{"id":477036,"date":"2023-08-09T09:06:26","date_gmt":"2023-08-09T09:06:26","guid":{"rendered":""},"modified":"2023-09-05T11:13:54","modified_gmt":"2023-09-05T11:13:54","slug":"edge-caching","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/edge-caching\/","title":{"rendered":"B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh"},"content":{"rendered":"<p>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c ph\u00e2n ph\u1ed1i n\u1ed9i dung web t\u1edbi ng\u01b0\u1eddi d\u00f9ng. N\u00f3 l\u00e0 th\u00e0nh ph\u1ea7n then ch\u1ed1t c\u1ee7a M\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN) v\u00e0 l\u00e0 c\u00f4ng ngh\u1ec7 ch\u00ednh \u0111\u1ec3 gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ed9 tr\u1ec5 trong ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 internet.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c c\u1ee7a b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN), b\u1eaft \u0111\u1ea7u c\u00f3 \u0111\u00e0 ph\u00e1t tri\u1ec3n v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1990. Akamai Technologies, \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp v\u00e0o n\u0103m 1998, l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ty \u0111\u1ea7u ti\u00ean gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m n\u1ed9i dung b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ebfn g\u1ea7n h\u01a1n v\u1edbi ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i, t\u1eeb \u0111\u00f3 c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1ch th\u1ee9c ph\u00e2n ph\u1ed1i n\u1ed9i dung web. Thu\u1eadt ng\u1eef \u201cb\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean\u201d b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u01b0\u1eddng xuy\u00ean h\u01a1n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 2000, khi nhu c\u1ea7u ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u c\u1ee5c b\u1ed9 tr\u1edf n\u00ean r\u00f5 r\u00e0ng c\u00f9ng v\u1edbi s\u1ef1 m\u1edf r\u1ed9ng c\u01a1 s\u1edf ng\u01b0\u1eddi d\u00f9ng Internet v\u00e0 nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 ph\u00e2n ph\u1ed1i n\u1ed9i dung hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cao.<\/p>\n<h2>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh: T\u00ecm hi\u1ec3u s\u00e2u h\u01a1n<\/h2>\n<p>V\u1ec1 c\u1ed1t l\u00f5i, b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean l\u00e0 l\u01b0u tr\u1eef c\u00e1c b\u1ea3n sao d\u1eef li\u1ec7u\u2014c\u00f3 th\u1ec3 l\u00e0 h\u00ecnh \u1ea3nh, video, trang HTML ho\u1eb7c c\u00e1c lo\u1ea1i n\u1ed9i dung kh\u00e1c\u2014\u1edf &#039;bi\u00ean&#039; c\u1ee7a m\u1ea1ng, t\u1ee9c l\u00e0 g\u1ea7n ng\u01b0\u1eddi d\u00f9ng h\u01a1n. B\u1eb1ng c\u00e1ch \u0111\u00f3, n\u00f3 s\u1ebd gi\u1ea3m nhu c\u1ea7u di chuy\u1ec3n to\u00e0n b\u1ed9 y\u00eau c\u1ea7u c\u1ee7a m\u1ed7i ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn m\u00e1y ch\u1ee7 ban \u0111\u1ea7u, t\u1eeb \u0111\u00f3 gi\u1ea3m \u0111\u1ed9 tr\u1ec5, t\u1eafc ngh\u1ebdn giao th\u00f4ng v\u00e0 t\u1ea3i t\u1ed5ng th\u1ec3 c\u1ee7a m\u00e1y ch\u1ee7.<\/p>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p \u0111i\u1ec3n h\u00ecnh, khi ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0a ra y\u00eau c\u1ea7u v\u1ec1 m\u1ed9t s\u1ed1 n\u1ed9i dung web nh\u1ea5t \u0111\u1ecbnh, m\u00e1y ch\u1ee7 bi\u00ean g\u1ea7n nh\u1ea5t c\u00f3 n\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m s\u1ebd cung c\u1ea5p n\u1ed9i dung \u0111\u00f3. N\u1ebfu m\u00e1y ch\u1ee7 bi\u00ean kh\u00f4ng c\u00f3 n\u1ed9i dung, n\u00f3 s\u1ebd t\u00ecm n\u1ea1p n\u1ed9i dung t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c, l\u01b0u tr\u1eef m\u1ed9t b\u1ea3n sao r\u1ed3i g\u1eedi cho ng\u01b0\u1eddi d\u00f9ng. Sau \u0111\u00f3, c\u00e1c y\u00eau c\u1ea7u t\u01b0\u01a1ng t\u1ef1 cho c\u00f9ng m\u1ed9t n\u1ed9i dung c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u1ef1c ti\u1ebfp t\u1eeb m\u00e1y ch\u1ee7 bi\u00ean n\u00e0y.<\/p>\n<h2>T\u00ecm hi\u1ec3u ho\u1ea1t \u0111\u1ed9ng b\u00ean trong c\u1ee7a Edge Caching<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ed9t m\u1ea1ng m\u00e1y ch\u1ee7 ph\u00e2n t\u00e1n, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u00e1y ch\u1ee7 bi\u00ean ho\u1eb7c n\u00fat. C\u00e1c m\u00e1y ch\u1ee7 n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed chi\u1ebfn l\u01b0\u1ee3c \u1edf nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau\u2014c\u00f3 th\u1ec3 l\u00e0 \u1edf th\u00e0nh ph\u1ed1, m\u1ea1ng ISP ho\u1eb7c trung t\u00e2m d\u1eef li\u1ec7u\u2014g\u1ea7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<p>Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m:<\/p>\n<ol>\n<li><strong>Y\u00eau c\u1ea7u \u0111\u1ecbnh tuy\u1ebfn:<\/strong> Khi ng\u01b0\u1eddi d\u00f9ng g\u1eedi y\u00eau c\u1ea7u, c\u01a1 ch\u1ebf \u0111\u1ecbnh tuy\u1ebfn d\u1ef1a tr\u00ean DNS s\u1ebd x\u00e1c \u0111\u1ecbnh m\u00e1y ch\u1ee7 bi\u00ean g\u1ea7n nh\u1ea5t.<\/li>\n<li><strong>Tra c\u1ee9u n\u1ed9i dung:<\/strong> M\u00e1y ch\u1ee7 bi\u00ean ki\u1ec3m tra xem n\u00f3 c\u00f3 phi\u00ean b\u1ea3n \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ee7a n\u1ed9i dung \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u hay kh\u00f4ng.<\/li>\n<li><strong>Ph\u00e2n ph\u1ed1i n\u1ed9i dung:<\/strong> N\u1ebfu n\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m, m\u00e1y ch\u1ee7 bi\u00ean s\u1ebd cung c\u1ea5p n\u1ed9i dung \u0111\u00f3 cho ng\u01b0\u1eddi d\u00f9ng. N\u1ebfu kh\u00f4ng, n\u00f3 s\u1ebd truy xu\u1ea5t n\u1ed9i dung t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c, l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ec3 s\u1eed d\u1ee5ng trong t\u01b0\u01a1ng lai v\u00e0 cung c\u1ea5p cho ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<\/ol>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Edge Caching<\/h2>\n<ul>\n<li><strong>Gi\u1ea3m \u0111\u1ed9 tr\u1ec5:<\/strong> B\u1eb1ng c\u00e1ch l\u01b0u tr\u1eef n\u1ed9i dung g\u1ea7n h\u01a1n v\u1edbi ng\u01b0\u1eddi d\u00f9ng, b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian di chuy\u1ec3n kh\u1ee9 h\u1ed3i, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m nhanh h\u01a1n, li\u1ec1n m\u1ea1ch h\u01a1n.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> B\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean cho ph\u00e9p c\u00e1c d\u1ecbch v\u1ee5 x\u1eed l\u00fd nhi\u1ec1u y\u00eau c\u1ea7u h\u01a1n b\u1eb1ng c\u00e1ch ph\u00e2n ph\u1ed1i t\u1ea3i tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7 bi\u00ean.<\/li>\n<li><strong>\u0110\u1ed9 tin c\u1eady:<\/strong> Ngay c\u1ea3 khi m\u00e1y ch\u1ee7 g\u1ed1c ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, n\u1ed9i dung \u0111\u01b0\u1ee3c l\u01b0u trong b\u1ed9 nh\u1edb \u0111\u1ec7m \u1edf bi\u00ean v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c cung c\u1ea5p cho ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li><strong>Gi\u1ea3m chi ph\u00ed b\u0103ng th\u00f4ng:<\/strong> B\u1eb1ng c\u00e1ch gi\u1ea3m l\u01b0\u1ee3ng truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1eddng d\u00e0i, b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed b\u0103ng th\u00f4ng.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh<\/h2>\n<p>Ch\u1ee7 y\u1ebfu c\u00f3 hai lo\u1ea1i b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh:<\/p>\n<ul>\n<li><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u1ea9y:<\/strong> M\u00e1y ch\u1ee7 g\u1ed1c ch\u1ee7 \u0111\u1ed9ng \u0111\u1ea9y n\u1ed9i dung \u0111\u1ebfn m\u00e1y ch\u1ee7 bi\u00ean. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho n\u1ed9i dung ph\u1ed5 bi\u1ebfn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean.<\/li>\n<li><strong>K\u00e9o b\u1ed9 nh\u1edb \u0111\u1ec7m:<\/strong> M\u00e1y ch\u1ee7 bi\u00ean ch\u1ec9 l\u1ea5y n\u1ed9i dung t\u1eeb m\u00e1y ch\u1ee7 g\u1ed1c khi ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho n\u1ed9i dung \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n ho\u1eb7c n\u1ed9i dung d\u00e0i.<\/li>\n<\/ul>\n<h2>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, th\u00e1ch th\u1ee9c v\u00e0 gi\u1ea3i ph\u00e1p c\u1ee7a Edge Caching<\/h2>\n<p>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh r\u1ea5t quan tr\u1ecdng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p:<\/p>\n<ul>\n<li><strong>Truy\u1ec1n ph\u00e1t video:<\/strong> \u0110\u1ec3 cung c\u1ea5p ch\u1ea5t l\u01b0\u1ee3ng cao, truy\u1ec1n ph\u00e1t kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/li>\n<li><strong>Th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed:<\/strong> \u0110\u1ec3 t\u1ea3i nhanh h\u00ecnh \u1ea3nh v\u00e0 m\u00f4 t\u1ea3 s\u1ea3n ph\u1ea9m.<\/li>\n<li><strong>Ch\u01a1i game:<\/strong> \u0110\u1ec3 t\u1ea3i xu\u1ed1ng v\u00e0 c\u1eadp nh\u1eadt tr\u00f2 ch\u01a1i nhanh ch\u00f3ng.<\/li>\n<\/ul>\n<p>Tuy nhi\u00ean, b\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh c\u00f3 nh\u1eefng th\u00e1ch th\u1ee9c:<\/p>\n<ul>\n<li><strong>S\u1ef1 li\u00ean k\u1ebft b\u1ed9 nh\u1edb cache:<\/strong> Vi\u1ec7c \u0111\u1ea3m b\u1ea3o n\u1ed9i dung tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 bi\u00ean \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt c\u00f3 th\u1ec3 kh\u00f3 kh\u0103n. C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m c\u00e0i \u0111\u1eb7t th\u1eddi gian h\u1ebft h\u1ea1n b\u1ed9 \u0111\u1ec7m ho\u1eb7c s\u1eed d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c v\u00f4 hi\u1ec7u h\u00f3a b\u1ed9 \u0111\u1ec7m.<\/li>\n<li><strong>Thi\u1ebfu b\u1ed9 nh\u1edb \u0111\u1ec7m:<\/strong> Khi y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb b\u1ed9 \u0111\u1ec7m, d\u1eabn \u0111\u1ebfn vi\u1ec7c chuy\u1ec3n \u0111\u1ebfn m\u00e1y ch\u1ee7 g\u1ed1c. C\u00e1c gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn chi\u1ebfn l\u01b0\u1ee3c b\u1ed9 nh\u1edb \u0111\u1ec7m tr\u01b0\u1edbc v\u00e0 b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1ef1 \u0111o\u00e1n th\u00f4ng minh.<\/li>\n<\/ul>\n<h2>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh so v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>Th\u00f4ng s\u1ed1<\/th>\n<th>B\u1ed9 nh\u1edb \u0111\u1ec7m c\u1ea1nh<\/th>\n<th>B\u1ed9 nh\u1edb \u0111\u1ec7m truy\u1ec1n th\u1ed1ng<\/th>\n<th>B\u1ed9 nh\u1edb \u0111\u1ec7m \u0111\u00e1m m\u00e2y<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>V\u1ecb tr\u00ed c\u1ee7a d\u1eef li\u1ec7u<\/td>\n<td>G\u1ea7n g\u0169i v\u1edbi ng\u01b0\u1eddi d\u00f9ng (bi\u00ean m\u1ea1ng)<\/td>\n<td>M\u00e1y ch\u1ee7 g\u1ed1c ho\u1eb7c thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng<\/td>\n<td>M\u00e1y ch\u1ee7 \u0111\u00e1m m\u00e2y t\u1eadp trung<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 tr\u1ec5<\/td>\n<td>Th\u1ea5p<\/td>\n<td>Trung b\u00ecnh \u0111\u1ebfn cao<\/td>\n<td>Ph\u1ee5 thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch v\u1edbi trung t\u00e2m d\u1eef li\u1ec7u \u0111\u00e1m m\u00e2y<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/td>\n<td>Cao<\/td>\n<td>Ph\u1ee5 thu\u1ed9c v\u00e0o dung l\u01b0\u1ee3ng m\u00e1y ch\u1ee7<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>Tr\u1ecb gi\u00e1<\/td>\n<td>Trung b\u00ecnh (do c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ph\u00e2n t\u00e1n)<\/td>\n<td>Th\u1ea5p (n\u1ebfu tr\u00ean thi\u1ebft b\u1ecb ng\u01b0\u1eddi d\u00f9ng)<\/td>\n<td>Cao (d\u1ef1a tr\u00ean gi\u00e1 l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Xu h\u01b0\u1edbng t\u01b0\u01a1ng lai c\u1ee7a Edge Caching<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean g\u1eafn li\u1ec1n v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 5G, Internet of Things (IoT) v\u00e0 \u0111i\u1ec7n to\u00e1n bi\u00ean. Xu h\u01b0\u1edbng ng\u00e0y c\u00e0ng h\u01b0\u1edbng t\u1edbi nhi\u1ec1u tr\u00ed th\u00f4ng minh h\u01a1n, bao g\u1ed3m b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1ef1 \u0111o\u00e1n do AI \u0111i\u1ec1u khi\u1ec3n, x\u1eed l\u00fd d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c v\u00e0 ph\u00e2n ph\u1ed1i n\u1ed9i dung \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a.<\/p>\n<h2>B\u1ed9 \u0111\u1ec7m \u1ea9n v\u00e0 m\u00e1y ch\u1ee7 proxy<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean. Ch\u00fang \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m \u1edf c\u1ea5p \u0111\u1ed9 proxy. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i trong m\u1ed9t t\u1ed5 ch\u1ee9c l\u1edbn n\u01a1i nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u c\u00f9ng m\u1ed9t n\u1ed9i dung, cho ph\u00e9p ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/cdn\/what-is-edge-caching\/\" target=\"_new\" rel=\"noopener nofollow\">H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u v\u1ec1 CDN Edge Caching<\/a><\/li>\n<li><a href=\"https:\/\/aws.amazon.com\/cloudfront\/edge-caching\/\" target=\"_new\" rel=\"noopener nofollow\">Amazon CloudFront \u2013 C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 nh\u1edb \u0111\u1ec7m bi\u00ean<\/a><\/li>\n<li><a href=\"https:\/\/www.akamai.com\/us\/en\/\" target=\"_new\" rel=\"noopener nofollow\">C\u00f4ng ngh\u1ec7 Akamai<\/a><\/li>\n<\/ul>\n<p><em>L\u01b0u \u00fd: B\u00e0i vi\u1ebft n\u00e0y \u0111\u01b0\u1ee3c vi\u1ebft cho OneProxy (oneproxy.pro), nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy h\u00e0ng \u0111\u1ea7u.<\/em><\/p>","protected":false},"featured_media":477037,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477036","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Edge Caching: A Comprehensive Look into a Decentralized Internet<\/mark>","faq_items":[{"question":"What is Edge Caching?","answer":"<p>Edge caching is a method that optimizes the delivery of web content by storing copies of data\u2014be it images, videos, HTML pages, or other types of content\u2014at 'the edge' of the network, i.e., closer to the user. By doing so, it reduces latency, traffic congestion, and overall server load.<\/p>"},{"question":"When did Edge Caching originate?","answer":"<p>Edge caching has its roots in the evolution of content delivery networks (CDNs), which began to gain momentum in the late 1990s. The term \"edge caching\" started to be used more frequently from the early 2000s, as the need for localized data delivery became evident with the expansion of the Internet's user base.<\/p>"},{"question":"How does Edge Caching work?","answer":"<p>Edge caching operates on a distributed network of servers, also known as edge servers or nodes. When a user sends a request, a DNS-based routing mechanism determines the nearest edge server. The edge server checks if it has a cached version of the requested content. If the content is cached, the edge server delivers it to the user. If not, it retrieves the content from the origin server, caches it for future use, and delivers it to the user.<\/p>"},{"question":"What are the key features of Edge Caching?","answer":"<p>The key features of edge caching include reduced latency by storing content closer to the user, scalability by distributing load across multiple servers, reliability even if an origin server goes down, and reduced bandwidth costs by minimizing long-distance data transmission.<\/p>"},{"question":"What types of Edge Caching exist?","answer":"<p>There are primarily two types of edge caching: Push Caching, where the origin server pushes content to edge servers proactively, and Pull Caching, where edge servers pull content from the origin server only when requested by a user.<\/p>"},{"question":"What are the challenges of Edge Caching and their solutions?","answer":"<p>Challenges of edge caching include cache coherency, where ensuring the content on edge servers is up-to-date can be difficult, and cache misses, where a user's request cannot be fulfilled from the cache. Solutions include setting cache expiration times or using a cache invalidation strategy for cache coherency, and intelligent pre-caching and predictive caching strategies for cache misses.<\/p>"},{"question":"What is the future of Edge Caching?","answer":"<p>The future of edge caching is entwined with the growth of 5G technology, Internet of Things (IoT), and edge computing. The trend is towards more intelligence at the edge, including AI-driven predictive caching, real-time data processing, and personalized content delivery.<\/p>"},{"question":"How are proxy servers associated with Edge Caching?","answer":"<p>Proxy servers can play a pivotal role in edge caching. They act as intermediaries between the client and the server, facilitating caching at the proxy level. This can be particularly beneficial in a large organization where many users might request the same content, enabling quick and efficient data delivery.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/477036\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/477037"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=477036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}