{"id":8558,"date":"2022-04-01T17:01:54","date_gmt":"2022-04-01T10:01:54","guid":{"rendered":"https:\/\/hostify.vn\/blog\/?p=8558"},"modified":"2022-04-01T17:01:54","modified_gmt":"2022-04-01T10:01:54","slug":"ssh-la-gi-cach-su-dung-ssh-chi-tiet-cho-nguoi","status":"publish","type":"post","link":"https:\/\/www.hostify.vn\/blog\/ssh-la-gi-cach-su-dung-ssh-chi-tiet-cho-nguoi\/","title":{"rendered":"SSH l\u00e0 g\u00ec? C\u00e1ch s\u1eed d\u1ee5ng SSH chi ti\u1ebft cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"\n

N\u1ebfu b\u1ea1n v\u1eabn c\u00f2n b\u0103ng kho\u0103n ch\u01b0a bi\u1ebft b\u1eaft \u0111\u1ea7u d\u1ef1ng m\u1ed9t website t\u1eeb \u0111\u00e2u, t\u1ea1i \u0111\u00e2y<\/a> s\u1ebd h\u1ed7 tr\u1ee3 b\u1ea1n t\u1ea5t c\u1ea3 nh\u1eefng g\u00ec b\u1ea1n mong mu\u1ed1n. V\u00e0o Fanpage<\/a> \u0111\u1ec3 c\u00f3 th\u00eam nhi\u1ec1u \u01b0u \u0111\u00e3i.\u00a0<\/p>\n\n\n\n

1. SSH l\u00e0 gi?<\/h2>\n\n\n\n
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\"SSH

SSH l\u00e0 m\u1ed9t giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ki\u1ebfm so\u00e1t v\u00e0 ch\u1ec9nh s\u1eeda server th\u00f4ng qua Internet<\/p><\/div>\n<\/figure>\n<\/div>\n\n\n\n

SSH<\/strong> l\u00e0 m\u1ed9t giao th\u1ee9c \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ki\u1ebfm so\u00e1t v\u00e0 ch\u1ec9nh s\u1eeda server th\u00f4ng qua Internet. B\u1ea5t k\u1ec3 user Linux ho\u1eb7c macOS n\u00e0o c\u0169ng \u0111\u1ec1u c\u00f3 th\u1ec3 SSH<\/strong> t\u1edbi server t\u1eeb xa tr\u1ef1c ti\u1ebfp t\u1eeb c\u1eeda s\u1ed5 terminal.<\/p>\n\n\n\n

SSH<\/strong> t\u1ea1o ra nh\u1eb1m thay th\u1ebf cho tr\u00ecnh Telnet v\u1ed1n kh\u00f4ng c\u00f3 m\u00e3 h\u00f3a v\u00e0 s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt cryptographic \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ea5t c\u1ea3 giao ti\u1ebfp g\u1eedi t\u1edbi v\u00e0 g\u1eedi t\u1eeb server t\u1eeb xa di\u1ec5n ra trong t\u00ecnh tr\u1ea1ng m\u00e3 h\u00f3a.<\/p>\n\n\n\n

N\u00f3 cung c\u1ea5p thu\u1eadt to\u00e1n \u0111\u1ec3 ch\u1ee9ng th\u1ef1c ng\u01b0\u1eddi d\u00f9ng t\u1eeb xa, chuy\u1ec3n input t\u1eeb client t\u1edbi host, v\u00e0 relay k\u1ebft qu\u1ea3 tr\u1ea3 v\u1ec1 t\u1edbi kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n

V\u1edbi \u01b0u \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1c giao th\u1ee9c c\u0169 l\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u b\u1ea3o m\u1eadt gi\u1eefa client v\u00e0 host v\u00e0 kh\u1ea3 n\u0103ng m\u00e3 ho\u00e1. Host \u0111\u1ea1i di\u1ec7n cho s\u1ef1 k\u1ebft n\u1ed1i gi\u1eefa m\u00e1y ch\u1ee7 t\u1eeb xa client \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n v\u1edbi m\u1ee5c \u0111\u00edch truy c\u1eadp t\u1edbi host.<\/p>\n\n\n\n

2. M\u1eadt \u0111\u1ed9 b\u1ea3o m\u1eadt c\u1ee7a SSH l\u00e0 g\u00ec?<\/h2>\n\n\n\n

M\u1eadt \u0111\u1ed9 b\u1ea3o m\u1eadt ho\u1ea1t \u0111\u1ed9ng b\u1edfi 3 b\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a SSH<\/strong> l\u00e0: \u0111\u1ecbnh danh host, m\u00e3 ho\u00e1 v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 ch\u1ee9ng th\u1ef1c.<\/em><\/p>\n\n\n\n

Giao th\u1ee9c\u00a0SSH<\/strong>\u00a0cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 c\u1ee7a m\u00e1y ch\u1ee7 nh\u01b0 x\u00e1c th\u1ef1c, m\u00e3 h\u00f3a, x\u00e1c minh t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u v\u00e0 x\u00e1c th\u1ef1c kh\u00e1ch h\u00e0ng. M\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c\u00a0SSH<\/strong>\u00a0x\u00e1c th\u1ef1c th\u00f4ng qua vi\u1ec7c th\u1ef1c hi\u1ec7n\u00a0DSA<\/strong>,\u00a0RSA<\/strong>\u00a0ho\u1eb7c\u00a0ECDSA<\/strong>\u00a0thu\u1eadt to\u00e1n m\u00e3 kh\u00f3a c\u00f4ng khai.<\/p>\n\n\n\n

3. C\u00e1ch s\u1eed d\u1ee5ng SSH chi ti\u1ebft cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u<\/h2>\n\n\n\n

\u00a0L\u1ec7nh SSH<\/strong> c\u00f3 3 ph\u1ea7n: ssh {user}@{host}.\u00a0SSH<\/strong> c\u00f3 \u00fd ngh\u0129a l\u00e0 ng\u01b0\u1eddi d\u00f9ng mu\u1ed1n m\u1edf k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c m\u00e3 ho\u00e1 Secure Shell Connection.<\/p>\n\n\n\n