{"id":479481,"date":"2023-08-09T10:40:40","date_gmt":"2023-08-09T10:40:40","guid":{"rendered":""},"modified":"2023-09-05T11:18:55","modified_gmt":"2023-09-05T11:18:55","slug":"user-datagram-protocol","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/user-datagram-protocol\/","title":{"rendered":"Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng"},"content":{"rendered":"<p>Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng (UDP) l\u00e0 m\u1ed9t trong nh\u1eefng giao th\u1ee9c c\u1ed1t l\u00f5i c\u1ee7a b\u1ed9 Giao th\u1ee9c Internet (IP) v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua m\u1ea1ng. Kh\u00f4ng gi\u1ed1ng nh\u01b0 TCP, \u0111\u1ed1i t\u00e1c h\u01b0\u1edbng \u0111\u1ebfn k\u1ebft n\u1ed1i c\u1ee7a n\u00f3, UDP l\u00e0 m\u1ed9t giao th\u1ee9c kh\u00f4ng k\u1ebft n\u1ed1i, l\u00e0m cho n\u00f3 \u0111\u01a1n gi\u1ea3n h\u01a1n v\u00e0 nhanh h\u01a1n nh\u01b0ng k\u00e9m tin c\u1eady h\u01a1n. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o chi ti\u1ebft, l\u1ecbch s\u1eed, c\u1ea5u tr\u00fac, t\u00ednh n\u0103ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a UDP, \u0111\u1eb7c bi\u1ec7t t\u1eadp trung v\u00e0o m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n<p>UDP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u1edfi David P. Reed v\u00e0o n\u0103m 1980 v\u00e0 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong RFC 768. \u0110\u1ed9ng l\u1ef1c ch\u00ednh \u0111\u1eb1ng sau vi\u1ec7c t\u1ea1o ra UDP l\u00e0 cung c\u1ea5p m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1ed1n chi ph\u00ed thi\u1ebft l\u1eadp v\u00e0 ph\u00e1 b\u1ecf k\u1ebft n\u1ed1i, \u0111i\u1ec3n h\u00ecnh c\u1ee7a TCP. L\u00e0 m\u1ed9t ph\u1ea7n trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n Internet ban \u0111\u1ea7u, UDP \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c cung c\u1ea5p gi\u1ea3i ph\u00e1p thay th\u1ebf cho c\u00e1c giao th\u1ee9c ph\u1ee9c t\u1ea1p h\u01a1n, gi\u00fap c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n linh ho\u1ea1t h\u01a1n trong giao ti\u1ebfp m\u1ea1ng.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<p>UDP l\u00e0 giao th\u1ee9c l\u1edbp v\u1eadn chuy\u1ec3n t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c trao \u0111\u1ed5i c\u00e1c g\u00f3i d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n li\u00ean l\u1ea1c tr\u01b0\u1edbc \u0111\u1ec3 thi\u1ebft l\u1eadp c\u00e1c k\u00eanh ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn d\u1eef li\u1ec7u chuy\u00ean d\u1ee5ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m c\u01a1 b\u1ea3n c\u1ee7a UDP:<\/p>\n<ul>\n<li><strong>Kh\u00f4ng k\u1ebft n\u1ed1i:<\/strong> Kh\u00f4ng c\u1ea7n thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i tr\u01b0\u1edbc khi truy\u1ec1n d\u1eef li\u1ec7u.<\/li>\n<li><strong>Kh\u00f4ng \u0111\u00e1ng tin c\u1eady:<\/strong> N\u00f3 kh\u00f4ng \u0111\u1ea3m b\u1ea3o vi\u1ec7c ph\u00e2n ph\u1ed1i ho\u1eb7c b\u1ea3o to\u00e0n tr\u00ecnh t\u1ef1, khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng th\u1eddi gian th\u1ef1c.<\/li>\n<li><strong>\u0110\u01a1n gi\u1ea3n:<\/strong> Kh\u00f4ng c\u1ea7n th\u1ee7 t\u1ee5c b\u1eaft tay, t\u00ednh \u0111\u01a1n gi\u1ea3n c\u1ee7a UDP cho ph\u00e9p giao ti\u1ebfp nhanh h\u01a1n.<\/li>\n<li><strong>Kh\u00f4ng qu\u1ed1c t\u1ecbch:<\/strong> M\u1ed7i datagram \u0111\u1ec1u \u0111\u1ed9c l\u1eadp, d\u1eabn \u0111\u1ebfn chi ph\u00ed t\u1ed1i thi\u1ec3u.<\/li>\n<\/ul>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>UDP d\u1ef1a tr\u00ean c\u1ea5u tr\u00fac ti\u00eau \u0111\u1ec1 t\u1ed1i gi\u1ea3n, bao g\u1ed3m b\u1ed1n tr\u01b0\u1eddng:<\/p>\n<ol>\n<li><strong>C\u1ed5ng ngu\u1ed3n:<\/strong> X\u00e1c \u0111\u1ecbnh c\u1ed5ng g\u1eedi (t\u00f9y ch\u1ecdn).<\/li>\n<li><strong>C\u1ea3ng \u0111\u00edch:<\/strong> X\u00e1c \u0111\u1ecbnh c\u1ed5ng nh\u1eadn.<\/li>\n<li><strong>Chi\u1ec1u d\u00e0i:<\/strong> Ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed9 d\u00e0i c\u1ee7a datagram, bao g\u1ed3m c\u1ea3 ti\u00eau \u0111\u1ec1.<\/li>\n<li><strong>T\u1ed5ng ki\u1ec3m tra:<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch ki\u1ec3m tra l\u1ed7i.<\/li>\n<\/ol>\n<p>S\u1ef1 \u0111\u01a1n gi\u1ea3n c\u1ee7a c\u1ea5u tr\u00fac n\u00e0y cho ph\u00e9p x\u1eed l\u00fd nhanh ch\u00f3ng nh\u01b0ng l\u1ea1i l\u00e0m m\u1ea5t \u0111i \u0111\u1ed9 tin c\u1eady v\u00e0 tr\u1eadt t\u1ef1.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng<\/h2>\n<ul>\n<li><strong>T\u1ed1c \u0111\u1ed9:<\/strong> \u00cdt chi ph\u00ed h\u01a1n c\u00f3 ngh\u0129a l\u00e0 truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n.<\/li>\n<li><strong>Giao ti\u1ebfp th\u1eddi gian th\u1ef1c:<\/strong> L\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng \u01b0u ti\u00ean t\u00ednh k\u1ecbp th\u1eddi h\u01a1n \u0111\u1ed9 tin c\u1eady.<\/li>\n<li><strong>Uy\u1ec3n chuy\u1ec3n:<\/strong> B\u1ea3n ch\u1ea5t kh\u00f4ng qu\u1ed1c t\u1ecbch c\u1ee7a n\u00f3 cho ph\u00e9p c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> Th\u00edch h\u1ee3p cho truy\u1ec1n th\u00f4ng multicast v\u00e0 Broadcast.<\/li>\n<\/ul>\n<h2>Nh\u1eefng lo\u1ea1i giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng n\u00e0o t\u1ed3n t\u1ea1i<\/h2>\n<p>B\u1ea3n th\u00e2n UDP l\u00e0 m\u1ed9t giao th\u1ee9c chu\u1ea9n; tuy nhi\u00ean, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li><strong>Truy\u1ec1n \u0111\u01a1n:<\/strong> Giao ti\u1ebfp m\u1ed9t-m\u1ed9t.<\/li>\n<li><strong>\u0110a ph\u01b0\u01a1ng ti\u1ec7n:<\/strong> Giao ti\u1ebfp m\u1ed9t-nhi\u1ec1u.<\/li>\n<li><strong>Ph\u00e1t tin:<\/strong> Giao ti\u1ebfp m\u1ed9t-t\u1ea5t c\u1ea3 trong m\u1ed9t m\u1ea1ng.<\/li>\n<\/ul>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<h3>C\u00e1ch s\u1eed d\u1ee5ng:<\/h3>\n<ul>\n<li><strong>D\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn<\/strong><\/li>\n<li><strong>ch\u01a1i game<\/strong><\/li>\n<li><strong>VoIP<\/strong><\/li>\n<li><strong>Truy v\u1ea5n DNS<\/strong><\/li>\n<\/ul>\n<h3>C\u00e1c v\u1ea5n \u0111\u1ec1:<\/h3>\n<ul>\n<li><strong>M\u1ea5t d\u1eef li\u1ec7u<\/strong><\/li>\n<li><strong>Giao h\u00e0ng kh\u00f4ng theo \u0111\u01a1n \u0111\u1eb7t h\u00e0ng<\/strong><\/li>\n<\/ul>\n<h3>C\u00e1c gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li><strong>X\u1eed l\u00fd l\u1ed7i c\u1ea5p \u1ee9ng d\u1ee5ng<\/strong><\/li>\n<li><strong>S\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c nh\u01b0 RTP \u0111\u1ec3 gi\u1ea3i tr\u00ecnh t\u1ef1<\/strong><\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 nh\u1eefng so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>UDP<\/th>\n<th>TCP<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S\u1ef1 li\u00ean quan<\/td>\n<td>Kh\u00f4ng k\u1ebft n\u1ed1i<\/td>\n<td>\u0110\u1ecbnh h\u01b0\u1edbng k\u1ebft n\u1ed1i<\/td>\n<\/tr>\n<tr>\n<td>\u0111\u1ed9 tin c\u1eady<\/td>\n<td>KH\u00d4NG<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed1c \u0111\u1ed9<\/td>\n<td>Nhanh h\u01a1n<\/td>\n<td>Ch\u1eadm h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1eb7t h\u00e0ng<\/td>\n<td>KH\u00d4NG<\/td>\n<td>\u0110\u00fang<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng<\/h2>\n<p>S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a IoT, giao ti\u1ebfp th\u1eddi gian th\u1ef1c v\u00e0 c\u00f4ng ngh\u1ec7 5G h\u1ee9a h\u1eb9n vai tr\u00f2 quan tr\u1ecdng h\u01a1n c\u1ee7a UDP. C\u00e1c ti\u00eau chu\u1ea9n v\u00e0 c\u01a1 ch\u1ebf m\u1edbi c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n \u0111\u1ec3 gi\u1ea3i quy\u1ebft t\u00ednh kh\u00f4ng \u0111\u00e1ng tin c\u1eady v\u1ed1n c\u00f3 c\u1ee7a n\u00f3 m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng<\/h2>\n<p>C\u00e1c m\u00e1y ch\u1ee7 proxy gi\u1ed1ng nh\u01b0 c\u00e1c m\u00e1y ch\u1ee7 do OneProxy cung c\u1ea5p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng UDP \u0111\u1ec3 qu\u1ea3n l\u00fd vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c cho m\u00e1y kh\u00e1ch. V\u00ec UDP cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u nhanh n\u00ean n\u00f3 \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n v\u01b0\u1ee3t qua c\u00e1c h\u1ea1n ch\u1ebf ho\u1eb7c ki\u1ec3m duy\u1ec7t v\u1ec1 \u0111\u1ecba l\u00fd, y\u00eau c\u1ea7u ph\u1ea3n h\u1ed3i theo th\u1eddi gian th\u1ef1c. B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng UDP, OneProxy \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i nhanh ch\u00f3ng v\u00e0 h\u1ee3p l\u00fd cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc768\" target=\"_new\" rel=\"noopener nofollow\">RFC 768 - Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/\" target=\"_new\" rel=\"noopener\">OneProxy \u2013 Gi\u1ea3i ph\u00e1p proxy ch\u1ea5t l\u01b0\u1ee3ng cao<\/a><\/li>\n<li><a href=\"https:\/\/www.ietf.org\" target=\"_new\" rel=\"noopener nofollow\">IETF - L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet<\/a><\/li>\n<\/ul>\n<hr>\n<p><em>B\u00e0i vi\u1ebft n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng (UDP). \u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft v\u00e0 c\u00e1ch tri\u1ec3n khai c\u1ee5 th\u1ec3, vui l\u00f2ng tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean \u0111\u01b0\u1ee3c cung c\u1ea5p ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 m\u1ea1ng chuy\u00ean nghi\u1ec7p nh\u01b0 OneProxy.<\/em><\/p>","protected":false},"featured_media":479482,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479481","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>User Datagram Protocol (UDP)<\/mark>","faq_items":[{"question":"What is the User Datagram Protocol (UDP)?","answer":"<p>UDP is a core protocol of the Internet Protocol suite used for transmitting data over a network. Unlike TCP, it is connectionless, making it simpler and faster but less reliable. UDP is essential for real-time applications where speed is prioritized over data integrity.<\/p>"},{"question":"Who designed the User Datagram Protocol, and when was it first created?","answer":"<p>UDP was designed by David P. Reed in 1980 and was first defined in RFC 768. It was developed to provide a more straightforward and fast means of data transmission without the overhead associated with connection-oriented protocols like TCP.<\/p>"},{"question":"How does the User Datagram Protocol work?","answer":"<p>UDP works by sending datagrams without establishing a dedicated connection. It uses a simple header structure with fields including Source Port, Destination Port, Length, and Checksum. This simplicity allows quick processing but lacks reliability and ordering guarantees.<\/p>"},{"question":"What are the key features of UDP?","answer":"<p>The key features of UDP include its speed, suitability for real-time communication, flexibility, scalability, and its connectionless, unreliable, and stateless nature.<\/p>"},{"question":"In what types of communication can UDP be used?","answer":"<p>UDP can be used in Unicast (one-to-one), Multicast (one-to-many), and Broadcast (one-to-all within a network) communication, making it versatile in different networking scenarios.<\/p>"},{"question":"What are some common uses of UDP, and what problems might arise?","answer":"<p>UDP is commonly used in Streaming Services, Gaming, VoIP, and DNS Queries. The problems that might arise include Loss of Data and Out-of-Order Delivery, which can be mitigated by Application-Level Error Handling and utilizing protocols like RTP for sequencing.<\/p>"},{"question":"How does UDP compare to TCP?","answer":"<p>UDP is connectionless, faster, and less reliable, with no guarantee for ordering, while TCP is connection-oriented, slower, more reliable, and preserves the sequence of data.<\/p>"},{"question":"What are the future prospects related to UDP?","answer":"<p>With the evolution of IoT, real-time communication, and 5G technologies, UDP's role is expected to grow. New standards and mechanisms may emerge to enhance its efficiency without compromising its inherent speed advantage.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with UDP?","answer":"<p>Proxy servers like OneProxy can utilize UDP to manage real-time data transmission for clients, allowing for a streamlined and rapid connection for various applications, including bypassing geographical restrictions or censorship.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479481","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\/479481\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479482"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}