M\u1ed8T c\u1ed5ng v\u00e0o<\/strong> trong b\u1ed1i c\u1ea3nh m\u1ea1ng proxy \u0111\u00f3ng vai tr\u00f2 l\u00e0 th\u00e0nh ph\u1ea7n trung gian quan tr\u1ecdng t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c giao ti\u1ebfp gi\u1eefa c\u00e1c ph\u00e2n \u0111o\u1ea1n m\u1ea1ng ho\u1eb7c giao th\u1ee9c kh\u00e1c nhau. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t "c\u1ed5ng" cho ph\u00e9p d\u1eef li\u1ec7u ch\u1ea3y gi\u1eefa c\u00e1c m\u1ea1ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c ho\u1eb7c ki\u1ebfn tr\u00fac kh\u00e1c nhau, v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 d\u1ecbch gi\u1eefa ch\u00fang khi c\u1ea7n thi\u1ebft.<\/p>\n Theo thu\u1eadt ng\u1eef k\u1ef9 thu\u1eadt h\u01a1n, m\u1ed9t c\u1ed5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 m\u1ed9t n\u00fat m\u1ea1ng \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m truy c\u1eadp \u0111\u1ebfn m\u1ed9t m\u1ea1ng kh\u00e1c. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 thi\u1ebft b\u1ecb l\u1edbp 7 (l\u1edbp \u1ee9ng d\u1ee5ng), ngh\u0129a l\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng \u1edf c\u1ea5p \u0111\u1ed9 cao h\u01a1n trong m\u00f4 h\u00ecnh OSI so v\u1edbi c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch truy\u1ec1n th\u1ed1ng, th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp 2 (li\u00ean k\u1ebft d\u1eef li\u1ec7u) v\u00e0 l\u1edbp 3 (m\u1ea1ng).<\/p>\n C\u1ed5ng t\u01b0\u01a1ng t\u00e1c ch\u1eb7t ch\u1ebd v\u1edbi proxy, l\u00e0 c\u00e1c thi\u1ebft b\u1ecb ho\u1eb7c d\u1ecbch v\u1ee5 ho\u1ea1t \u0111\u1ed9ng thay m\u1eb7t cho m\u00e1y kh\u00e1ch ho\u1eb7c m\u00e1y ch\u1ee7 \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i. T\u01b0\u01a1ng t\u00e1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1c th\u1ea3o nh\u01b0 sau:<\/p>\n D\u1ecbch d\u1eef li\u1ec7u<\/strong>: Gateway c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i giao th\u1ee9c, cho ph\u00e9p giao ti\u1ebfp gi\u1eefa c\u00e1c lo\u1ea1i m\u1ea1ng kh\u00e1c nhau. V\u00ed d\u1ee5, n\u1ebfu m\u1ed9t m\u00e1y kh\u00e1ch tr\u00ean m\u1ea1ng TCP\/IP mu\u1ed1n giao ti\u1ebfp v\u1edbi m\u00e1y ch\u1ee7 b\u1eb1ng giao th\u1ee9c kh\u00e1c (nh\u01b0 UDP ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 h\u1ec7 th\u1ed1ng c\u0169), gateway s\u1ebd d\u1ecbch c\u00e1c y\u00eau c\u1ea7u v\u00e0 ph\u1ea3n h\u1ed3i m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p.<\/p>\n<\/li>\n D\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT)<\/strong>: C\u00e1c c\u1ed5ng th\u01b0\u1eddng tri\u1ec3n khai NAT, cho ph\u00e9p nhi\u1ec1u thi\u1ebft b\u1ecb tr\u00ean m\u1ea1ng c\u1ee5c b\u1ed9 chia s\u1ebb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 qu\u1ea3n l\u00fd kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 IP v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n T\u00ednh n\u0103ng b\u1ea3o m\u1eadt<\/strong>:C\u1ed5ng c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1c ch\u1ee9c n\u0103ng t\u01b0\u1eddng l\u1eeda, \u0111\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn v\u00e0 \u0111i \u0111\u00e1p \u1ee9ng c\u00e1c ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp.<\/p>\n<\/li>\n Qu\u1ea3n l\u00fd giao th\u00f4ng<\/strong>:C\u1ed5ng c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd v\u00e0 t\u1ed1i \u01b0u h\u00f3a l\u01b0u l\u01b0\u1ee3ng th\u00f4ng qua c\u00e1c k\u1ef9 thu\u1eadt c\u00e2n b\u1eb1ng t\u1ea3i, \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5.<\/p>\n<\/li>\n Ghi nh\u1eadt k\u00fd v\u00e0 gi\u00e1m s\u00e1t<\/strong>:C\u1ed5ng th\u01b0\u1eddng ghi l\u1ea1i d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ec3 theo d\u00f5i, h\u1ed7 tr\u1ee3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t.<\/p>\n<\/li>\n<\/ol>\n Khi c\u1ea5u h\u00ecnh c\u1ed5ng trong m\u1ea1ng proxy, c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn m\u1ed9t s\u1ed1 tham s\u1ed1 v\u00e0 \u0111\u1ecbnh d\u1ea1ng ch\u00ednh sau:<\/p>\n \u0110\u1ecba ch\u1ec9 IP<\/strong>: \u0110\u1ecba ch\u1ec9 IP c\u1ee7a c\u1ed5ng r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn l\u01b0u l\u01b0\u1ee3ng. \u0110\u1ecba ch\u1ec9 n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111\u00edch \u0111\u1ebfn cho c\u00e1c g\u00f3i d\u1eef li\u1ec7u \u0111i.<\/p>\n<\/li>\n Lo\u1ea1i giao th\u1ee9c<\/strong>:Lo\u1ea1i giao th\u1ee9c m\u00e0 c\u1ed5ng h\u1ed7 tr\u1ee3 (v\u00ed d\u1ee5: HTTP, HTTPS, FTP, v.v.) c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn ch\u1ee9c n\u0103ng c\u1ee7a c\u1ed5ng.<\/p>\n<\/li>\n B\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn<\/strong>:C\u00e1c b\u1ea3ng n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1ch c\u00e1c g\u00f3i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp, bao g\u1ed3m b\u01b0\u1edbc ti\u1ebfp theo cho d\u1eef li\u1ec7u v\u00e0 s\u1ed1 li\u1ec7u \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a tuy\u1ebfn \u0111\u01b0\u1eddng.<\/p>\n<\/li>\n Danh s\u00e1ch ki\u1ec3m so\u00e1t truy c\u1eadp (ACL)<\/strong>: Nh\u1eefng \u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u01b0u l\u01b0\u1ee3ng n\u00e0o \u0111\u01b0\u1ee3c ph\u00e9p ho\u1eb7c b\u1ecb t\u1eeb ch\u1ed1i qua c\u1ed5ng, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n C\u00e0i \u0111\u1eb7t th\u1eddi gian ch\u1edd<\/strong>: C\u00e1c tham s\u1ed1 x\u00e1c \u0111\u1ecbnh th\u1eddi gian phi\u00ean ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi k\u1ebft th\u00fac, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c ph\u00e2n b\u1ed5 t\u00e0i nguy\u00ean.<\/p>\n<\/li>\n<\/ul>\n H\u00e3y xem x\u00e9t m\u1ed9t k\u1ecbch b\u1ea3n \u0111\u01a1n gi\u1ea3n trong \u0111\u00f3 m\u1ed9t m\u1ea1ng c\u00f4ng ty mu\u1ed1n cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng n\u1ed9i b\u1ed9 c\u1ee7a m\u00ecnh truy c\u1eadp internet m\u1ed9t c\u00e1ch an to\u00e0n trong khi c\u0169ng ki\u1ec3m so\u00e1t v\u00e0 gi\u00e1m s\u00e1t quy\u1ec1n truy c\u1eadp \u0111\u00f3. M\u1ed9t c\u1ed5ng s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 qu\u1ea3n l\u00fd t\u01b0\u01a1ng t\u00e1c n\u00e0y.<\/p>\n Y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng<\/strong>: Ng\u01b0\u1eddi d\u00f9ng tr\u00ean m\u1ea1ng n\u1ed9i b\u1ed9 (192.168.1.10) c\u1ed1 g\u1eafng truy c\u1eadp m\u1ed9t trang web (v\u00ed d\u1ee5: www.example.com).<\/p>\n<\/li>\n Chuy\u1ec3n h\u01b0\u1edbng giao th\u00f4ng<\/strong>: Y\u00eau c\u1ea7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn c\u1ed5ng (192.168.1.1). C\u1ed5ng ki\u1ec3m tra b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a n\u00f3 v\u00e0 th\u1ea5y r\u1eb1ng y\u00eau c\u1ea7u n\u00ean \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn internet.<\/p>\n<\/li>\n Qu\u00e1 tr\u00ecnh NAT<\/strong>: C\u1ed5ng th\u1ef1c hi\u1ec7n NAT, thay th\u1ebf \u0111\u1ecba ch\u1ec9 IP ngu\u1ed3n (192.168.1.10) b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP c\u00f4ng khai c\u1ee7a ri\u00eang n\u00f3 (203.0.113.5). \u0110i\u1ec1u n\u00e0y l\u00e0m cho c\u00f3 v\u1ebb nh\u01b0 y\u00eau c\u1ea7u \u0111\u1ebfn t\u1eeb ch\u00ednh c\u1ed5ng.<\/p>\n<\/li>\n X\u1eed l\u00fd giao th\u1ee9c<\/strong>:N\u1ebfu y\u00eau c\u1ea7u l\u00e0 HTTP, c\u1ed5ng c\u0169ng c\u00f3 th\u1ec3 kh\u1edfi t\u1ea1o k\u1ebft n\u1ed1i an to\u00e0n n\u1ebfu c\u1ea7n, \u0111\u00f3ng g\u00f3i y\u00eau c\u1ea7u theo \u0111\u00f3.<\/p>\n<\/li>\n X\u1eed l\u00fd ph\u1ea3n h\u1ed3i<\/strong>:Khi nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ea3n h\u1ed3i t\u1eeb trang web, c\u1ed5ng s\u1ebd d\u1ecbch IP \u0111\u00edch tr\u1edf l\u1ea1i IP n\u1ed9i b\u1ed9 ban \u0111\u1ea7u (192.168.1.10) v\u00e0 chuy\u1ec3n ti\u1ebfp d\u1eef li\u1ec7u \u0111\u1ebfn ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u.<\/p>\n<\/li>\n Ghi nh\u1eadt k\u00fd v\u00e0 gi\u00e1m s\u00e1t<\/strong>:Trong su\u1ed1t qu\u00e1 tr\u00ecnh n\u00e0y, c\u1ed5ng s\u1ebd ghi l\u1ea1i ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 theo d\u00f5i hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt.<\/p>\n<\/li>\n<\/ol>\n T\u00f3m l\u1ea1i, m\u1ed9t c\u1ed5ng trong b\u1ed1i c\u1ea3nh m\u1ea1ng proxy l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng cho ph\u00e9p giao ti\u1ebfp li\u1ec1n m\u1ea1ch gi\u1eefa c\u00e1c giao th\u1ee9c m\u1ea1ng kh\u00e1c nhau, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3. B\u1eb1ng c\u00e1ch hi\u1ec3u \u0111\u01b0\u1ee3c t\u01b0\u01a1ng t\u00e1c c\u1ee7a n\u00f3 v\u1edbi proxy, c\u00e1c tham s\u1ed1 ch\u00ednh v\u00e0 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng, c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng m\u1ea1nh m\u1ebd, hi\u1ec7u qu\u1ea3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a t\u1ed5 ch\u1ee9c.<\/p>","protected":false},"excerpt":{"rendered":" Technical Breakdown of Gateway in the Context of Proxy Networks What is a Gateway at a Technical Level? A gateway in the context of proxy networks serves as a crucial intermediary component that facilitates communication between different network segments or protocols. It acts as a “gate” that allows data to flow between networks that may […]<\/p>\n","protected":false},"author":1,"featured_media":399,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17],"tags":[57,62,63,65,61,64,19,48,50,66],"class_list":["post-398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-network","tag-access-control","tag-cloud-computing","tag-data-management","tag-digital-transformation","tag-gateway","tag-internet-of-things","tag-networking","tag-security","tag-technology","tag-user-experience"],"acf":[],"_links":{"self":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts\/398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/comments?post=398"}],"version-history":[{"count":0,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/posts\/398\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/media\/399"}],"wp:attachment":[{"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/media?parent=398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/categories?post=398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/replicounts.org\/vi\/wp-json\/wp\/v2\/tags?post=398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}T\u01b0\u01a1ng t\u00e1c v\u1edbi Proxy v\u00e0 M\u1ea1ng<\/h4>\n
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C\u00e1c tham s\u1ed1 ho\u1eb7c \u0111\u1ecbnh d\u1ea1ng ch\u00ednh<\/h4>\n
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V\u00ed d\u1ee5 c\u01a1 b\u1ea3n v\u1edbi gi\u1ea3i th\u00edch k\u1ef9 thu\u1eadt<\/h4>\n
V\u00ed d\u1ee5 thi\u1ebft l\u1eadp:<\/h5>\n
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C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng:<\/h5>\n
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Ph\u1ea7n k\u1ebft lu\u1eadn<\/h3>\n