{"id":101,"date":"2025-12-20T00:16:13","date_gmt":"2025-12-20T00:16:13","guid":{"rendered":"https:\/\/blogs.giamkichsan.com\/?p=101"},"modified":"2025-12-20T01:55:49","modified_gmt":"2025-12-20T01:55:49","slug":"huong-dan-su-dung-ssh","status":"publish","type":"post","link":"https:\/\/blogs.giamkichsan.com\/index.php\/2025\/12\/20\/huong-dan-su-dung-ssh\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng SSH"},"content":{"rendered":"\n<h5 class=\"wp-block-heading\">1. M\u1edf file key ssh l\u01b0u tr\u00ean m\u00e1y client<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>notepad $env:USERPROFILE\\.ssh\\known_hosts\n<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">2. X\u00f3a ho\u1eb7c thay \u0111\u1ed5i key trong file ssh tr\u00ean notepad<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>X\u00f3a b\u00ecnh th\u01b0\u1eddng sau \u0111\u00f3 l\u01b0u l\u1ea1i<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">3. Connect ssh t\u1edbi server<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh &#91;user]@&#91;host]<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">4. M\u1edf port ra ngo\u00e0i internet<\/h5>\n\n\n\n<pre class=\"wp-block-code\"><code>1 - Ki\u1ec3m tra UFW: sudo ufw status\n2 - N\u1ebfu ch\u01b0a b\u1eadt: sudo ufw enable\n3 - M\u1edf port:\n    sudo ufw allow 80 \/\/ M\u1edf port c\u1ee5 th\u1ec3\n    sudo ufw allow from 123.123.123.123 to any port 3306 \/\/M\u1edf cho ip c\u1ee5 th\u1ec3 \u0111\u1ec3 an to\u00e0n h\u01a1n\n    sudo ufw allow 8000:9000 \/\/ M\u1edf port theo d\u1ea3i\n    sudo ufw allow 22\/tcp  \/\/M\u1edf port k\u00e8m protocol\n    sudo ufw allow 8000:9000\/tcp \/\/ M\u1edf port theo d\u1ea3i k\u00e8m protocol\n    sudo ufw allow ssh \/\/M\u1edf port cho service\n    sudo ufw allow http \/\/M\u1edf port cho service\n    sudo ufw allow https \/\/M\u1edf port cho service\n4 - Ki\u1ec3m tra port \u0111\u00e3 m\u1edf\n    sudo ss -tuln \/\/d\u00f9ng \u0111\u1ec3 xem c\u00e1c port \u0111ang m\u1edf v\u00e0 \u0111ang l\u1eafng nghe\n    \/\/\u00dd ngh\u0129a t\u1eebng tham s\u1ed1\n       ss : Socket Statistics (thay th\u1ebf cho netstat)\n       -t : TCP\n       -u : UDP\n       -l : Listening (\u0111ang m\u1edf)\n       -n : Hi\u1ec3n th\u1ecb s\u1ed1 port (kh\u00f4ng resolve t\u00ean)\n\n    sudo ss -tuln | grep 80 \/\/L\u1ecdc port c\u1ee5 th\u1ec3\n\n5 - C\u00e1ch \u0111\u00f3ng port\n    sudo ufw deny 3306 \/\/ \u0110\u00f3ng port \u0111ang m\u1edf\n\n    sudo systemctl stop mysql \/\/ D\u1eebng service \u0111ang m\u1edf port\n    sudo systemctl disable mysql \/\/ Disable service lu\u00f4n\n\n6 - Reload l\u1ea1i UFW\n    sudo ufw reload\n\n    \n\n    \n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>1. M\u1edf file key ssh l\u01b0u tr\u00ean m\u00e1y client 2. X\u00f3a ho\u1eb7c thay \u0111\u1ed5i key trong file ssh tr\u00ean notepad 3. Connect ssh t\u1edbi server <a class=\"mh-excerpt-more\" href=\"https:\/\/blogs.giamkichsan.com\/index.php\/2025\/12\/20\/huong-dan-su-dung-ssh\/\" title=\"H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng SSH\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,1],"tags":[],"class_list":["post-101","post","type-post","status-publish","format-standard","hentry","category-ubuntu-he-dieu-hanh","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/posts\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":6,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/posts\/101\/revisions"}],"predecessor-version":[{"id":126,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/posts\/101\/revisions\/126"}],"wp:attachment":[{"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/media?parent=101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/categories?post=101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.giamkichsan.com\/index.php\/wp-json\/wp\/v2\/tags?post=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}