{"id":479187,"date":"2023-08-09T10:31:59","date_gmt":"2023-08-09T10:31:59","guid":{"rendered":""},"modified":"2023-11-30T04:11:58","modified_gmt":"2023-11-30T04:11:58","slug":"stun-server","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/stun-server\/","title":{"rendered":"M\u00e1y ch\u1ee7 STUN"},"content":{"rendered":"<p>M\u00e1y ch\u1ee7 STUN (Ti\u1ec7n \u00edch truy\u1ec1n t\u1ea3i phi\u00ean cho NAT) \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong giao ti\u1ebfp m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb \u0111\u1eb1ng sau D\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT) kh\u00e1m ph\u00e1 \u0111\u1ecba ch\u1ec9 c\u00f4ng c\u1ed9ng v\u00e0 s\u1ed1 c\u1ed5ng c\u1ee7a ch\u00fang. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o chi ti\u1ebft v\u1ec1 m\u00e1y ch\u1ee7 STUN, ngu\u1ed3n g\u1ed1c, ch\u1ee9c n\u0103ng, \u1ee9ng d\u1ee5ng v\u00e0 s\u1ef1 t\u01b0\u01a1ng t\u00e1c c\u1ee7a ch\u00fang v\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ngu\u1ed3n g\u1ed1c v\u00e0 l\u1ecbch s\u1eed c\u1ee7a m\u00e1y ch\u1ee7 STUN<\/h2>\n\n\n\n<p>Kh\u00e1i ni\u1ec7m m\u00e1y ch\u1ee7 STUN n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t ph\u1ea3n \u1ee9ng tr\u01b0\u1edbc nh\u1eefng th\u00e1ch th\u1ee9c do NAT (D\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng) \u0111\u1eb7t ra trong giao ti\u1ebfp ngang h\u00e0ng (P2P). NAT, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m b\u1edbt t\u00ecnh tr\u1ea1ng c\u1ea1n ki\u1ec7t \u0111\u1ecba ch\u1ec9 IPv4, \u0111\u00e3 v\u00f4 t\u00ecnh t\u1ea1o ra nh\u1eefng tr\u1edf ng\u1ea1i trong giao ti\u1ebfp tr\u1ef1c ti\u1ebfp ngang h\u00e0ng. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn STUN \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong RFC 3489 c\u1ee7a IETF, xu\u1ea5t b\u1ea3n n\u0103m 2003, \u0111\u1eb7t n\u1ec1n m\u00f3ng cho giao th\u1ee9c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c t\u00ednh n\u0103ng v\u00e0 ph\u00e2n t\u00edch ch\u00ednh<\/h2>\n\n\n\n<p>M\u00e1y ch\u1ee7 STUN l\u00e0 c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 giao ti\u1ebfp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb trong c\u00e1c m\u1ea1ng NAT kh\u00e1c nhau. C\u00e1c t\u00ednh n\u0103ng ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kh\u00e1m ph\u00e1 NAT:<\/strong> X\u00e1c \u0111\u1ecbnh lo\u1ea1i thi\u1ebft b\u1ecb NAT m\u00e0 kh\u00e1ch h\u00e0ng s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li><strong>Gi\u1ea3i quy\u1ebft \u0111\u1ecba ch\u1ec9 c\u00f4ng c\u1ed9ng:<\/strong> Cho ph\u00e9p kh\u00e1ch h\u00e0ng kh\u00e1m ph\u00e1 \u0111\u1ecba ch\u1ec9 IP v\u00e0 c\u1ed5ng c\u00f4ng c\u1ed9ng c\u1ee7a n\u00f3.<\/li>\n\n\n\n<li><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch:<\/strong> Ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch v\u1edbi nhi\u1ec1u lo\u1ea1i NAT kh\u00e1c nhau, bao g\u1ed3m Full Cone, Limited Cone, Port Limited Cone v\u00e0 Symmetric NAT.<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng t\u00ednh n\u0103ng n\u00e0y r\u1ea5t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 VoIP (Giao th\u1ee9c tho\u1ea1i qua Internet), h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh v\u00e0 ch\u01a1i game tr\u1ef1c tuy\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u1ee8ng d\u1ee5ng, v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n\n\n\n<p>M\u00e1y ch\u1ee7 STUN \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c t\u00ecnh hu\u1ed1ng y\u00eau c\u1ea7u giao ti\u1ebfp ngang h\u00e0ng tr\u1ef1c ti\u1ebfp. C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u1ecbch v\u1ee5 VoIP:<\/strong> T\u1ea1o \u0111i\u1ec1u ki\u1ec7n giao ti\u1ebfp b\u1eb1ng gi\u1ecdng n\u00f3i tr\u1ef1c ti\u1ebfp.<\/li>\n\n\n\n<li><strong>H\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh:<\/strong> \u0110\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i video v\u00e0 \u00e2m thanh \u1ed5n \u0111\u1ecbnh.<\/li>\n\n\n\n<li><strong>Ch\u01a1i game tr\u1ef1c tuy\u1ebfn:<\/strong> Cho ph\u00e9p tr\u1ea3i nghi\u1ec7m ch\u01a1i tr\u00f2 ch\u01a1i nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i trong th\u1eddi gian th\u1ef1c.<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng th\u00e1ch th\u1ee9c th\u01b0\u1eddng n\u1ea3y sinh do nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a STUN trong vi\u1ec7c x\u1eed l\u00fd m\u1ed9t s\u1ed1 lo\u1ea1i NAT nh\u1ea5t \u0111\u1ecbnh, \u0111\u1eb7c bi\u1ec7t l\u00e0 NAT \u0111\u1ed1i x\u1ee9ng. C\u00e1c gi\u1ea3i ph\u00e1p thay th\u1ebf nh\u01b0 m\u00e1y ch\u1ee7 TURN (Traversal Use Relays Around NAT) \u0111\u00f4i khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 kh\u1eafc ph\u1ee5c nh\u1eefng h\u1ea1n ch\u1ebf n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u00e2n t\u00edch so s\u00e1nh v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u1ef1<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>T\u00ednh n\u0103ng<\/th><th>M\u00e1y ch\u1ee7 STUN<\/th><th>B\u1eacT M\u00e1y ch\u1ee7<\/th><th>Giao th\u1ee9c ICE<\/th><\/tr><\/thead><tbody><tr><td>Ch\u1ee9c n\u0103ng ch\u00ednh<\/td><td>Truy\u1ec1n t\u1ea3i NAT<\/td><td>Chuy\u1ec3n ti\u1ebfp v\u00e0 truy\u1ec1n t\u1ea3i NAT<\/td><td>Truy\u1ec1n t\u1ea3i NAT to\u00e0n di\u1ec7n<\/td><\/tr><tr><td>Tr\u00ean kh\u00f4ng<\/td><td>Th\u1ea5p<\/td><td>Cao<\/td><td>V\u1eeba ph\u1ea3i<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/td><td>C\u00e1c lo\u1ea1i NAT h\u1ea1n ch\u1ebf<\/td><td>T\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i NAT<\/td><td>R\u1ed9ng r\u00e3i<\/td><\/tr><tr><td>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/td><td>K\u1ebft n\u1ed1i P2P \u0111\u01a1n gi\u1ea3n<\/td><td>M\u00f4i tr\u01b0\u1eddng m\u1ea1ng ph\u1ee9c t\u1ea1p<\/td><td>Gi\u1ea3i ph\u00e1p m\u1ea1ng \u0111a n\u0103ng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n\n\n\n<p>T\u01b0\u01a1ng lai c\u1ee7a m\u00e1y ch\u1ee7 STUN g\u1eafn ch\u1eb7t v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 m\u1ea1ng. V\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a IPv6 v\u00e0 h\u1ee9a h\u1eb9n lo\u1ea1i b\u1ecf NAT, vai tr\u00f2 c\u1ee7a STUN c\u00f3 th\u1ec3 ph\u00e1t tri\u1ec3n ho\u1eb7c gi\u1ea3m b\u1edbt. Tuy nhi\u00ean, t\u1ea1m th\u1eddi, d\u1ef1 ki\u1ebfn s\u1ebd c\u00f3 nh\u1eefng c\u1ea3i ti\u1ebfn trong giao th\u1ee9c STUN \u0111\u1ec3 x\u1eed l\u00fd t\u1ed1t h\u01a1n c\u00e1c m\u00f4i tr\u01b0\u1eddng NAT \u0111a d\u1ea1ng v\u00e0 t\u00edch h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 5G.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy v\u1edbi STUN<\/h2>\n\n\n\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 b\u1ed5 sung cho m\u00e1y ch\u1ee7 STUN b\u1eb1ng c\u00e1ch cung c\u1ea5p th\u00eam c\u00e1c l\u1edbp b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0. Trong k\u1ebft h\u1ee3p m\u00e1y ch\u1ee7 proxy-STUN, m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t trung gian, t\u0103ng c\u01b0\u1eddng t\u00ednh \u1ea9n danh v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 tr\u00e1nh m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn NAT. S\u1ef1 k\u1ebft h\u1ee3p n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 l\u1ee3i trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p n\u01a1i b\u1ea3o m\u1eadt v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean h\u00e0ng \u0111\u1ea7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n\n\n\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft v\u1ec1 m\u00e1y ch\u1ee7 STUN, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang, c\u00e1c t\u00e0i nguy\u00ean sau c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 tr\u1ecb:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc3489\" rel=\"nofollow noopener\" target=\"_blank\">IETF RFC 3489 \u2013 STUN \u2013 Truy\u1ec1n t\u1ea3i \u0111\u01a1n gi\u1ea3n giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng (UDP) th\u00f4ng qua Tr\u00ecnh d\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/webrtc.org\/\" rel=\"nofollow noopener\" target=\"_blank\">WebRTC.org \u2013 T\u00ecm hi\u1ec3u v\u1ec1 STUN\/TURN<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.voip-info.org\/stun\/\" rel=\"nofollow noopener\" target=\"_blank\">Th\u00f4ng tin VoIP \u2013 Th\u00f4ng tin giao th\u1ee9c v\u00e0 m\u00e1y ch\u1ee7 STUN<\/a><\/li>\n<\/ol>\n\n\n\n<p>B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p s\u1ef1 hi\u1ec3u bi\u1ebft to\u00e0n di\u1ec7n v\u1ec1 m\u00e1y ch\u1ee7 STUN, t\u1ea7m quan tr\u1ecdng c\u1ee7a ch\u00fang trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i v\u00e0 m\u1ed1i quan h\u1ec7 c\u1ed9ng sinh c\u1ee7a ch\u00fang v\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>","protected":false},"featured_media":479188,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479187","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark><\/mark>","faq_items":[{"question":"What is a STUN Server?","answer":"A STUN (Session Traversal Utilities for NAT) server is a standardized protocol used in network applications to discover public Internet Protocol (IP) addresses and the type of NAT firewall they are behind. It's essential for enabling applications to traverse Network Address Translator (NAT) gateways and is widely used in VoIP, video conferencing, and real-time communication."},{"question":"When was the STUN Server Protocol First Defined?","answer":"The STUN protocol was initially defined in RFC 3489, published in March 2003 by the Internet Engineering Task Force (IETF). It has seen several updates, with the latest significant version defined in RFC 5389 in October 2008."},{"question":"How Does the STUN Server Work?","answer":"The STUN server works by receiving a query from a client behind a NAT, processing the request, and responding with the client's public IP address and port number. It consists of a listening component, a response component, and a mapping component, working together in a stateless manner to facilitate communication between hosts located behind NAT devices."},{"question":"What are the Key Features of a STUN Server?","answer":"Key features of a STUN server include its ability to traverse NAT, lightweight design, security measures such as authentication, and versatility in various real-time applications."},{"question":"What Types of STUN Servers Exist?","answer":"There are different types of STUN servers, including Classic STUN for traditional NAT traversal, TURN (Traversal Using Relays around NAT), and ICE (Interactive Connectivity Establishment)."},{"question":"What are Some Problems and Solutions Related to STUN Server Usage?","answer":"Some problems associated with STUN server usage include incompatibility with certain NAT types (Symmetric NAT) and security concerns. Solutions include utilizing TURN servers for complex NAT scenarios and implementing proper authentication and encryption."},{"question":"What are the Future Perspectives of STUN Technology?","answer":"Future perspectives of STUN technology include the integration with artificial intelligence, increased security measures, and enhanced scalability, driven by the ongoing development of real-time applications and IoT devices."},{"question":"How are Proxy Servers Associated with STUN Servers?","answer":"Proxy servers and STUN servers can work together to enhance privacy and security. While the STUN server facilitates NAT traversal, proxy servers add an extra layer of anonymity and content filtering."},{"question":"Where Can I Find More Information about STUN Servers?","answer":"More information about STUN servers can be found at <a href=\"https:\/\/tools.ietf.org\/html\/rfc5389\" target=\"_new\">IETF's Official RFC 5389<\/a>, <a href=\"https:\/\/www.html5rocks.com\/en\/tutorials\/webrtc\/infrastructure\/\" target=\"_new\">WebRTC's Overview of STUN\/TURN<\/a>, and <a href=\"https:\/\/oneproxy.pro\" target=\"_new\">OneProxy Services<\/a>."}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479187","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\/479187\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479188"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}