ed9ng I\/O. H\u00e3y ki\u1ec3m tra th\u00f4ng s\u1ed1 wa trong top, t\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef.<\/p>\n\n\n\n<h3 id=\"2._RAM_hi\u1ec3n_th\u1ecb_\u0111\u00e3_s\u1eed_d\u1ee5ng_nhi\u1ec1u_nh\u01b0ng_\u1ee9ng_d\u1ee5ng_v\u1eabn_ch\u1ea1y_b\u00ecnh_th\u01b0\u1eddng\"><strong>2. RAM hi\u1ec3n th\u1ecb \u0111\u00e3 s\u1eed d\u1ee5ng nhi\u1ec1u nh\u01b0ng \u1ee9ng d\u1ee5ng v\u1eabn ch\u1ea1y b\u00ecnh th\u01b0\u1eddng<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Linux s\u1eed d\u1ee5ng m\u1ed9t ph\u1ea7n RAM cho cache. H\u00e3y ki\u1ec3m tra c\u1ed9t available b\u1eb1ng free -h tr\u01b0\u1edbc khi k\u1ebft lu\u1eadn m\u00e1y ch\u1ee7 thi\u1ebfu b\u1ed9 nh\u1edb.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-1024x549.png\" alt=\"C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi theo d\u00f5i VPS v\u00e0 c\u00e1ch x\u1eed l\u00fd\" class=\"wp-image-131653\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-13-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p khi theo d\u00f5i VPS v\u00e0 c\u00e1ch x\u1eed l\u00fd<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h3 id=\"3._\u1ed4_\u0111\u0129a_c\u00f2n_dung_l\u01b0\u1ee3ng_nh\u01b0ng_kh\u00f4ng_t\u1ea1o_\u0111\u01b0\u1ee3c_file_m\u1edbi\"><strong>3. \u1ed4 \u0111\u0129a c\u00f2n dung l\u01b0\u1ee3ng nh\u01b0ng kh\u00f4ng t\u1ea1o \u0111\u01b0\u1ee3c file m\u1edbi<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 th\u1ec3 h\u1ec7 th\u1ed1ng t\u1ec7p \u0111\u00e3 c\u1ea1n inode ho\u1eb7c g\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1ec1 quy\u1ec1n ghi, gi\u1edbi h\u1ea1n t\u00e0i nguy\u00ean hay tr\u1ea1ng th\u00e1i ch\u1ec9 \u0111\u1ecdc. Tr\u01b0\u1edbc ti\u00ean, s\u1eed d\u1ee5ng df -i \u0111\u1ec3 ki\u1ec3m tra s\u1ed1 inode c\u00f2n kh\u1ea3 d\u1ee5ng.<\/p>\n\n\n\n<h3 id=\"4._Kh\u00f4ng_th\u1ea5y_VPS_xu\u1ea5t_hi\u1ec7n_tr\u00ean_Netdata_Cloud\"><strong>4. Kh\u00f4ng th\u1ea5y VPS xu\u1ea5t hi\u1ec7n tr\u00ean Netdata Cloud<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Netdata Agent c\u00f3 \u0111ang ho\u1ea1t \u0111\u1ed9ng hay kh\u00f4ng.<\/li>\n\n\n\n<li>VPS c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i Internet ra ngo\u00e0i qua HTTPS hay kh\u00f4ng.<\/li>\n\n\n\n<li>Claim Token v\u00e0 Room \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh ch\u00ednh x\u00e1c hay ch\u01b0a.<\/li>\n\n\n\n<li>C\u00e1c quy t\u1eafc firewall c\u00f3 \u0111ang ng\u0103n k\u1ebft n\u1ed1i t\u1eeb Agent t\u1edbi Cloud hay kh\u00f4ng.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"5._VPS_v\u1eabn_ho\u1ea1t_\u0111\u1ed9ng_nh\u01b0ng_website_kh\u00f4ng_truy_c\u1eadp_\u0111\u01b0\u1ee3c\"><strong>5. VPS v\u1eabn ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng website kh\u00f4ng truy c\u1eadp \u0111\u01b0\u1ee3c<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ecnh tr\u1ea1ng n\u00e0y c\u00f3 th\u1ec3 xu\u1ea5t ph\u00e1t t\u1eeb d\u1ecbch v\u1ee5 web, \u1ee9ng d\u1ee5ng, DNS, SSL, firewall ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y ki\u1ec3m tra tr\u1ea1ng th\u00e1i d\u1ecbch v\u1ee5, nh\u1eadt k\u00fd l\u1ed7i v\u00e0 k\u1ebft qu\u1ea3 gi\u00e1m s\u00e1t HTTP t\u1eeb b\u00ean ngo\u00e0i tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh kh\u1edfi \u0111\u1ed9ng l\u1ea1i m\u00e1y ch\u1ee7.<\/p>\n\n\n\n<h2 id=\"M\u1ed9t_s\u1ed1_l\u01b0u_\u00fd_gi\u00fap_gi\u00e1m_s\u00e1t_VPS_hi\u1ec7u_qu\u1ea3\"><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd gi\u00fap gi\u00e1m s\u00e1t VPS hi\u1ec7u qu\u1ea3<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 qu\u00e1 tr\u00ecnh gi\u00e1m s\u00e1t mang l\u1ea1i gi\u00e1 tr\u1ecb th\u1ef1c t\u1ebf, b\u1ea1n n\u00ean duy tr\u00ec m\u1ed9t s\u1ed1 th\u00f3i quen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Theo d\u00f5i theo th\u1eddi gian:<\/strong> Kh\u00f4ng ch\u1ec9 xem s\u1ed1 li\u1ec7u hi\u1ec7n t\u1ea1i, h\u00e3y quan s\u00e1t bi\u1ec3u \u0111\u1ed3 nhi\u1ec1u gi\u1edd ho\u1eb7c nhi\u1ec1u ng\u00e0y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xu h\u01b0\u1edbng t\u0103ng t\u00e0i nguy\u00ean.<\/li>\n\n\n\n<li><strong>\u01afu ti\u00ean d\u1ecbch v\u1ee5 quan tr\u1ecdng:<\/strong> Website, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng \u0111ang ph\u1ee5c v\u1ee5 ng\u01b0\u1eddi d\u00f9ng n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u01b0\u1edbc.<\/li>\n\n\n\n<li><strong>Kh\u00f4ng thi\u1ebft l\u1eadp ng\u01b0\u1ee1ng qu\u00e1 nh\u1ea1y:<\/strong> C\u1ea3nh b\u00e1o li\u00ean t\u1ee5c v\u00ec c\u00e1c dao \u0111\u1ed9ng nh\u1ecf c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n b\u1ecf qua nh\u1eefng v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng.<\/li>\n\n\n\n<li><strong>B\u1ea3o m\u1eadt c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t:<\/strong> H\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp Dashboard, b\u1ea3o v\u1ec7 token v\u00e0 kh\u00f4ng c\u00f4ng khai nh\u1eefng c\u1ed5ng qu\u1ea3n tr\u1ecb kh\u00f4ng c\u1ea7n thi\u1ebft.<\/li>\n\n\n\n<li><strong>Ki\u1ec3m tra sau khi thay \u0111\u1ed5i c\u1ea5u h\u00ecnh:<\/strong> Khi c\u00e0i \u1ee9ng d\u1ee5ng m\u1edbi, n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh Docker, c\u1ea7n quan s\u00e1t l\u1ea1i CPU, RAM v\u00e0 th\u1eddi gian ph\u1ea3n h\u1ed3i.<\/li>\n\n\n\n<li><strong>Duy tr\u00ec sao l\u01b0u \u0111\u1ed9c l\u1eadp:<\/strong> Gi\u00e1m s\u00e1t gi\u00fap ph\u00e1t hi\u1ec7n nguy c\u01a1 nh\u01b0ng kh\u00f4ng th\u1ec3 thay th\u1ebf vi\u1ec7c backup v\u00e0 ki\u1ec3m tra kh\u1ea3 n\u0103ng kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi VPS ch\u1ea1y d\u1ecbch v\u1ee5 quan tr\u1ecdng, b\u1ea1n n\u00ean k\u1ebft h\u1ee3p c\u00f4ng c\u1ee5 theo d\u00f5i t\u1ef1 \u0111\u1ed9ng, c\u1ea3nh b\u00e1o s\u1ef1 c\u1ed1 v\u00e0 quy tr\u00ecnh ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 ch\u1ee7 \u0111\u1ed9ng x\u1eed l\u00fd c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"549\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-1024x549.png\" alt=\"M\u1ed9t s\u1ed1 l\u01b0u \u00fd gi\u00fap gi\u00e1m s\u00e1t VPS hi\u1ec7u qu\u1ea3\" class=\"wp-image-131654\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-1024x549.png 1024w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-300x161.png 300w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-768x411.png 768w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-1536x823.png 1536w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2026\/10\/giam-sat-vps-14-2048x1097.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>M\u1ed9t s\u1ed1 l\u01b0u \u00fd gi\u00fap gi\u00e1m s\u00e1t VPS hi\u1ec7u qu\u1ea3<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 id=\"K\u1ebft_lu\u1eadn\"><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u00e1m s\u00e1t VPS<\/strong> l\u00e0 c\u00f4ng vi\u1ec7c c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t v\u00e0 ph\u00e1t hi\u1ec7n s\u1edbm nh\u1eefng s\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn website ho\u1eb7c \u1ee9ng d\u1ee5ng. V\u1edbi ng\u01b0\u1eddi m\u1edbi, b\u1ea1n n\u00ean b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1c l\u1ec7nh Linux \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 hi\u1ec3u c\u00e1ch \u0111\u1ecdc CPU, RAM, \u1ed5 \u0111\u0129a v\u00e0 tr\u1ea1ng th\u00e1i d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111\u00e3 quen v\u1edbi nh\u1eefng th\u00f4ng s\u1ed1 c\u01a1 b\u1ea3n, h\u00e3y s\u1eed d\u1ee5ng Netdata \u0111\u1ec3 theo d\u00f5i t\u00e0i nguy\u00ean li\u00ean t\u1ee5c v\u00e0 k\u1ebft h\u1ee3p c\u00f4ng c\u1ee5 ki\u1ec3m tra uptime b\u00ean ngo\u00e0i. Quan tr\u1ecdng nh\u1ea5t, h\u00e3y x\u00e2y d\u1ef1ng th\u00f3i quen ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u00e0 x\u1eed l\u00fd d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 id=\"Nh\u1eefng_c\u00e2u_h\u1ecfi_th\u01b0\u1eddng_g\u1eb7p\"><strong>Nh\u1eefng c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/strong><\/h2>\n\n\n\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"V\u00ec_sao_VPS_v\u1eabn_online_nh\u01b0ng_website_l\u1ea1i_b\u1ecb_l\u1ed7i?\">V\u00ec sao VPS v\u1eabn online nh\u01b0ng website l\u1ea1i b\u1ecb l\u1ed7i?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Tr\u1ea1ng th\u00e1i online ch\u1ec9 cho bi\u1ebft m\u00e1y ch\u1ee7 ho\u1eb7c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb VPS. Website c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i ri\u00eang do web server, \u1ee9ng d\u1ee5ng, c\u01a1 s\u1edf d\u1eef li\u1ec7u, DNS ho\u1eb7c ch\u1ee9ng ch\u1ec9 SSL. V\u00ec v\u1eady, n\u00ean k\u1ebft h\u1ee3p theo d\u00f5i VPS v\u1edbi c\u00f4ng c\u1ee5 ki\u1ec3m tra HTTP \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 \u1edf c\u1ea5p \u0111\u1ed9 website.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"CPU_VPS_\u0111\u1ea1t_100%_c\u00f3_nguy_hi\u1ec3m_kh\u00f4ng?\">CPU VPS \u0111\u1ea1t 100% c\u00f3 nguy hi\u1ec3m kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">CPU \u0111\u1ea1t 100% trong th\u1eddi gian ng\u1eafn kh\u00f4ng \u0111\u1ed3ng ngh\u0129a VPS b\u1ecb l\u1ed7i. M\u1ed9t s\u1ed1 t\u00e1c v\u1ee5 nh\u01b0 n\u00e9n d\u1eef li\u1ec7u, x\u1eed l\u00fd h\u00ecnh \u1ea3nh ho\u1eb7c ch\u1ea1y \u1ee9ng d\u1ee5ng t\u00ednh to\u00e1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ed1i \u0111a CPU trong th\u1eddi gian ng\u1eafn. Tuy nhi\u00ean, b\u1ea1n c\u1ea7n ch\u00fa \u00fd khi t\u00ecnh tr\u1ea1ng n\u00e0y k\u00e9o d\u00e0i, \u0111i k\u00e8m \u0111\u1ed9 tr\u1ec5 cao ho\u1eb7c khi\u1ebfn \u1ee9ng d\u1ee5ng kh\u00f4ng th\u1ec3 ph\u1ea3n h\u1ed3i.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"S\u1eed_d\u1ee5ng_Netdata_c\u00f3_thay_th\u1ebf_\u0111\u01b0\u1ee3c_vi\u1ec7c_backup_VPS_kh\u00f4ng?\">S\u1eed d\u1ee5ng Netdata c\u00f3 thay th\u1ebf \u0111\u01b0\u1ee3c vi\u1ec7c backup VPS kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng. Netdata \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng, kh\u00f4ng ph\u1ea3i c\u00f4ng c\u1ee5 sao l\u01b0u to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng. N\u1ebfu VPS b\u1ecb m\u1ea5t d\u1eef li\u1ec7u ho\u1eb7c g\u1eb7p l\u1ed7i nghi\u00eam tr\u1ecdng, b\u1ea1n v\u1eabn c\u1ea7n b\u1ea3n backup ri\u00eang v\u00e0 quy tr\u00ecnh kh\u00f4i ph\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"C\u00f3_c\u1ea7n_quy\u1ec1n_root_\u0111\u1ec3_gi\u00e1m_s\u00e1t_VPS_kh\u00f4ng?\">C\u00f3 c\u1ea7n quy\u1ec1n root \u0111\u1ec3 gi\u00e1m s\u00e1t VPS kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng nh\u1ea5t thi\u1ebft. Nhi\u1ec1u l\u1ec7nh nh\u01b0 uptime, top, free -h v\u00e0 df -h c\u00f3 th\u1ec3 ch\u1ea1y b\u1eb1ng t\u00e0i kho\u1ea3n th\u00f4ng th\u01b0\u1eddng. Tuy nhi\u00ean, vi\u1ec7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m, \u0111\u1ecdc m\u1ed9t s\u1ed1 nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng ho\u1eb7c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh d\u1ecbch v\u1ee5 th\u01b0\u1eddng y\u00eau c\u1ea7u quy\u1ec1n qu\u1ea3n tr\u1ecb th\u00f4ng qua sudo ho\u1eb7c root.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section\t\thelp class=\"sc_fs_faq sc_card    \"\n\t\t\t\t>\n\t\t\t\t<h2 id=\"C\u00f3_th\u1ec3_gi\u00e1m_s\u00e1t_VPS_Windows_b\u1eb1ng_c\u00e1c_l\u1ec7nh_trong_b\u00e0i_vi\u1ebft_kh\u00f4ng?\">C\u00f3 th\u1ec3 gi\u00e1m s\u00e1t VPS Windows b\u1eb1ng c\u00e1c l\u1ec7nh trong b\u00e0i vi\u1ebft kh\u00f4ng?<\/h2>\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng l\u1ec7nh nh\u01b0 top, free v\u00e0 df thu\u1ed9c m\u00f4i tr\u01b0\u1eddng Linux. V\u1edbi Windows Server, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Task Manager, Resource Monitor v\u00e0 Performance Monitor \u0111\u1ec3 theo d\u00f5i CPU, RAM, \u1ed5 \u0111\u0129a c\u0169ng nh\u01b0 c\u00e1c ti\u1ebfn tr\u00ecnh. M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t b\u00ean ngo\u00e0i c\u0169ng h\u1ed7 tr\u1ee3 c\u1ea3 Linux v\u00e0 Windows.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"V\u00ec sao VPS v\u1eabn online nh\u01b0ng website l\u1ea1i b\u1ecb l\u1ed7i?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Tr\u1ea1ng th\u00e1i online ch\u1ec9 cho bi\u1ebft m\u00e1y ch\u1ee7 ho\u1eb7c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb VPS. Website c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i ri\u00eang do web server, \u1ee9ng d\u1ee5ng, c\u01a1 s\u1edf d\u1eef li\u1ec7u, DNS ho\u1eb7c ch\u1ee9ng ch\u1ec9 SSL. V\u00ec v\u1eady, n\u00ean k\u1ebft h\u1ee3p theo d\u00f5i VPS v\u1edbi c\u00f4ng c\u1ee5 ki\u1ec3m tra HTTP \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 \u1edf c\u1ea5p \u0111\u1ed9 website.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"CPU VPS \u0111\u1ea1t 100% c\u00f3 nguy hi\u1ec3m kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>CPU \u0111\u1ea1t 100% trong th\u1eddi gian ng\u1eafn kh\u00f4ng \u0111\u1ed3ng ngh\u0129a VPS b\u1ecb l\u1ed7i. M\u1ed9t s\u1ed1 t\u00e1c v\u1ee5 nh\u01b0 n\u00e9n d\u1eef li\u1ec7u, x\u1eed l\u00fd h\u00ecnh \u1ea3nh ho\u1eb7c ch\u1ea1y \u1ee9ng d\u1ee5ng t\u00ednh to\u00e1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng t\u1ed1i \u0111a CPU trong th\u1eddi gian ng\u1eafn. Tuy nhi\u00ean, b\u1ea1n c\u1ea7n ch\u00fa \u00fd khi t\u00ecnh tr\u1ea1ng n\u00e0y k\u00e9o d\u00e0i, \u0111i k\u00e8m \u0111\u1ed9 tr\u1ec5 cao ho\u1eb7c khi\u1ebfn \u1ee9ng d\u1ee5ng kh\u00f4ng th\u1ec3 ph\u1ea3n h\u1ed3i.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"S\u1eed d\u1ee5ng Netdata c\u00f3 thay th\u1ebf \u0111\u01b0\u1ee3c vi\u1ec7c backup VPS kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng. Netdata \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng, kh\u00f4ng ph\u1ea3i c\u00f4ng c\u1ee5 sao l\u01b0u to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng. N\u1ebfu VPS b\u1ecb m\u1ea5t d\u1eef li\u1ec7u ho\u1eb7c g\u1eb7p l\u1ed7i nghi\u00eam tr\u1ecdng, b\u1ea1n v\u1eabn c\u1ea7n b\u1ea3n backup ri\u00eang v\u00e0 quy tr\u00ecnh kh\u00f4i ph\u1ee5c \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"C\u00f3 c\u1ea7n quy\u1ec1n root \u0111\u1ec3 gi\u00e1m s\u00e1t VPS kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Kh\u00f4ng nh\u1ea5t thi\u1ebft. Nhi\u1ec1u l\u1ec7nh nh\u01b0 uptime, top, free -h v\u00e0 df -h c\u00f3 th\u1ec3 ch\u1ea1y b\u1eb1ng t\u00e0i kho\u1ea3n th\u00f4ng th\u01b0\u1eddng. Tuy nhi\u00ean, vi\u1ec7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m, \u0111\u1ecdc m\u1ed9t s\u1ed1 nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng ho\u1eb7c thay \u0111\u1ed5i c\u1ea5u h\u00ecnh d\u1ecbch v\u1ee5 th\u01b0\u1eddng y\u00eau c\u1ea7u quy\u1ec1n qu\u1ea3n tr\u1ecb th\u00f4ng qua sudo ho\u1eb7c root.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"C\u00f3 th\u1ec3 gi\u00e1m s\u00e1t VPS Windows b\u1eb1ng c\u00e1c l\u1ec7nh trong b\u00e0i vi\u1ebft kh\u00f4ng?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>Nh\u1eefng l\u1ec7nh nh\u01b0 top, free v\u00e0 df thu\u1ed9c m\u00f4i tr\u01b0\u1eddng Linux. V\u1edbi Windows Server, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Task Manager, Resource Monitor v\u00e0 Performance Monitor \u0111\u1ec3 theo d\u00f5i CPU, RAM, \u1ed5 \u0111\u0129a c\u0169ng nh\u01b0 c\u00e1c ti\u1ebfn tr\u00ecnh. M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t b\u00ean ngo\u00e0i c\u0169ng h\u1ed7 tr\u1ee3 c\u1ea3 Linux v\u00e0 Windows.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ec3 gi\u00e1m s\u00e1t VPS, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u00e0o m\u00e1y ch\u1ee7 qua SSH v\u00e0 s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh Linux nh\u01b0 top, free -h, df -h v\u00e0 uptime \u0111\u1ec3 ki\u1ec3m tra CPU, RAM, \u1ed5 \u0111\u0129a c\u0169ng nh\u01b0 t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng. N\u1ebfu mu\u1ed1n theo d\u00f5i li\u00ean t\u1ee5c v\u00e0 nh\u1eadn c\u1ea3nh b\u00e1o khi [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":131661,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7728],"tags":[7736],"class_list":["post-131638","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-quan-tri-server","tag-quan-tri-server-linux"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/131638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=131638"}],"version-history":[{"count":3,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/131638\/revisions"}],"predecessor-version":[{"id":131662,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/131638\/revisions\/131662"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/131661"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=131638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=131638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=131638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}