{"id":14014,"date":"2021-05-31T16:46:06","date_gmt":"2021-05-31T09:46:06","guid":{"rendered":"https:\/\/blog.tinohost.com\/?p=14014"},"modified":"2025-06-11T14:12:49","modified_gmt":"2025-06-11T07:12:49","slug":"load-balancer-la-gi","status":"publish","type":"post","link":"https:\/\/tino.vn\/blog\/load-balancer-la-gi\/","title":{"rendered":"Load Balancer l\u00e0 g\u00ec? S\u1eed d\u1ee5ng Load Balancer mang \u0111\u1ebfn l\u1ee3i \u00edch g\u00ec?"},"content":{"rendered":"\n<p><strong>M\u1ed9t trang web l\u1edbn v\u1edbi h\u01a1n h\u00e0ng ngh\u00ecn l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp m\u1ed7i ng\u00e0y ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi vi\u1ec7c x\u1eed l\u00fd nhi\u1ec1u v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh cho trang web. Do \u0111\u00f3, b\u1ea1n c\u1ea7n \u0111\u1ebfn s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a Load Balancer.<\/strong> <\/p>\n\n\n\n<h2 id=\"Load_Balancer_l\u00e0_g\u00ec?_\"><strong>Load Balancer l\u00e0 g\u00ec?<\/strong> <\/h2>\n\n\n\n<p>\n  Load Balancer \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 qu\u00e1 tr\u00ecnh ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn m\u1ed9t nh\u00f3m m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3, gi\u00fap qu\u00e1 tr\u00ecnh x\u1eed l\u00fd m\u1ea1ng \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.\n<\/p>\n\n\n\n<p>   \u0110\u1ec3 \u0111\u1ea3m c\u00e1c y\u00eau c\u1ea7u truy v\u1ea5n \u0111\u01b0\u1ee3c x\u1eed l\u00fd, Load Balancer th\u1ef1c hi\u1ec7n vi\u1ec7c ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u truy v\u1ea5n \u0111\u1ebfn c\u00e1c m\u00e1y ch\u1ee7 x\u1eed l\u00fd ph\u00f9 h\u1ee3p. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap gi\u1ea3m th\u1eddi gian ph\u1ea3n h\u1ed3i v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u \u0111\u1ebfn v\u1edbi kh\u00e1ch h\u00e0ng. <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136-1.jpg\" alt=\"load-balancer-la-gi\" class=\"wp-image-14016\" title=\"\"><\/figure><\/div>\n\n\n\n<p>\n  Load Balancer gi\u00fap \u0111\u1ea3m b\u1ea3o cho c\u00e1c server kh\u00f4ng ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng qu\u00e1 m\u1ee9c. Trong tr\u01b0\u1eddng h\u1ee3p m\u1ed9t server \u0111\u01a1n l\u1ebb b\u1ecb h\u1ecfng, Load Balancer s\u1ebd chuy\u1ec3n h\u01b0\u1edbng truy c\u1eadp \u0111\u1ebfn server tr\u1ef1c tuy\u1ebfn kh\u00e1c.\n<\/p>\n\n\n\n<h3 id=\"C\u00e1c_th\u00e0nh_ph\u1ea7n_trong_h\u1ec7_th\u1ed1ng_Load_Balancer_\"><strong>C\u00e1c th\u00e0nh ph\u1ea7n trong h\u1ec7 th\u1ed1ng Load Balancer <\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>     M\u00e1y ch\u1ee7 <a href=\"https:\/\/tino.vn\/blog\/proxy-server-la-gi\/\" target=\"_blank\" class=\"rank-math-link\" rel=\"noopener\">Proxy<\/a> ho\u1eb7c c\u00e1c ch\u1ee9c n\u0103ng nh\u1eadn y\u00eau c\u1ea7u \u0111\u1ebfn    <\/li><li>     M\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u00fang ch\u1ee9c n\u0103ng    <\/li><li>     C\u01a1 s\u1edf d\u1eef li\u1ec7u trung t\u00e2m gi\u00fap t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 truy c\u1eadp.   <\/li><\/ul>\n\n\n\n<h3 id=\"Load_Balancer_ra_\u0111\u1eddi_khi_n\u00e0o?_\"><strong>Load Balancer ra \u0111\u1eddi khi n\u00e0o?<\/strong> <\/h3>\n\n\n\n<p>\n  N\u0103m 1990, kh\u00e1i ni\u1ec7m v\u1ec1 Load Balancer \u0111\u01b0\u1ee3c kh\u1edfi x\u01b0\u1edbng.\n<\/p>\n\n\n\n<p>\n  V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ADC (B\u1ed9 \u0111i\u1ec1u khi\u1ec3n ph\u00e2n ph\u1ed1i \u1ee9ng d\u1ee5ng), Load Balancer d\u1ea7n tr\u1edf th\u00e0nh m\u1ed9t ti\u1ec7n \u00edch cung c\u1ea5p kh\u1ea3 n\u0103ng truy c\u1eadp hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1ea3o m\u1eadt an to\u00e0n h\u01a1n.\n<\/p>\n\n\n\n<h3 id=\"Ph\u00e2n_lo\u1ea1i_Load_Balancer_\"><strong>Ph\u00e2n lo\u1ea1i Load Balancer<\/strong> <\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>D\u1ef1a tr\u00ean c\u1ea5u h\u00ecnh<\/strong>\n<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Load Balancer ph\u1ea7n m\u1ec1m<\/strong>: \u0110\u00e2y l\u00e0 nh\u1eefng \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t s\u1eb5n trong h\u1ec7 th\u1ed1ng. \u0110\u00e2y l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m \u0111\u1ec3 thay th\u1ebf cho ph\u1ea7n c\u1ee9ng.\n  <\/li><li><strong>Load Balancer ph\u1ea7n c\u1ee9ng<\/strong>: \u0110\u00e2y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng c\u1ed1 \u0111\u1ecbnh \u0111\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp tr\u00ean c\u00e1c m\u00e1y ch\u1ee7. S\u1ef1 h\u1ea1n ch\u1ebf v\u1ec1 t\u00ednh linh ho\u1ea1t v\u00e0 chi ph\u00ed cao nh\u01b0ng b\u00f9 l\u1ea1i kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn r\u1ea5t \u1ea5n t\u01b0\u1ee3ng.\n  <\/li><li><strong>Load Balancer \u1ea3o<\/strong>: \u0110\u00e2y l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa ch\u01b0\u01a1ng tr\u00ecnh Load Balancer ph\u1ea7n c\u1ee9ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ed9t m\u00e1y \u00e1o. Load Balancer m\u00f4 ph\u1ecfng theo c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng do ph\u1ea7n m\u1ec1m \u0111i\u1ec1u khi\u1ec3n. Ch\u01b0\u01a1ng tr\u00ecnh ph\u1ea7n c\u1ee9ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean m\u1ed9t m\u00e1y ch\u1ee7 \u1ea3o \u0111\u1ec3 chuy\u1ec3n h\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp. Load Balancer \u1ea3o c\u0169ng g\u1eb7p m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf v\u1ebb m\u1eb7t thi\u1ebfu qu\u1ea3n l\u00fd trung t\u00e2m, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng k\u00e9m h\u01a1n v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a b\u1ecb h\u1ea1n ch\u1ebf nhi\u1ec1u.\n  <\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136-2.jpg\" alt=\"load-balancer-la-gi\" class=\"wp-image-14017\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136-2.jpg 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136-2-300x161.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>D\u1ef1a tr\u00ean ch\u1ee9c n\u0103ng<\/strong>\n<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Load Balancer m\u1ea1ng \/ Load Balancer Layer 4 (L4)<\/strong>: D\u1ef1a tr\u00ean c\u00e1c bi\u1ebfn m\u1ea1ng nh\u01b0 \u0111\u1ecba ch\u1ec9 IP v\u00e0 c\u1ed5ng \u0111\u00edch, Load Balancer ph\u00e2n ph\u1ed1i c\u1ea5p \u0111\u1ed9 truy\u1ec1n t\u1ea3i th\u00f4ng qua c\u00e1c \u0111\u1ecbnh tuy\u1ebfn quy\u1ebft \u0111\u1ecbnh. Load Balancer Layer 4 kh\u00f4ng xem x\u00e9t b\u1ea5t k\u1ef3 tham s\u1ed1 n\u00e0o \u1edf c\u1ea5p \u1ee9ng d\u1ee5ng nh\u01b0 n\u1ed9i dung, d\u1eef li\u1ec7u cookie, ti\u00eau \u0111\u1ec1, v\u1ecb tr\u00ed, h\u00e0nh vi \u1ee9ng d\u1ee5ng,\u2026Th\u1ef1c hi\u1ec7n c\u00e1c chuy\u1ec3n d\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n ki\u1ec3m tra c\u00e1c g\u00f3i r\u1eddi. Load Balancer ch\u1ec9 quan t\u00e2m \u0111\u1ebfn th\u00f4ng tin l\u1edbp m\u1ea1ng v\u00e0 ch\u1ec9 \u0111\u1ecbnh h\u01b0\u1edbng l\u01b0u l\u01b0\u1ee3ng tr\u00ean c\u01a1 s\u1edf.\n  <\/li><li><strong>Load Balancer \u1ee9ng d\u1ee5ng \/ Load Balancer Layer 7 (L7)<\/strong>: N\u1eb1m \u1edf h\u1ea1ng cao nh\u1ea5t trong m\u00f4 h\u00ecnh OSI, Load Balancer Layer 7 ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u d\u1ef1a tr\u00ean c\u00e1c th\u00e1m s\u1ed1 tr\u00ean \u1ee9ng d\u1ee5ng. Ph\u1ea1m vi d\u1eef li\u1ec7u r\u1ed9ng bao g\u1ed3m ti\u00eau \u0111\u1ec1 HTTP v\u00e0 phi\u00ean SSL, ph\u00e2n ph\u1ed1i quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean c\u00e1c ph\u00e1t sinh quy\u1ebft \u0111\u1ecbnh t\u1eeb s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a m\u1ed9t s\u1ed1 bi\u1ebfn. V\u1edbi c\u00e1ch n\u00e0y, Load Balancer \u1ee9ng d\u1ee5ng ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng m\u00e1y ch\u1ee7 d\u1ef1a tr\u00ean c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 h\u00e0nh vi c\u00e1 nh\u00e2n.\n  <\/li><li><strong>Global Server Load Balancer (GSLB)<\/strong>: Xu h\u01b0\u1edbng l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn. GSLB th\u1ef1c hi\u1ec7n m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng c\u1ee7a c\u1ea3 L4 v\u00e0 L7 tr\u00ean c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u kh\u00e1c nhau, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n ph\u00e2n ph\u1ed1i t\u1ea3i hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. GSLB c\u0169ng gi\u00fap kh\u00f4i ph\u1ee5c nhanh v\u00e0 ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch.\n  <\/li><\/ul>\n\n\n\n<h2 id=\"Ch\u1ee9c_n\u0103ng_quan_tr\u1ecdng_c\u1ee7a_Load_Balancer__\"><strong>Ch\u1ee9c n\u0103ng quan tr\u1ecdng c\u1ee7a Load Balancer <\/strong> <\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a Load Balancer mang l\u1ea1i<\/strong>\n<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u0110\u1ed1i v\u1edbi trang web \/ \u1ee9ng d\u1ee5ng<\/strong>\n<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i<\/strong>: Khi c\u00e1c ch\u1ee9c n\u0103ng ho\u1ea1t \u0111\u1ed9ng b\u1ecb l\u1ed7i ho\u1eb7c hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng k\u00e9m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf v\u00e0 cung c\u1ea5p th\u00f4ng tin v\u1ec1 thi\u1ebft b\u1ecb c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng.\n  <\/li><li><strong>Hi\u1ec7u su\u1ea5t n\u00e2ng cao<\/strong>: Load Balancer gi\u1ea3m t\u1ea3i b\u1ed5 sung tr\u00ean m\u1ed9t m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng v\u00e0 ph\u1ea3n h\u1ed3i li\u1ec1n m\u1ea1ch, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m t\u1ed1t.\n  <\/li><li><strong>B\u1ea3o m\u1eadt<\/strong>: Load Balancer cung c\u1ea5p m\u1ed9t l\u1edbp cho trang web ho\u1eb7c \u1ee9ng d\u1ee5ng.\n  <\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136.png\" alt=\"load-balancer-la-gi\" class=\"wp-image-14018\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136.png 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1136-300x161.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u0110\u1ed1i v\u1edbi t\u1ed5 ch\u1ee9c<\/strong>\n<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>D\u1eef li\u1ec7u l\u1edbn<\/strong>: T\u1ea5t c\u1ea3 th\u00f4ng tin chi ti\u1ebft v\u1ec1 y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c t\u1ed5 h\u1ee3p th\u00e0nh m\u1ed9t l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn s\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng ph\u00e2n t\u00edch \u0111\u1ec3 th\u00fac \u0111\u1ea9y cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh \u0111\u00fang \u0111\u1eafn v\u00e0 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 cao.   <\/li><li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: Load Balancer th\u1ef1c hi\u1ec7n d\u1ec5 d\u00e0ng c\u00e1c thay \u0111\u1ed5i c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u00e1y ch\u1ee7 b\u1ea5t c\u1ee9 l\u00fac n\u00e0o m\u00e0 kh\u00f4ng g\u00e2y ra b\u1ea5t c\u1ee9 gi\u00e1n \u0111o\u1ea1n n\u00e0o.   <\/li><li><strong>Ph\u00e2n t\u00edch d\u1ef1 \u0111o\u00e1n<\/strong>: S\u1eed d\u1ee5ng Load Balancer, ph\u1ea7n m\u1ec1m c\u00f3 kh\u1ea3 n\u0103ng d\u1ef1 \u0111o\u00e1n nguy c\u01a1 t\u1eafc ngh\u1ebdn l\u01b0u l\u01b0\u1ee3ng tr\u01b0\u1edbc khi x\u1ea3y ra.   <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Nh\u1eefng thu\u1eadt to\u00e1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng Load Balancer<\/strong>\n<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n Round Robin<\/strong>\n<\/h4>\n\n\n\n<p>\n  S\u1eed d\u1ee5ng ch\u1ee9c n\u0103ng xoay v\u00f2ng c\u1ee7a Round Robin \u0111\u1ec3 \u0111i\u1ec1u ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c m\u00e1y ch\u1ee7 nh\u01b0 nhau. C\u00e1c truy v\u1ea5n s\u1ebd l\u1ea7n l\u01b0\u1ee3t \u0111\u01b0\u1ee3c g\u1eedi t\u1edbi c\u00e1c m\u00e1y ch\u1ee7 theo th\u1ee9 t\u1ef1 s\u1eafp x\u1ebfp.\n<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n Round Robin c\u00f3 tr\u1ecdng s\u1ed1 (Weighted Round Robin)<\/strong>\n<\/h4>\n\n\n\n<p>\n  Gi\u1ed1ng nh\u01b0 Round Robin, nh\u01b0ng \u0111\u1ed1i v\u1edbi m\u1ed9t m\u00e1y ch\u1ee7 c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd t\u1ed1t h\u01a1n s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u v\u00e0 nh\u1eadn nhi\u1ec1u h\u01a1n s\u1ed1 l\u01b0\u1ee3ng y\u00eau c\u1ea7u t\u1eeb Load Balancer.\n<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137.jpg\" alt=\"load-balancer-la-gi\" class=\"wp-image-14019\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137.jpg 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137-300x161.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n k\u1ebft n\u1ed1i \u00edt nh\u1ea5t (Least Connections) <\/strong>\n<\/h4>\n\n\n\n<p>\n  C\u00e1c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn c\u00e1c m\u00e1y ch\u1ee7 c\u00f3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u00edt nh\u1ea5t trong h\u1ec7 th\u1ed1ng. Gi\u00fap hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a, duy tr\u00ec t\u1ea3i \u0111\u1ed3ng \u0111\u1ec1u \u1edf t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7.\n<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n th\u1eddi gian ph\u1ea3n h\u1ed3i \u00edt nh\u1ea5t (Least Response Time)<\/strong>\n<\/h4>\n\n\n\n<p>\n  D\u1ef1a v\u00e0o th\u1eddi gian \u0111\u00e1p \u1ee9ng c\u1ee7a m\u00e1y ch\u1ee7, thu\u1eadt to\u00e1n \u01b0u ti\u00ean cho c\u00e1c m\u00e1y ch\u1ee7 c\u00f3 \u00edt l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u01a1n v\u00e0 th\u1eddi gian ph\u1ea3n h\u1ed3i \u00edt nh\u1ea5t.\n<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n IP Hash <\/strong>\n<\/h4>\n\n\n\n<p>\n  Thu\u1eadt to\u00e1n c\u00f3 ch\u1ee9c n\u0103ng ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 IP c\u1ee7a m\u00e1y kh\u00e1ch cho m\u1ed9t m\u00e1y ch\u1ee7 c\u1ed1 \u0111\u1ecbnh \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.\n<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thu\u1eadt to\u00e1n URL Hash <\/strong>\n<\/h4>\n\n\n\n<p>\n  Thu\u1eadt to\u00e1n n\u00e0y ph\u00e2n ph\u1ed1i c\u00e1c b\u1ea3n ghi \u0111\u1ed3ng nh\u1ea5t tr\u00ean nhi\u1ec1u trang web, h\u01b0\u1edbng t\u1ea5t c\u1ea3 s\u1ed1 l\u1ea7n \u0111\u1ecdc \u0111\u1ebfn trang web v\u00e0 s\u1edf h\u1eefu \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee5 th\u1ec3.\n<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Load Balancer c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u00e1c lo\u1ea1i giao th\u1ee9c n\u00e0o?<\/strong>\n<\/h3>\n\n\n\n<p><strong>HTTP<\/strong> \u2013 Chu\u1ea9n HTTP ch\u1ec9 \u0111\u1ea1o y\u00eau c\u1ea7u c\u01a1 ch\u1ebf tr\u00ean HTTP chu\u1ea9n, Load Balancer \u0111\u1eb7t X-Forwarded-For, X-Forwarded-Proto, ti\u00eau \u0111\u1ec1 X-Forwarded-Port \u0111\u1ec3 cung c\u1ea5p th\u00f4ng tin b\u1ed5 tr\u1ee3 cho c\u00e1c y\u00eau c\u1ea7u.\n<\/p>\n\n\n\n<p><strong>HTTPS <\/strong>\u2013 v\u1edbi ch\u1ee9c n\u0103ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 HTTP k\u00e8m v\u1edbi s\u1ef1 b\u1ed5 sung c\u1ee7a m\u00e3 h\u00f3a. M\u00e3 h\u00f3a \u0111\u01b0\u1ee3c x\u1eed l\u00fd theo m\u1ed9t trong hai c\u00e1ch, chuy\u1ec3n qua SSL duy tr\u00ec m\u00e3 h\u00f3a cho \u0111\u01b0\u1eddng \u0111\u1ebfn ph\u1ee5 tr\u1ee3 ho\u1eb7c ch\u1ea5m d\u1ee9t SSL \u0111\u1ec3 Load Balancer gi\u1ea3i m\u00e3 v\u00e0 g\u1eedi l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u1ebfn ph\u1ee5 tr\u1ee3 \u0111\u1ec3 ghi nh\u1eadn th\u00f4ng tin v\u00e0 th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng b\u1ea3o m\u1eadt.\n<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" width=\"700\" height=\"375\" src=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137-1.jpg\" alt=\"load-balancer-la-gi\" class=\"wp-image-14020\" title=\"\" srcset=\"https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137-1.jpg 700w, https:\/\/tino.vn\/blog\/wp-content\/uploads\/2021\/05\/word-image-1137-1-300x161.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure><\/div>\n\n\n\n<p><strong>TCP<\/strong> \u2013 N\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c HTTP v\u00e0 HTTPS, s\u1eed d\u1ee5ng TCP \u0111\u1ec3 tri\u1ec3n khai v\u1edbi Load Balancer. C\u00f3 th\u1ec3 hi\u1ec3u, l\u01b0\u1ee3ng truy c\u1eadp v\u00e0o m\u1ed9t c\u1ee5m c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c lan truy\u1ec1n v\u00e0 ph\u00e2n ph\u1ed1i tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 trong h\u1ec7 th\u1ed1ng.\n<\/p>\n\n\n\n<p><strong>UDP<\/strong> \u2013 M\u1ed9t s\u1ed1 Load Balancer \u0111\u01b0\u1ee3c th\u00eam giao th\u1ee9c Core Internet nh\u01b0 DNS v\u00e0 syslog s\u1eed d\u1ee5ng UDP\n<\/p>\n\n\n\n<p>\n  Load Balancer ch\u1eafc ch\u1eafn l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p c\u1ef1c k\u1ef3 quan tr\u1ecdng cho c\u00e1c qu\u00e1 tr\u00ecnh x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn. Vi\u1ec7c v\u1eadn h\u00e0nh Load Balancer c\u1ea7n \u0111\u1ebfn y\u1ebfu t\u1ed1 chuy\u00ean m\u00f4n cao, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i hi\u1ec7u qu\u1ea3 nh\u1ea5t.\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Load Balancer<\/strong>\n<\/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=\"N\u1ebfu_kh\u00f4ng_s\u1eed_d\u1ee5ng_Load_Balancer_cho_trang_web_ho\u1eb7c_\u1ee9ng_d\u1ee5ng_c\u00f3_g\u00e2y_ra_v\u1ea5n_\u0111\u1ec1_g\u00ec_kh\u00f4ng?_\">N\u1ebfu kh\u00f4ng s\u1eed d\u1ee5ng Load Balancer cho trang web ho\u1eb7c \u1ee9ng d\u1ee5ng c\u00f3 g\u00e2y ra v\u1ea5n \u0111\u1ec1 g\u00ec 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>B\u1ea1n s\u1ebd g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 kh\u00f4ng th\u1ec3 \u0111\u1ea3m b\u1ea3o x\u1eed l\u00fd \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng traffic c\u1ee7a m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng l\u1edbn truy c\u1eadp v\u00e0o trang web. \u0110\u1ed1i v\u1edbi vi\u1ec7c kinh doanh, n\u1ebfu trang web g\u1eb7p s\u1ef1 c\u1ed1 nh\u01b0ng kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng \u00e1n thay th\u1ebf s\u1ebd g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng kinh doanh, tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng, t\u1ed5n th\u1ea5t v\u1ec1 doanh thu.<\/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=\"_\u0110\u1ec3_s\u1eed_d\u1ee5ng_Load_Balancer_hi\u1ec7u_qu\u1ea3_c\u1ea7n_nh\u1eefng_y\u00eau_c\u1ea7u_ch\u1ee7_y\u1ebfu_g\u00ec?_\"> \u0110\u1ec3 s\u1eed d\u1ee5ng Load Balancer hi\u1ec7u qu\u1ea3 c\u1ea7n nh\u1eefng y\u00eau c\u1ea7u ch\u1ee7 y\u1ebfu g\u00ec? <\/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>Load Balancer c\u00f3 nhi\u1ec1u m\u00e1y ch\u1ee7 ho\u1ea1t \u0111\u1ed9ng n\u00ean \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i c\u00f3 s\u1ef1 am hi\u1ec3u v\u00e0 \u0111\u00f2i h\u1ecfi t\u00ednh chuy\u00ean m\u00f4n, k\u1ef9 thu\u1eadt cao. V\u00ec khi s\u1edf h\u1eefu nhi\u1ec1u m\u00e1y ch\u1ee7 th\u00ec vi\u1ec7c qu\u1ea3n tr\u1ecb , tri\u1ec3n khai v\u00e0 b\u1ea3o tr\u00ec c\u00e0ng tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p v\u00e0 nhi\u1ec1u kh\u00f3 kh\u0103n h\u01a1n g\u1ea5p nhi\u1ec1u l\u1ea7n.<\/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=\"_\u01afu_\u0111i\u1ec3m_c\u1ee7a_Load_Balancer_Round_Robin_l\u00e0_g\u00ec?_\"> \u01afu \u0111i\u1ec3m c\u1ee7a Load Balancer Round Robin l\u00e0 g\u00ec? <\/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>\u0110i\u1ec3m m\u1ea1nh c\u1ee7a Round Robin l\u00e0 thao t\u00e1c th\u1ef1c hi\u1ec7n c\u1ef1c k\u1ef3 \u0111\u01a1n gi\u1ea3n, tuy nhi\u00ean kh\u00f4ng ph\u1ea3i n\u00f3 l\u00fac n\u00e0o c\u0169ng ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp hi\u1ec7u qu\u1ea3 v\u00e0 ch\u00ednh x\u00e1c.\u0110a s\u1ed1 Load Balancer cho r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y ch\u1ee7 \u0111\u1ec1u gi\u1ed1ng nhau hi\u1ec7n \u0111ang ho\u1ea1t \u0111\u1ed9ng, c\u00f9ng x\u1eed l\u00fd v\u00e0 c\u00f3 c\u00f9ng dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef, t\u00ednh to\u00e1n.<\/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=\"M\u00e1y_ch\u1ee7_Reverse_Proxy_l\u00e0_g\u00ec?_\">M\u00e1y ch\u1ee7 Reverse Proxy l\u00e0 g\u00ec? <\/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>Reverse Proxy c\u00f2n g\u1ecdi l\u00e0 proxy ng\u01b0\u1ee3c, th\u01b0\u1eddng l\u00e0 t\u00ednh n\u0103ng c\u1ee7a gi\u1ea3i ph\u00e1p c\u00e2n b\u1eb1ng t\u1ea3i gi\u1eefa m\u00e1y ch\u1ee7 trang web v\u00e0 ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 proxy chuy\u1ec3n ti\u1ebfp. 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Load Balancer \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":24157,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[6025],"class_list":["post-14014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-load-balancer-la-gi"],"_links":{"self":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14014","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\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/comments?post=14014"}],"version-history":[{"count":1,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14014\/revisions"}],"predecessor-version":[{"id":114646,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/posts\/14014\/revisions\/114646"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media\/24157"}],"wp:attachment":[{"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/media?parent=14014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/categories?post=14014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tino.vn\/blog\/wp-json\/wp\/v2\/tags?post=14014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}