{"id":2552,"date":"2025-11-20T07:25:00","date_gmt":"2025-11-20T07:25:00","guid":{"rendered":"https:\/\/kub.ua\/ru\/?p=2552"},"modified":"2026-07-06T07:33:55","modified_gmt":"2026-07-06T07:33:55","slug":"zashhita-linux-vps-ssh-klyuchi-ufw-i-fail2ban","status":"publish","type":"post","link":"https:\/\/kub.ua\/ru\/articles\/zashhita-linux-vps-ssh-klyuchi-ufw-i-fail2ban\/","title":{"rendered":"\u0417\u0430\u0449\u0438\u0442\u0430 Linux VPS: SSH-\u043a\u043b\u044e\u0447\u0438, UFW \u0438 Fail2Ban"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>\u0427\u0442\u043e \u043c\u044b \u0434\u0435\u043b\u0430\u0435\u043c \u0438 \u043f\u043e\u0447\u0435\u043c\u0443<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u041d\u0435 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u043c \u043f\u043e\u0434 root \u2014 \u0441\u043e\u0437\u0434\u0430\u0435\u043c \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 \u0441 sudo.<\/li>\n\n\n\n<li>\u0412\u0445\u043e\u0434 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u043e <strong>SSH-\u043a\u043b\u044e\u0447\u0430\u043c<\/strong>, \u043f\u0430\u0440\u043e\u043b\u0438 \u043e\u0442\u043a\u043b\u044e\u0447\u0430\u0435\u043c.<\/li>\n\n\n\n<li>\u0412\u043a\u043b\u044e\u0447\u0430\u0435\u043c <strong>UFW<\/strong>: \u00ab\u0437\u0430\u043a\u0440\u044b\u0442\u043e \u0432\u0441\u0451, \u043a\u0440\u043e\u043c\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0433\u043e\u00bb.<\/li>\n\n\n\n<li>\u0423\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u0435\u043c <strong>Fail2Ban<\/strong>: \u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442 IP \u043f\u0440\u0438 \u043f\u043e\u0434\u0431\u043e\u0440\u0435 \u043f\u0430\u0440\u043e\u043b\u044f\/\u043a\u043b\u044e\u0447\u0430.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0410\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0441\u043a\u0438\u0439 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0438 \u0433\u0440\u0443\u043f\u043f\u044b<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043e\u0437\u0434\u0430\u0435\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0433\u043e \u0432 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0433\u0440\u0443\u043f\u043f\u0443 SSH \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 sudo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo adduser admin\nsudo usermod -aG sudo admin\nsudo groupadd -f sshusers\nsudo usermod -aG sshusers admin\nid admin<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0410\u0434\u043c\u0456\u043d-\u043a\u043e\u0440\u0438\u0441\u0442\u0443\u0432\u0430\u0447-\u0456-\u0433\u0440\u0443\u043f\u0438.png\" alt=\"\u0410\u0434\u043c\u0456\u043d-\u043a\u043e\u0440\u0438\u0441\u0442\u0443\u0432\u0430\u0447 \u0456 \u0433\u0440\u0443\u043f\u0438\" class=\"wp-image-2555\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0410\u0434\u043c\u0456\u043d-\u043a\u043e\u0440\u0438\u0441\u0442\u0443\u0432\u0430\u0447-\u0456-\u0433\u0440\u0443\u043f\u0438.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0410\u0434\u043c\u0456\u043d-\u043a\u043e\u0440\u0438\u0441\u0442\u0443\u0432\u0430\u0447-\u0456-\u0433\u0440\u0443\u043f\u0438-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>SSH-\u043a\u043b\u044e\u0447\u0438: \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u041b\u043e\u043a\u0430\u043b\u044c\u043d\u043e<\/strong> (Windows\/macOS\/Linux):<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh-keygen -t ed25519 -C \"key-for-admin\"<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u041d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u0435<\/strong> \u043f\u043e\u0434 root \u0438\u043b\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u043c \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u043e\u043c:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo -u admin -H bash -lc 'mkdir -p ~\/.ssh &amp;&amp; chmod 700 ~\/.ssh'\nsudo -u admin -H bash -lc 'cat >> ~\/.ssh\/authorized_keys'   # \u0432\u0441\u0442\u0430\u0432\u044c\u0442\u0435 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 *.pub, \u0437\u0430\u0442\u0435\u043c Ctrl D\nsudo -u admin -H bash -lc 'chmod 600 ~\/.ssh\/authorized_keys'<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/SSH-\u043a\u043b\u044e\u0447\u0456-\u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0456\u044f-\u0442\u0430-\u0434\u043e\u0434\u0430\u0432\u0430\u043d\u043d\u044f.png\" alt=\"SSH-\u043a\u043b\u044e\u0447\u0456 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0456\u044f \u0442\u0430 \u0434\u043e\u0434\u0430\u0432\u0430\u043d\u043d\u044f\" class=\"wp-image-2556\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/SSH-\u043a\u043b\u044e\u0447\u0456-\u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0456\u044f-\u0442\u0430-\u0434\u043e\u0434\u0430\u0432\u0430\u043d\u043d\u044f.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/SSH-\u043a\u043b\u044e\u0447\u0456-\u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0456\u044f-\u0442\u0430-\u0434\u043e\u0434\u0430\u0432\u0430\u043d\u043d\u044f-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u0430\u0436\u043d\u043e: \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440 \u043f\u043e\u043f\u0430\u0434\u0430\u0435\u0442 <strong>\u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u044b\u0439<\/strong> \u043a\u043b\u044e\u0447 .pub. \u0427\u0430\u0441\u0442\u043d\u044b\u0439 \u043a\u043b\u044e\u0447 \u0445\u0440\u0430\u043d\u0438\u0442\u0441\u044f \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0423\u0441\u0438\u043b\u0438\u0432\u0430\u0435\u043c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c SSH (\u0437\u0430\u043f\u0440\u0435\u0442 \u043f\u0430\u0440\u043e\u043b\u0435\u0439 \u0438 \u0432\u0445\u043e\u0434\u0430 \u043f\u043e\u0434 root)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0442\u043a\u0440\u043e\u0439\u0442\u0435 \u0444\u0430\u0439\u043b \/etc\/ssh\/sshd_config \u0438 \u0443\u043a\u0430\u0436\u0438\u0442\u0435:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>PermitRootLogin no\nPasswordAuthentication no\nPubkeyAuthentication yes\nAllowGroups sshusers<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0435\u0440\u0435\u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u0435 SSH:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart sshd<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u043e\u0441\u0438\u043b\u044e\u0454\u043c\u043e-SSH.png\" alt=\"\u041f\u043e\u0441\u0438\u043b\u044e\u0454\u043c\u043e SSH\" class=\"wp-image-2557\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u043e\u0441\u0438\u043b\u044e\u0454\u043c\u043e-SSH.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u043e\u0441\u0438\u043b\u044e\u0454\u043c\u043e-SSH-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0423\u0431\u0435\u0434\u0438\u0442\u0435\u0441\u044c, \u0447\u0442\u043e \u043a\u043b\u044e\u0447\u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442, <strong>\u043f\u0440\u0435\u0436\u0434\u0435<\/strong> \u0447\u0435\u043c \u043e\u0442\u043a\u043b\u044e\u0447\u0430\u0442\u044c \u043f\u0430\u0440\u043e\u043b\u0438, \u0438\u043d\u0430\u0447\u0435 \u0432\u044b \u043f\u043e\u0442\u0435\u0440\u044f\u0435\u0442\u0435 \u0434\u043e\u0441\u0442\u0443\u043f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>UFW: \u00ab\u0437\u0430\u043a\u0440\u044b\u0442\u043e \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e\u00bb<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo ufw default deny incoming\nsudo ufw default allow outgoing\nsudo ufw allow OpenSSH        # \u043f\u043e\u0440\u0442 22\nsudo ufw allow 80,443\/tcp     # \u0435\u0441\u043b\u0438 \u043d\u0443\u0436\u0435\u043d \u0432\u0435\u0431\nsudo ufw enable\nsudo ufw status numbered<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/UFW.png\" alt=\"UFW\" class=\"wp-image-2558\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/UFW.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/UFW-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u041d\u0443\u0436\u043d\u044b \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u043e\u0440\u0442\u044b (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, 8080)? \u0414\u043e\u0431\u0430\u0432\u044c\u0442\u0435 \u044f\u0432\u043d\u043e\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u043e: sudo ufw allow 8080\/tcp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Fail2Ban: \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u0438 \u0430\u0432\u0442\u043e\u0437\u0430\u043f\u0443\u0441\u043a<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo apt -y install fail2ban\nsudo systemctl enable --now fail2ban\nsudo systemctl status fail2ban --no-pager<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/Fail2Ban.png\" alt=\"Fail2Ban\" class=\"wp-image-2559\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/Fail2Ban.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/Fail2Ban-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u041d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 Fail2Ban: jail.local \u0434\u043b\u044f sshd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043e\u0437\u0434\u0430\u0439\u0442\u0435\/\u043e\u0442\u0440\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u0443\u0439\u0442\u0435<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/fail2ban\/jail.local:\n&#91;DEFAULT]\nbantime = 1h\nfindtime = 10m\nmaxretry = 5\nbackend = systemd\nbantime.increment = true\n\n&#91;sshd]\nenabled = true\nport    = ssh\nfilter  = sshd\nlogpath = \/var\/log\/auth.log\naction  = %(action_mwl)s<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0435\u0440\u0435\u0437\u0430\u043f\u0443\u0441\u0442\u0438\u0442\u0435:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart fail2ban<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041d\u0430\u043b\u0430\u0448\u0442\u0443\u0432\u0430\u043d\u043d\u044f-Fail2Ban.png\" alt=\"\u041d\u0430\u043b\u0430\u0448\u0442\u0443\u0432\u0430\u043d\u043d\u044f Fail2Ban\" class=\"wp-image-2560\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041d\u0430\u043b\u0430\u0448\u0442\u0443\u0432\u0430\u043d\u043d\u044f-Fail2Ban.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041d\u0430\u043b\u0430\u0448\u0442\u0443\u0432\u0430\u043d\u043d\u044f-Fail2Ban-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">%(action_mwl)s \u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442 \u043f\u0438\u0441\u044c\u043c\u043e (\u0435\u0441\u043b\u0438 \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043d\u0430 \u043f\u043e\u0447\u0442\u0430)   \u043b\u043e\u0433, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u0431\u043b\u043e\u043a\u0438\u0440\u0443\u0435\u0442 IP.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0418\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0438\u044f Fail2Ban \u0441 UFW (\u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u0430)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043e\u0437\u0434\u0430\u0439\u0442\u0435 \u0444\u0430\u0439\u043b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/fail2ban\/jail.d\/ufw-sshd.local:\n&#91;sshd]\nenabled = true\naction = ufw\nmaxretry = 5\nfindtime = 10m\nbantime = 1h<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438\u043c\u0435\u043d\u0438\u0442\u0435:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart fail2ban<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0406\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0456\u044f-Fail2Ban-\u0437-UFW.png\" alt=\"\u0406\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0456\u044f Fail2Ban \u0437 UFW\" class=\"wp-image-2561\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0406\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0456\u044f-Fail2Ban-\u0437-UFW.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0406\u043d\u0442\u0435\u0433\u0440\u0430\u0446\u0456\u044f-Fail2Ban-\u0437-UFW-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u041f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0440\u0430\u0431\u043e\u0442\u044b \u0438 \u043b\u043e\u0433\u0438<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo fail2ban-client status\nsudo fail2ban-client status sshd\nsudo tail -n 200 \/var\/log\/fail2ban.log\nsudo journalctl -u ssh --since \"today\"\nsudo ufw status verbose<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"461\" src=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u0435\u0440\u0435\u0432\u0456\u0440\u043a\u0430-\u0440\u043e\u0431\u043e\u0442\u0438-\u0442\u0430-\u043b\u043e\u0433\u0438.png\" alt=\"\u041f\u0435\u0440\u0435\u0432\u0456\u0440\u043a\u0430 \u0440\u043e\u0431\u043e\u0442\u0438 \u0442\u0430 \u043b\u043e\u0433\u0438\" class=\"wp-image-2553\" srcset=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u0435\u0440\u0435\u0432\u0456\u0440\u043a\u0430-\u0440\u043e\u0431\u043e\u0442\u0438-\u0442\u0430-\u043b\u043e\u0433\u0438.png 768w, https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u041f\u0435\u0440\u0435\u0432\u0456\u0440\u043a\u0430-\u0440\u043e\u0431\u043e\u0442\u0438-\u0442\u0430-\u043b\u043e\u0433\u0438-300x180.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u041a\u0430\u043a \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043a\u0443:<\/strong> \u0441 \u0434\u0440\u0443\u0433\u043e\u0433\u043e \u0443\u0437\u043b\u0430 \u0441\u0434\u0435\u043b\u0430\u0439\u0442\u0435 5\u20136 \u043d\u0435\u0432\u0435\u0440\u043d\u044b\u0445 \u043f\u043e\u043f\u044b\u0442\u043e\u043a \u0432\u0445\u043e\u0434\u0430, \u043f\u0440\u043e\u0432\u0435\u0440\u044c\u0442\u0435 status sshd \u2014 IP \u043f\u043e\u044f\u0432\u0438\u0442\u0441\u044f \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0437\u0430\u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0411\u043e\u043d\u0443\u0441\u044b \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u043f\u043e \u0436\u0435\u043b\u0430\u043d\u0438\u044e)<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0418\u0437\u043c\u0435\u043d\u0438\u0442\u044c SSH-\u043f\u043e\u0440\u0442 (\u043d\u0435 \u0437\u0430\u0449\u0438\u0442\u0430, \u043d\u043e \u0441\u043d\u0438\u0436\u0430\u0435\u0442 \u0448\u0443\u043c \u0441\u043a\u0430\u043d\u0435\u0440\u043e\u0432): Port 2222 \u0432 sshd_config   ufw allow 2222\/tcp.<\/li>\n\n\n\n<li>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u044c SFTP-\u0434\u043e\u0441\u0442\u0443\u043f (chroot) \u0434\u043b\u044f \u0433\u0440\u0443\u043f\u043f\u044b.<\/li>\n\n\n\n<li>\u0412\u043a\u043b\u044e\u0447\u0438\u0442\u044c 2FA \u0434\u043b\u044f SSH: libpam-google-authenticator   \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \/etc\/pam.d\/sshd \u0438 sshd_config (AuthenticationMethods publickey,keyboard-interactive).<\/li>\n\n\n\n<li>\u041e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u044c \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043f\u043e\u043f\u044b\u0442\u043e\u043a sudo: passwd -l root, sudo visudo \u0441 timestamp_timeout=5.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0427\u0435\u043a-\u043b\u0438\u0441\u0442 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0412\u0445\u043e\u0434 \u043d\u0430 <a href=\"\/ru\/vps-linux\/\" type=\"link\" id=\"\/ru\/vps-linux\/\">Linux VPS<\/a> \u043f\u043e \u043a\u043b\u044e\u0447\u0430\u043c \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442, \u043f\u0430\u0440\u043e\u043b\u0438 \u0438 root-\u043b\u043e\u0433\u0438\u043d \u043e\u0442\u043a\u043b\u044e\u0447\u0435\u043d\u044b.<\/li>\n\n\n\n<li>UFW: deny incoming\/allow outgoing, \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u044b \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u0435 \u043f\u043e\u0440\u0442\u044b.<\/li>\n\n\n\n<li>Fail2Ban \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u0442 sshd (\u0438 \u043f\u043e \u0436\u0435\u043b\u0430\u043d\u0438\u044e nginx\/postfix\/\u2026); \u043b\u043e\u0433\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u0435\u043d\u044b.<\/li>\n\n\n\n<li>\u041f\u0440\u043e\u0432\u0435\u0434\u0451\u043d \u0442\u0435\u0441\u0442-\u0431\u0430\u043d, \u0437\u0430\u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u044b \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0438 \u043f\u0440\u0430\u0432\u0430 \u0434\u043e\u0441\u0442\u0443\u043f\u0430.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0427\u0442\u043e \u043c\u044b \u0434\u0435\u043b\u0430\u0435\u043c \u0438 \u043f\u043e\u0447\u0435\u043c\u0443 \u0410\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0441\u043a\u0438\u0439 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u0438 \u0433\u0440\u0443\u043f\u043f\u044b \u0421\u043e\u0437\u0434\u0430\u0435\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0433\u043e \u0432 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0433\u0440\u0443\u043f\u043f\u0443 SSH \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 <a href=\"https:\/\/kub.ua\/ru\/articles\/zashhita-linux-vps-ssh-klyuchi-ufw-i-fail2ban\/\" class=\"cube-excerpt-more\">Read more<\/a><\/p>\n","protected":false},"author":5,"featured_media":2554,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[121],"class_list":["post-2552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","tag-linux-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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\u0433\u0440\u0443\u043f\u043f\u044b \u0421\u043e\u0437\u0434\u0430\u0435\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0435\u043c \u0435\u0433\u043e \u0432 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u0433\u0440\u0443\u043f\u043f\u0443 SSH \u0441 \u043f\u0440\u0430\u0432\u0430\u043c\u0438 Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/kub.ua\/ru\/articles\/zashhita-linux-vps-ssh-klyuchi-ufw-i-fail2ban\/\" \/>\n<meta property=\"og:site_name\" content=\"KUB\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-20T07:25:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-06T07:33:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/kub.ua\/ru\/wp-content\/uploads\/2026\/07\/\u0417\u0430\u0445\u0438\u0441\u0442-Linux-VPS-SSH-\u043a\u043b\u044e\u0447\u0456-UFW-\u0456-Fail2Ban.png\" \/>\n\t<meta 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