{"id":579500,"date":"2023-12-28T03:08:59","date_gmt":"2023-12-28T03:08:59","guid":{"rendered":"https:\/\/proxyelite.info\/glossary\/tcp-transmission-control-protocol\/"},"modified":"2023-12-28T03:08:59","modified_gmt":"2023-12-28T03:08:59","slug":"tcp-transmission-control-protocol","status":"publish","type":"glossary","link":"https:\/\/proxyelite.info\/vi\/glossary\/tcp-transmission-control-protocol\/","title":{"rendered":"TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn)"},"content":{"rendered":"<h2>Th\u00f4ng tin t\u00f3m t\u1eaft v\u1ec1 TCP (Transmission Control Protocol)<\/h2>\n<p>TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n) l\u00e0 giao th\u1ee9c truy\u1ec1n th\u00f4ng c\u01a1 b\u1ea3n ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp v\u1eadn chuy\u1ec3n c\u1ee7a b\u1ed9 Giao th\u1ee9c Internet (IP). \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng giao th\u1ee9c c\u1ed1t l\u00f5i ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u00f4ng c\u00f3 l\u1ed7i qua internet. TCP \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1970 b\u1edfi Vint Cerf v\u00e0 Bob Kahn v\u00e0 t\u1eeb \u0111\u00f3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady trong th\u1eddi \u0111\u1ea1i k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 TCP (Transmission Control Protocol)<\/h2>\n<p>TCP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady, h\u01b0\u1edbng k\u1ebft n\u1ed1i v\u00e0 ki\u1ec3m tra l\u1ed7i. N\u00f3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y th\u00f4ng qua m\u1ed9t lo\u1ea1t c\u01a1 ch\u1ebf v\u00e0 t\u00ednh n\u0103ng gi\u00fap n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng, bao g\u1ed3m duy\u1ec7t web, li\u00ean l\u1ea1c qua email, truy\u1ec1n t\u1ec7p, v.v.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n)<\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n t\u1ea7m quan tr\u1ecdng c\u1ee7a TCP, h\u00e3y \u0111i s\u00e2u v\u00e0o m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a n\u00f3:<\/p>\n<h3>1. <strong>\u0111\u1ed9 tin c\u1eady<\/strong>: TCP \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi t\u1eeb m\u1ed9t \u0111\u1ea7u s\u1ebd \u0111\u01b0\u1ee3c nh\u1eadn ch\u00ednh x\u00e1c v\u00e0 theo \u0111\u00fang th\u1ee9 t\u1ef1 \u1edf \u0111\u1ea7u kia. N\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y th\u00f4ng qua c\u00e1c c\u01a1 ch\u1ebf nh\u01b0 \u0111\u00e1nh s\u1ed1 th\u1ee9 t\u1ef1, x\u00e1c nh\u1eadn v\u00e0 truy\u1ec1n l\u1ea1i. \u0110\u1ed9 tin c\u1eady n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/h3>\n<h3>2. <strong>Ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng<\/strong>: TCP s\u1eed d\u1ee5ng c\u00e1c c\u01a1 ch\u1ebf ki\u1ec3m so\u00e1t lu\u1ed3ng \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c ng\u01b0\u1eddi g\u1eedi tr\u00e0n ng\u1eadp d\u1eef li\u1ec7u v\u00e0o ng\u01b0\u1eddi nh\u1eadn. N\u00f3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 ngay c\u1ea3 khi hai b\u00ean giao ti\u1ebfp c\u00f3 t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n m\u1ea1ng kh\u00e1c nhau.<\/h3>\n<h3>3. <strong>\u0110i\u1ec1u khi\u1ec3n t\u1eafc ngh\u1ebdn<\/strong>: TCP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 th\u00edch \u1ee9ng v\u1edbi t\u00ecnh tr\u1ea1ng t\u1eafc ngh\u1ebdn m\u1ea1ng. N\u00f3 s\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n tr\u00e1nh t\u1eafc ngh\u1ebdn \u0111\u1ec3 ng\u0103n ch\u1eb7n t\u1eafc ngh\u1ebdn m\u1ea1ng x\u1ea3y ra v\u00e0 h\u1ebft th\u1eddi gian truy\u1ec1n l\u1ea1i \u0111\u1ec3 ph\u1ee5c h\u1ed3i sau khi m\u1ea5t g\u00f3i li\u00ean quan \u0111\u1ebfn t\u1eafc ngh\u1ebdn.<\/h3>\n<h3>4. <strong>\u0110\u1ecbnh h\u01b0\u1edbng k\u1ebft n\u1ed1i<\/strong>: TCP thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i gi\u1eefa ng\u01b0\u1eddi g\u1eedi v\u00e0 ng\u01b0\u1eddi nh\u1eadn tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u trao \u0111\u1ed5i d\u1eef li\u1ec7u. Thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i n\u00e0y bao g\u1ed3m qu\u00e1 tr\u00ecnh b\u1eaft tay ba chi\u1ec1u, \u0111\u1ea3m b\u1ea3o c\u1ea3 hai b\u00ean \u0111\u1ec1u s\u1eb5n s\u00e0ng truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u.<\/h3>\n<h2>C\u00e1c lo\u1ea1i TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn)<\/h2>\n<p>TCP c\u00f3 hai phi\u00ean b\u1ea3n ch\u00ednh: TCPv4 v\u00e0 TCPv6. TCPv4 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi ph\u1ea7n l\u1edbn c\u00e1c \u1ee9ng d\u1ee5ng internet. TCPv6 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a TCPv4 v\u00e0 cung c\u1ea5p h\u1ed7 tr\u1ee3 cho s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i Internet ng\u00e0y c\u00e0ng t\u0103ng do c\u1ea1n ki\u1ec7t \u0111\u1ecba ch\u1ec9 IPv4.<\/p>\n<p>Ch\u00fang ta h\u00e3y xem x\u00e9t k\u1ef9 h\u01a1n nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa TCPv4 v\u00e0 TCPv6:<\/p>\n<table>\n<thead>\n<tr>\n<th>T\u00ednh n\u0103ng<\/th>\n<th>TCPv4<\/th>\n<th>TCPv6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u1ecbnh d\u1ea1ng \u0111\u1ecba ch\u1ec9<\/td>\n<td>S\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP 32 bit<\/td>\n<td>S\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP 128 bit<\/td>\n<\/tr>\n<tr>\n<td>C\u1ea5u h\u00ecnh \u0111\u1ecba ch\u1ec9<\/td>\n<td>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh th\u1ee7 c\u00f4ng ho\u1eb7c qua DHCP<\/td>\n<td>H\u1ed7 tr\u1ee3 c\u1ea5u h\u00ecnh t\u1ef1 \u0111\u1ed9ng (SLAAC)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a ti\u00eau \u0111\u1ec1<\/td>\n<td>C\u1ea5u tr\u00fac ti\u00eau \u0111\u1ec1 \u0111\u01a1n gi\u1ea3n h\u01a1n<\/td>\n<td>C\u1ea5u tr\u00fac ti\u00eau \u0111\u1ec1 ph\u1ee9c t\u1ea1p h\u01a1n<\/td>\n<\/tr>\n<tr>\n<td>B\u1ea3o v\u1ec7<\/td>\n<td>C\u00e1c t\u00ednh n\u0103ng b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c th\u00eam d\u01b0\u1edbi d\u1ea1ng ti\u1ec7n \u00edch m\u1edf r\u1ed9ng<\/td>\n<td>H\u1ed7 tr\u1ee3 t\u00edch h\u1ee3p cho IPsec<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch NAT<\/td>\n<td>Th\u01b0\u1eddng y\u00eau c\u1ea7u d\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT)<\/td>\n<td>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n NAT<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn), c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<h3>S\u1eed d\u1ee5ng TCP:<\/h3>\n<ul>\n<li><strong>Duy\u1ec7t web<\/strong>: TCP l\u00e0 n\u1ec1n t\u1ea3ng cho vi\u1ec7c duy\u1ec7t web. Khi b\u1ea1n truy c\u1eadp m\u1ed9t trang web, tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n s\u1ebd thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i TCP v\u1edbi m\u00e1y ch\u1ee7 web \u0111\u1ec3 y\u00eau c\u1ea7u v\u00e0 nh\u1eadn c\u00e1c trang web.<\/li>\n<li><strong>Li\u00ean l\u1ea1c qua email<\/strong>: SMTP (Giao th\u1ee9c truy\u1ec1n th\u01b0 \u0111\u01a1n gi\u1ea3n) s\u1eed d\u1ee5ng TCP \u0111\u1ec3 g\u1eedi email m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/li>\n<li><strong>Chuy\u1ec3n t\u1eadp tin<\/strong>: FTP (Giao th\u1ee9c truy\u1ec1n t\u1ec7p) v\u00e0 SSH (Secure Shell) s\u1eed d\u1ee5ng TCP \u0111\u1ec3 truy\u1ec1n t\u1ec7p an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/li>\n<\/ul>\n<h3>V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n<ul>\n<li><strong>M\u1ea5t g\u00f3i<\/strong>: M\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u1edbi TCP l\u00e0 m\u1ea5t g\u00f3i, th\u01b0\u1eddng do t\u1eafc ngh\u1ebdn m\u1ea1ng. C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m \u0111i\u1ec1u ch\u1ec9nh thu\u1eadt to\u00e1n ki\u1ec3m so\u00e1t t\u1eafc ngh\u1ebdn v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng.<\/li>\n<li><strong>\u0110\u1ed9 tr\u1ec5<\/strong>: Qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i c\u1ee7a TCP c\u00f3 th\u1ec3 g\u00e2y ra \u0111\u1ed9 tr\u1ec5. C\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 k\u1ebft n\u1ed1i t\u1ed5ng h\u1ee3p v\u00e0 k\u1ebft n\u1ed1i li\u00ean t\u1ee5c gi\u00fap gi\u1ea3m thi\u1ec3u \u0111i\u1ec1u n\u00e0y.<\/li>\n<li><strong>T\u01b0\u1eddng l\u1eeda<\/strong>: T\u01b0\u1eddng l\u1eeda \u0111\u00f4i khi c\u00f3 th\u1ec3 ch\u1eb7n c\u00e1c k\u1ebft n\u1ed1i TCP. C\u1ea5u h\u00ecnh ph\u00f9 h\u1ee3p v\u00e0 quy t\u1eafc t\u01b0\u1eddng l\u1eeda l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 v\u01b0\u1ee3t qua r\u00e0o c\u1ea3n n\u00e0y.<\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>\u0110\u1ec3 ph\u00e2n bi\u1ec7t TCP v\u1edbi c\u00e1c thu\u1eadt ng\u1eef v\u00e0 giao th\u1ee9c t\u01b0\u01a1ng t\u1ef1, \u0111\u00e2y l\u00e0 so s\u00e1nh ng\u1eafn g\u1ecdn:<\/p>\n<table>\n<thead>\n<tr>\n<th>Giao th\u1ee9c<\/th>\n<th>\u0110\u1eb7c tr\u01b0ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn)<\/td>\n<td>Truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00e1ng tin c\u1eady, h\u01b0\u1edbng k\u1ebft n\u1ed1i, ki\u1ec3m tra l\u1ed7i. C\u1ed1t l\u00f5i c\u1ee7a truy\u1ec1n th\u00f4ng internet.<\/td>\n<\/tr>\n<tr>\n<td>UDP (Giao th\u1ee9c g\u00f3i d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng)<\/td>\n<td>Truy\u1ec1n d\u1eef li\u1ec7u nh\u1eb9, kh\u00f4ng k\u1ebft n\u1ed1i, \u0111\u1ed9 tr\u1ec5 th\u1ea5p. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 truy\u1ec1n ph\u00e1t video.<\/td>\n<\/tr>\n<tr>\n<td>IP (Giao th\u1ee9c Internet)<\/td>\n<td>Cung c\u1ea5p \u0111\u1ecba ch\u1ec9 v\u00e0 \u0111\u1ecbnh tuy\u1ebfn. Ho\u1ea1t \u0111\u1ed9ng c\u00f9ng v\u1edbi TCP ho\u1eb7c UDP \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Vi\u1ec5n c\u1ea3nh v\u00e0 c\u00f4ng ngh\u1ec7 trong t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn)<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a TCP g\u1eafn ch\u1eb7t v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a Internet v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i. M\u1ed9t s\u1ed1 l\u0129nh v\u1ef1c ch\u00ednh c\u1ea7n theo d\u00f5i vai tr\u00f2 c\u1ee7a TCP trong t\u01b0\u01a1ng lai bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>K\u1ebft n\u1ed1i IoT<\/strong>: Khi Internet of Things (IoT) ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, TCP c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng s\u1ed1 l\u01b0\u1ee3ng l\u1edbn thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111a d\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ea1ng 5G<\/strong>: Vi\u1ec7c tri\u1ec3n khai m\u1ea1ng 5G c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a TCP v\u00e0 kh\u1ea3 n\u0103ng t\u1ed1i \u01b0u h\u00f3a ti\u1ec1m n\u0103ng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 \u0111\u1ed9 tr\u1ec5 c\u1ef1c th\u1ea5p.<\/p>\n<\/li>\n<li>\n<p><strong>C\u1ea3i ti\u1ebfn b\u1ea3o m\u1eadt<\/strong>: TCP c\u00f3 th\u1ec3 s\u1ebd ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt \u0111ang n\u1ed5i l\u00ean, \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n trong m\u1ed9t th\u1ebf gi\u1edbi ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau.<\/p>\n<\/li>\n<\/ul>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n)<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong b\u1ed1i c\u1ea3nh TCP b\u1eb1ng c\u00e1ch \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7. H\u1ecd c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 m\u1ed9t s\u1ed1 m\u1ee5c \u0111\u00edch:<\/p>\n<ol>\n<li>\n<p><strong>Quy\u1ec1n ri\u00eang t\u01b0 n\u00e2ng cao<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u1ea9n \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, th\u00eam m\u1ed9t l\u1edbp \u1ea9n danh khi t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 d\u1ef1a tr\u00ean TCP.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m<\/strong>: Proxy c\u00f3 th\u1ec3 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m n\u1ed9i dung \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean, gi\u1ea3m t\u1ea3i cho m\u00e1y ch\u1ee7 TCP v\u00e0 c\u1ea3i thi\u1ec7n th\u1eddi gian ph\u1ea3n h\u1ed3i cho m\u00e1y kh\u00e1ch.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1ecdc n\u1ed9i dung<\/strong>: Proxy c\u00f3 th\u1ec3 l\u1ecdc v\u00e0 ki\u1ec3m so\u00e1t n\u1ed9i dung \u0111i qua ch\u00fang, cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c th\u1ef1c thi ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt v\u00e0 ch\u1eb7n l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed9c h\u1ea1i.<\/p>\n<\/li>\n<li>\n<p><strong>C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i c\u00e1c k\u1ebft n\u1ed1i TCP \u0111\u1ebfn gi\u1eefa nhi\u1ec1u m\u00e1y ch\u1ee7 ph\u1ee5 tr\u1ee3, \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng t\u00e0i nguy\u00ean hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/p>\n<\/li>\n<li>\n<p><strong>Ki\u1ec3m so\u00e1t truy c\u1eadp<\/strong>: Proxy c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c d\u1ecbch v\u1ee5 TCP c\u1ee5 th\u1ec3 d\u1ef1a tr\u00ean ch\u00ednh s\u00e1ch, gi\u00fap c\u00e1c t\u1ed5 ch\u1ee9c ki\u1ec3m so\u00e1t nh\u1eefng ai c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi d\u1ecbch v\u1ee5 c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n<\/ol>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chuy\u00ean s\u00e2u v\u1ec1 TCP (Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n t\u1ea3i), b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean c\u00f3 th\u1ea9m quy\u1ec1n sau:<\/p>\n<ol>\n<li><a target=\"_new\" rel=\"noopener\">RFC 793 \u2013 Giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n truy\u1ec1n d\u1eabn<\/a><\/li>\n<li><a target=\"_new\" rel=\"noopener\">Minh h\u1ecda TCP\/IP, T\u1eadp 1: C\u00e1c giao th\u1ee9c<\/a><\/li>\n<\/ol>\n<p>T\u1ed5ng quan to\u00e0n di\u1ec7n n\u00e0y v\u1ec1 TCP s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 trong th\u1ebf gi\u1edbi m\u1ea1ng v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi c\u00e1c m\u00e1y ch\u1ee7 proxy do ProxyElite cung c\u1ea5p.<\/p>","protected":false},"featured_media":579501,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-579500","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":0,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579500\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media\/579501"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=579500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}