{"id":24975,"date":"2023-01-30T09:16:23","date_gmt":"2023-01-30T09:16:23","guid":{"rendered":"http:\/\/localhost\/helpold\/?p=24088"},"modified":"2025-01-02T09:30:54","modified_gmt":"2025-01-02T06:00:54","slug":"ssh-troubleshoot","status":"publish","type":"post","link":"https:\/\/www.arvancloud.ir\/help\/fa\/ssh-troubleshoot\/","title":{"rendered":"\u0628\u0631\u0631\u0633\u06cc \u0648 \u062d\u0644 \u0645\u0634\u06a9\u0644 SSH \u0628\u0647 \u0627\u0628\u0631\u06a9"},"content":{"rendered":"<p dir=\"rtl\">SSH \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u062f\u0627\u0648\u0644 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u060c\u200c \u0627\u06cc\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0648\u06cc \u062a\u0645\u0627\u0645\u06cc \u0627\u0628\u0631\u06a9\u200c\u0647\u0627 \u0628\u0627 \u0633\u06cc\u0633\u062a\u0645\u200c\u0639\u0627\u0645\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0627\u0632 \u067e\u06cc\u0634 \u0646\u0635\u0628 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u0631\u0642\u0631\u0627\u0631\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 \u0645\u062b\u0644 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0648 \u067e\u0633\u0648\u0631\u062f \u0646\u06cc\u0632 \u067e\u0633 \u0627\u0632 \u0633\u0627\u062e\u062a \u0627\u0628\u0631\u06a9\u060c \u0647\u0645 \u0628\u0647\u200c\u0634\u06a9\u0644 \u0627\u06cc\u0645\u06cc\u0644 \u0648 \u0647\u0645 \u0628\u0647\u200c\u0634\u06a9\u0644 \u067e\u0627\u067e \u0622\u067e \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0628\u0647 \u0627\u0631\u0633\u0627\u0644 \u062e\u0648\u0627\u0647\u062f \u0634\u062f.<\/p>\n<p dir=\"rtl\">\u0627\u06af\u0631\u062f\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 SSH \u0628\u0647 \u0627\u0628\u0631\u06a9 \u062e\u0648\u062f \u0628\u0627 \u0645\u0634\u06a9\u0644 \u0645\u0648\u0627\u062c\u0647 \u0634\u062f\u0647\u200c\u0627\u06cc\u062f\u060c \u067e\u06cc\u0634\u0646\u0647\u0627\u062f \u0645\u06cc\u200c\u06a9\u0646\u06cc\u0645\u00a0\u0627\u06cc\u0646 \u0645\u0637\u0644\u0628 \u0631\u0627 \u0645\u0637\u0627\u0644\u0639\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<p dir=\"rtl\"><strong>\u0642\u062f\u0645 \u0627\u0648\u0644: \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0631\u0648\u0634\u0646 \u0628\u0648\u062f\u0646 \u0627\u0628\u0631\u06a9<\/strong><br \/>\n\u0644\u0637\u0641\u0646 \u0628\u0647 \u067e\u0646\u0644 \u06a9\u0627\u0631\u0628\u0631\u06cc \u062e\u0648\u062f \u0631\u0641\u062a\u0647 \u0648 \u0645\u0637\u0645\u06cc\u0646 \u0634\u0648\u06cc\u062f \u0627\u0628\u0631\u06a9 \u0634\u0645\u0627 \u0631\u0648\u0634\u0646 \u0627\u0633\u062a.<\/p>\n<p dir=\"rtl\"><strong>\u0642\u062f\u0645 \u062f\u0648\u0645: \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u0631\u062a\u0628\u0627\u0637 \u0627\u06cc\u0646\u062a\u0631\u0646\u062a\u06cc \u0628\u0647 \u0627\u0628\u0631\u06a9<\/strong><br \/>\n\u0633\u0627\u062f\u0647\u200c\u062a\u0631\u06cc\u0646 \u0648 \u062f\u0631 \u0639\u06cc\u0646 \u062d\u0627\u0644 \u06a9\u0627\u0631\u0627\u062a\u0631\u06cc\u0646 \u0631\u0648\u0634 \u0628\u0631\u0627\u06cc \u0641\u0647\u0645\u06cc\u062f\u0646 \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639\u060c \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 Ping \u0628\u0631\u0627\u06cc \u0628\u0631\u0631\u0633\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u060c \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0644\u0637\u0641\u0646 \u0622\u062f\u0631\u0633 IP \u0627\u0628\u0631\u06a9 \u062e\u0648\u062f \u0631\u0627 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u067e\u06cc\u0646\u06af \u06a9\u0646\u06cc\u062f \u062a\u0627 \u0627\u0632 \u062f\u0627\u0634\u062a\u0646 \u0627\u0631\u062a\u0628\u0627\u0637 \u0627\u06cc\u0646\u062a\u0631\u0646\u062a\u06cc \u0628\u0647 \u0622\u0646 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<pre dir=\"ltr\"><code>Ping my_server_ip_address<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u0628\u0631\u0642\u0631\u0627\u0631 \u0628\u0648\u062f \u0648 \u0627\u0628\u0631\u06a9 \u0628\u0647 \u0627\u0635\u0644\u0627\u062d \u067e\u06cc\u0646\u06af \u0634\u062f\u060c\u200c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u06cc\u06a9\u06cc \u0627\u0632 \u067e\u06cc\u0627\u0645\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u0647\u0646\u06af\u0627\u0645 SSH \u0632\u062f\u0646 \u0645\u0634\u0627\u0647\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<blockquote>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">ssh: connect to host [&#8230;] port 22: operation timed out\u00a0\u2022<\/p>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">ssh: connect to host [&#8230;] port 22: connection refused\u00a0\u2022<\/p>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">(Permission denied (publickey\u00a0\u2022<\/p>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">ssh_exchange_identification: read: Connection reset by peer\u00a0\u2022<\/p>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">REMOTE HOST IDENTIFICATION HAS CHANGED\u00a0\u2022<\/p>\n<p class=\"wysiwyg-text-align-left\" dir=\"rtl\" style=\"text-align: left;\">!WARNING: UNPROTECTED PRIVATE KEY FILE\u00a0\u2022<\/p>\n<\/blockquote>\n<h2 dir=\"rtl\">\u0645\u0634\u06a9\u0644 Connection Timeout<\/h2>\n<p dir=\"rtl\">\u0628\u0647 \u0645\u0639\u0646\u0627\u06cc \u0627\u06cc\u0646\u200c\u06a9\u0647 SSH Client \u0633\u0639\u06cc \u062f\u0631 \u0627\u06cc\u062c\u0627\u062f \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 \u0633\u0631\u0648\u0631 \u0648 \u0633\u0648\u06a9\u062a \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 ssh \u062f\u0627\u0634\u062a\u0647 \u0627\u0633\u062a \u0627\u0645\u0627 \u0633\u0631\u0648\u0631 \u0646\u062a\u0648\u0627\u0646\u0633\u062a\u0647 \u062f\u0631 \u0645\u062f\u062a \u0632\u0645\u0627\u0646 \u0645\u0639\u06cc\u0646\u06cc \u0628\u0647 Client \u067e\u0627\u0633\u062e \u0628\u062f\u0647\u062f \u0648 \u0627\u0631\u062a\u0628\u0627\u0637 Timeout \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p dir=\"rtl\"><strong>\u062d\u0644 \u0645\u0634\u06a9\u0644:<\/strong><\/p>\n<ul dir=\"rtl\">\n<li>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0622\u062f\u0631\u0633 IP \u062f\u0631\u0633\u062a \u0631\u0627 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0647\u200c\u0627\u06cc\u062f.<\/li>\n<li>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0627\u06cc\u0646\u062a\u0631\u0646\u062a \u0634\u0645\u0627 \u0645\u0634\u06a9\u0644\u06cc \u0628\u0627 \u067e\u0648\u0631\u062a SSH ( \u0645\u0639\u0645\u0648\u0644\u0627\u0646 \u067e\u0648\u0631\u062a \u06f2\u06f2) \u0646\u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u060c \u0628\u0631\u0627\u06cc \u0627\u06cc\u0646 \u0645\u0646\u0638\u0648\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u062f\u06cc\u06af\u0631 SSH \u0628\u0632\u0646\u06cc\u062f.<\/li>\n<li>\u0628\u0631\u0631\u0633\u06cc \u0648\u0636\u0639\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 SSH \u0633\u0645\u062a \u0633\u0631\u0648\u0631<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0627\u0632 \u0637\u0631\u06cc\u0642 \u067e\u0646\u0644 \u0627\u0628\u0631\u0622\u0631\u0648\u0627\u0646 \u0648\u0627\u0631\u062f \u06a9\u0646\u0633\u0648\u0644 \u0627\u0628\u0631\u06a9 \u062e\u0648\u062f \u0634\u0648\u06cc\u062f \u0648 \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u062f\u0631 Input Chain \u0628\u0647 \u062f\u0646\u0628\u0627\u0644 \u0642\u0648\u0627\u0646\u06cc\u0646\u06cc \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0628\u0631\u0627\u06cc \u067e\u0648\u0631\u062a \u06f2\u06f2 Allow \u0628\u0627\u0634\u062f. \u062f\u0631 \u0646\u0638\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0647 \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f.<\/p>\n<pre><code>iptables -nL<\/code><\/pre>\n<p dir=\"rtl\">\u062f\u0631 \u0627\u06cc\u0646 \u0642\u0633\u0645\u062a \u0646\u0628\u0627\u06cc\u062f \u0647\u06cc\u0686 \u0642\u0627\u0646\u0648\u0646\u06cc \u067e\u0648\u0631\u062a \u06f2\u06f2 \u0631\u0627 Deny \u06a9\u0646\u062f \u06cc\u0627 \u0628\u0647 \u0627\u0635\u0637\u0644\u0627\u062d \u0622\u0646 \u0631\u0627 \u0628\u0628\u0646\u062f\u062f.<\/p>\n<ul dir=\"rtl\">\n<li>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0648\u0636\u0639\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 SSH<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc \u062f\u0627\u0634\u062a\u0646 \u0628\u0647 \u06a9\u0646\u0633\u0648\u0644 \u0627\u0628\u0631\u06a9 \u062f\u0631 \u067e\u0646\u0644 \u0627\u0628\u0631 \u0622\u0631\u0648\u0627\u0646\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0648\u0636\u0639\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0627\u0646\u062c\u0627\u0645 \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u062f\u0631 \u067e\u0646\u0644 \u06a9\u0627\u0631\u0628\u0631\u06cc \u062e\u0648\u062f \u0644\u0627\u06af\u06cc\u0646 \u06a9\u0631\u062f\u0647 \u0648 \u062f\u0631 \u06a9\u0646\u0633\u0648\u0644 \u0627\u0628\u0631\u06a9 \u0645\u0648\u0631\u062f \u0646\u0638\u0631\u060c \u0628\u0627 \u0648\u0627\u0631\u062f \u06a9\u0631\u062f\u0646 \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0627\u0632 \u0648\u0636\u0639\u06cc\u062a \u0633\u0631\u0648\u06cc\u0633 \u0645\u0637\u0644\u0639 \u0634\u0648\u06cc\u062f:<\/p>\n<pre><code>systemctl status sshd<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u0648\u0636\u0639\u06cc\u062a \u0631\u0648\u0634\u0646 \u0646\u0628\u0648\u062f\u060c \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0622\u0646 \u0631\u0627 \u0631\u0648\u0634\u0646 \u0648 \u062f\u0648\u0628\u0627\u0631\u0647 \u062a\u0633\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code>systemctl start sshd<\/code><\/pre>\n<ul dir=\"rtl\">\n<li>\u0686\u06a9 \u06a9\u0631\u062f\u0646 \u0648\u0636\u0639\u06cc\u062a \u067e\u0648\u0631\u062a \u0633\u0631\u0648\u06cc\u0633 SSH<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0627\u06cc\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0628\u0647\u200c\u0634\u06a9\u0644 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0631\u0648\u06cc \u067e\u0648\u0631\u062a \u06f2\u06f2 \u0641\u0639\u0627\u0644 \u0645\u06cc\u200c\u0634\u0648\u062f \u0627\u0645\u0627 \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644 \u0645\u062e\u062a\u0644\u0641 \u0627\u0645\u0646\u06cc\u062a\u06cc\u060c \u067e\u0648\u0631\u062a \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0631\u0627 \u0628\u0647 \u067e\u0648\u0631\u062a\u200c\u0647\u0627\u06cc \u062f\u06cc\u06af\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u062f\u0647\u0646\u062f. \u0628\u0631\u0627\u06cc \u0686\u06a9 \u06a9\u0631\u062f\u0646 \u067e\u0648\u0631\u062a \u0627\u06cc\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0627\u0632 \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code>grep Port \/etc\/ssh\/sshd_config<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0633\u0631\u0648\u06cc\u0633 \u062f\u0631 \u0648\u0636\u0639\u06cc\u062a Running \u0627\u0633\u062a \u0628\u0627 \u062f\u0633\u062a\u0648\u0631 \u0632\u06cc\u0631 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0648\u0636\u0639\u06cc\u062a \u0633\u0648\u06a9\u062a \u0622\u0646 \u0631\u0627 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code>ss -plnt<\/code><\/pre>\n<ul dir=\"rtl\">\n<li>\u0628\u0631\u0631\u0633\u06cc \u0648\u0636\u0639\u06cc\u062a \u0641\u0627\u06cc\u0631\u0648\u0627\u0644<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 Firewall \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code>firewall-cmd --zone=public \u2013add-service=ssh<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 UFW \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f (\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f):<\/p>\n<pre><code>sudo ufw allow ssh<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 IP-Tables \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f(\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f):<\/p>\n<pre><code>sudo iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT<\/code><\/pre>\n<h2 dir=\"rtl\">\u0645\u0634\u06a9\u0644 Connection Refused<\/h2>\n<p dir=\"rtl\">\u067e\u06cc\u063a\u0627\u0645 Connection Refused \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0631 \u062d\u0627\u0644\u062a\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u062e \u062f\u0647\u062f:<\/p>\n<ul dir=\"rtl\">\n<li>\u0647\u06cc\u0686 \u0633\u0631\u0648\u06cc\u0633\u06cc \u0631\u0648\u06cc \u0622\u062f\u0631\u0633 IP \u0648 \u067e\u0648\u0631\u062a\u06cc \u06a9\u0647 \u062f\u0631\u062e\u0648\u0627\u0633\u062a \u062f\u0627\u062f\u0647\u200c\u0627\u06cc\u062f\u060c \u0633\u0631\u0648\u06cc\u0633\u200c\u062f\u0647\u06cc \u0646\u0645\u06cc\u200c\u06a9\u0646\u062f.<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0631\u0627\u0647 \u062d\u0644(\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f):<\/p>\n<pre><code>sudo apt install openssh-server<\/code><\/pre>\n<ul dir=\"rtl\">\n<li>\u0633\u0631\u0648\u06cc\u0633 \u0645\u0648\u0631\u062f \u0646\u0638\u0631 \u062e\u0627\u0645\u0648\u0634 \u0628\u0648\u062f\u0647 \u0648 \u062f\u0631 \u062d\u0627\u0644\u062a Running \u0646\u06cc\u0633\u062a.<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0631\u0627\u0647 \u062d\u0644:<\/p>\n<pre><code>systemctl status sshd\r\nsystemctl restart sshd<\/code><\/pre>\n<ul dir=\"rtl\">\n<li>\u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u0633\u0631\u0648\u0631 \u06cc\u0627 \u067e\u0646\u0644 \u0627\u0628\u0631\u06cc \u062c\u0644\u0648\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0633\u0631\u0648\u0631 \u0631\u0627 \u0645\u06cc\u200c\u06af\u06cc\u0631\u062f \u06a9\u0647 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647\u00a0<a href=\"https:\/\/docs.arvancloud.ir\/fa\/cloud-server\/firewall\/\" target=\"_blank\" rel=\"noopener nofollow\">\u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/a>\u00a0\u0622\u0646\u200c \u0631\u0627 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u06a9\u0646\u06cc\u062f.<\/li>\n<\/ul>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 Firewall \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code>firewall-cmd --zone=public \u2013add-service=ssh<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 UFW \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f(\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f):<\/p>\n<pre><code>sudo ufw allow ssh<\/code><\/pre>\n<p dir=\"rtl\">\u0627\u06af\u0631 \u0627\u0632 IP-Tables \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f(\u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f):<\/p>\n<pre><code>sudo iptables -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT<\/code><\/pre>\n<h2 dir=\"rtl\">\u0645\u0634\u06a9\u0644 Remote host identification has changed<\/h2>\n<p dir=\"rtl\">\u0633\u0631\u0648\u0631\u0647\u0627 \u062f\u0627\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0647\u200e\u0627\u06cc \u0628\u0647 \u0646\u0627\u0645 Fingerprint \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062e\u0644\u0627\u0635\u0647\u200c\u0627\u06cc \u0627\u0632 \u06a9\u0644\u06cc\u062f \u0639\u0645\u0648\u0645\u06cc \u0633\u0631\u0648\u0631 \u0627\u0633\u062a. \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u0628\u0631\u0627\u06cc \u0627\u0648\u0644\u06cc\u0646 \u0628\u0627\u0631 \u0627\u0632 \u0637\u0631\u06cc\u0642 SSH \u0628\u0647 \u06cc\u06a9 \u0633\u0631\u0648\u0631 \u0645\u062a\u0635\u0644 \u0645\u06cc\u200c\u0634\u0648\u06cc\u062f \u0627\u06cc\u0646 \u0634\u0646\u0627\u0633\u0647 \u062f\u0631 \u0644\u067e\u200c\u062a\u0627\u067e \u06cc\u0627 \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631 \u0634\u0645\u0627 \u0630\u062e\u06cc\u0631\u0647 \u0645\u06cc\u200c\u0634\u0648\u062f \u062a\u0627 \u0628\u0631\u0627\u06cc \u062f\u0641\u0639\u0627\u062a \u0628\u0639\u062f \u062c\u0647\u062a \u0627\u062d\u0631\u0627\u0632 \u0647\u0648\u06cc\u062a \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0634\u0648\u062f.<\/p>\n<pre><code>@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r\n@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @\r\n@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\r\nIT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!\r\nSomeone could be eavesdropping on you right now (man-in-the-middle attack)!\r\nIt is also possible that a host key has just been changed.\r\nThe fingerprint for the ECDSA key sent by the remote host is\r\nSHA256:44m+Q5T0+0bG8XnbEkdusJPuCcYt5OsYt6P8LJXppzQ.\r\nPlease contact your system administrator.\r\nAdd correct host key in \/home\/geek\/.ssh\/known_hosts to get rid of this message.\r\nOffending ECDSA key in \/home\/geek\/.ssh\/known_hosts:115\r\n remove with:\r\n ssh-keygen -f \"\/home\/geek\/.ssh\/known_hosts\" -R \"37.152.183.81\"\r\nECDSA host key for 37.152.183.81 has changed and you have requested strict checking.\r\nHost key verification failed.<\/code><\/pre>\n<p dir=\"rtl\">\u067e\u06cc\u063a\u0627\u0645 \u0628\u0627\u0644\u0627 \u06cc\u06a9 \u0646\u0645\u0648\u0646\u0647 \u0627\u0632 \u0634\u0631\u0627\u06cc\u0637\u06cc \u0627\u0633\u062a \u06a9\u0647 Fingerprint \u0633\u0631\u0648\u0631 \u062a\u063a\u06cc\u06cc\u0631 \u06cc\u0627\u0641\u062a\u0647 \u0648 \u0634\u0645\u0627 \u0633\u0639\u06cc \u062f\u0631 \u0627\u062a\u0635\u0627\u0644 \u0628\u0647 \u0633\u0631\u0648\u0631 \u062f\u0627\u0631\u06cc\u062f. \u0627\u06af\u0631 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0646\u062f\u0627\u0631\u06cc\u062f \u0627\u0632 \u0686\u0647 \u0634\u0628\u06a9\u0647\u200c\u0627\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f \u0648 \u0627\u062d\u062a\u0645\u0627\u0644 \u0648\u062c\u0648\u062f \u0647\u06a9\u0631 \u06cc\u0627 \u0634\u062e\u0635 \u0648\u0627\u0633\u0637 \u0628\u06cc\u0646 \u0627\u0631\u062a\u0628\u0627\u0637 \u0634\u0645\u0627 \u0648 \u0633\u0631\u0648\u0631 \u0631\u0627 \u0645\u06cc\u200c\u062f\u0647\u06cc\u062f\u060c \u0627\u06cc\u0646 \u0645\u0648\u0636\u0648\u0639 \u0627\u0647\u0645\u06cc\u062a \u067e\u06cc\u062f\u0627 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<h3 dir=\"rtl\">\u0686\u0647 \u0632\u0645\u0627\u0646\u06cc Fingerprint \u062a\u063a\u06cc\u06cc\u0631 \u0645\u06cc\u200c\u06a9\u0646\u062f\u061f<\/h3>\n<p dir=\"rtl\">\u06f1- \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u067e\u0646\u0644 \u0627\u0642\u062f\u0627\u0645 \u0628\u0647 \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0633\u06cc\u0633\u062a\u0645\u200c\u0639\u0627\u0645\u0644 \u06a9\u0631\u062f\u0647 \u0628\u0627\u0634\u06cc\u062f \u06a9\u0644\u06cc\u062f \u0639\u0645\u0648\u0645\u06cc \u0633\u0631\u0648\u0631 \u0645\u062c\u062f\u062f \u062a\u0648\u0644\u06cc\u062f \u062e\u0648\u0627\u0647\u062f \u0634\u062f \u0648 \u067e\u06cc\u0631\u0648 \u0622\u0646 Fingerprint \u0646\u06cc\u0632 \u0639\u0648\u0636 \u0645\u06cc\u200c\u0634\u0648\u062f.<\/p>\n<p dir=\"rtl\">\u06f2- \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 \u0633\u0631\u0648\u06cc\u0633 SSH \u0631\u0627 \u0627\u0632 \u0633\u0631\u0648\u0631 \u062d\u0630\u0641 \u0648 \u0645\u062c\u062f\u062f \u0646\u0635\u0628 \u06a9\u0646\u06cc\u062f.<\/p>\n<p dir=\"rtl\">\u0631\u0627\u0647 \u062d\u0644:<br \/>\n\u067e\u0633 \u0627\u0632 \u0627\u06cc\u0646\u200c\u06a9\u0647 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u067e\u06cc\u062f\u0627 \u06a9\u0631\u062f\u06cc\u062f \u0627\u0632 \u0634\u0628\u06a9\u0647\u200c\u06cc \u0627\u0645\u0646 \u0648 IP \u062f\u0631\u0633\u062a \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc\u200c\u06a9\u0646\u06cc\u062f\u060c \u0645\u06cc\u062a\u0648\u0627\u0646\u06cc\u062f Fingerprint \u0633\u0631\u0648\u0631 \u0631\u0648 \u0627\u0632 \u0644\u067e\u200c\u062a\u0627\u067e \u06cc\u0627 \u06a9\u0627\u0645\u067e\u06cc\u0648\u062a\u0631 \u062d\u0630\u0641 \u0648 \u0645\u062c\u062f\u062f \u0627\u0642\u062f\u0627\u0645 \u0628\u0647 \u0627\u062a\u0635\u0627\u0644 \u0628\u0647 \u0633\u0631\u0648\u0631 \u06a9\u0646\u06cc\u062f.<\/p>\n<pre><code>ssh-keygen -f \"\/home\/geek\/.ssh\/known_hosts\" -R \"37.152.183.81\"<\/code><\/pre>\n<h2 dir=\"rtl\">\u0645\u0634\u06a9\u0644 ssh_exchange_identification: read: Connection reset by peer<\/h2>\n<p dir=\"rtl\">\u0627\u06cc\u0646 \u067e\u06cc\u063a\u0627\u0645 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0639\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0647\u0627\u0633\u062a (\u0633\u0631\u0648\u0631) \u0628\u0647\u200c\u0634\u06a9\u0644 \u0646\u0627\u06af\u0647\u0627\u0646\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 TCP \u0631\u0627 \u0642\u0637\u0639 \u0645\u06cc\u200c\u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0642\u0637\u0639 \u06a9\u0631\u062f\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u062f\u0644\u0627\u06cc\u0644 \u0632\u06cc\u0631 \u0627\u062a\u0641\u0627\u0642 \u0628\u06cc\u0641\u062a\u062f.<\/p>\n<p dir=\"rtl\">\u0627\u0631\u062a\u0628\u0627\u0637 \u062a\u0648\u0633\u0637 \u0648\u06cc\u0698\u06af\u06cc Host-Based Access Control List \u0628\u0644\u0627\u06a9 \u0634\u062f\u0647 \u0627\u0633\u062a.<br \/>\n\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a IDS (intrusion Detection Systems) \u0645\u0648\u062c\u0648\u062f IP \u0634\u0645\u0627 \u0631\u0627 \u062f\u0631 \u0644\u06cc\u0633\u062a \u0641\u0627\u06cc\u0631\u0648\u0627\u0644 \u062a\u0648\u0633\u0637 Fail2ban, DenyHosts \u0622\u067e\u062f\u06cc\u062a \u06a9\u0631\u062f\u0647 \u0648 \u0645\u0627\u0646\u0639 \u0628\u0631\u0642\u0631\u0627\u0631\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 \u0634\u062f\u0647 \u0628\u0627\u0634\u0646\u062f.<\/p>\n<p dir=\"rtl\">\u0631\u0627\u0647 \u062d\u0644:<br \/>\n\u0628\u0631\u0627\u06cc \u0645\u0648\u0631\u062f DenyHosts \u0641\u0627\u06cc\u0644\u200c\u0647\u0627\u06cc \u0632\u06cc\u0631 \u0631\u0627 \u062f\u0631 \u0633\u0631\u0648\u0631 \u0628\u0631\u0631\u0633\u06cc \u06a9\u0646\u06cc\u062f \u0648 \u0627\u06af\u0631 IP \u062e\u0648\u062f\u062a\u0627\u0646 \u0631\u0627 \u06cc\u0627\u0641\u062a\u06cc\u062f \u0622\u0646 \u0631\u0627 \u067e\u0627\u06a9 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f.<\/p>\n<pre><code>sudo nano \/etc\/hosts.deny<\/code><\/pre>\n<p dir=\"rtl\">\u0647\u0645\u200c\u0686\u0646\u06cc\u0646 \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u06cc\u062f IP \u0633\u0631\u0648\u0631 \u062e\u0648\u062f \u0631\u0627 \u062f\u0631 \u0641\u0627\u06cc\u0644 \u0632\u06cc\u0631 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u062f\u0633\u062a\u0648\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u062f\u0633\u062a\u0631\u0633\u06cc Root \u0627\u062c\u0631\u0627 \u0634\u0648\u062f.<\/p>\n<pre><code>sudo nano \/etc\/hosts.allow<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>SSH \u06cc\u06a9\u06cc \u0627\u0632 \u0631\u0648\u0634\u200c\u0647\u0627\u06cc \u0645\u062a\u062f\u0627\u0648\u0644 \u0628\u0631\u0627\u06cc \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0633\u0631\u0648\u0631 \u0627\u0633\u062a\u060c\u200c \u0627\u06cc\u0646 \u0633\u0631\u0648\u06cc\u0633 \u0631\u0648\u06cc \u062a\u0645\u0627\u0645\u06cc \u0627\u0628\u0631\u06a9\u200c\u0647\u0627 \u0628\u0627 \u0633\u06cc\u0633\u062a\u0645\u200c\u0639\u0627\u0645\u0644 \u0644\u06cc\u0646\u0648\u06a9\u0633 \u0627\u0632 \u067e\u06cc\u0634 \u0646\u0635\u0628 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u0631\u0642\u0631\u0627\u0631\u06cc \u0627\u0631\u062a\u0628\u0627\u0637 \u0645\u062b\u0644 \u0646\u0627\u0645 \u06a9\u0627\u0631\u0628\u0631\u06cc \u0648 \u067e\u0633\u0648\u0631\u062f \u0646\u06cc\u0632 \u067e\u0633 \u0627\u0632 \u0633\u0627\u062e\u062a \u0627\u0628\u0631\u06a9\u060c \u0647\u0645 \u0628\u0647\u200c\u0634\u06a9\u0644 \u0627\u06cc\u0645\u06cc\u0644 \u0648 \u0647\u0645 \u0628\u0647\u200c\u0634\u06a9\u0644 \u067e\u0627\u067e \u0622\u067e \u0628\u0631\u0627\u06cc \u0634\u0645\u0627 \u0628\u0647 \u0627\u0631\u0633\u0627\u0644 \u062e\u0648\u0627\u0647\u062f \u0634\u062f. \u0627\u06af\u0631\u062f\u0631 \u0627\u0631\u062a\u0628\u0627\u0637 \u0628\u0627 SSH [&hellip;]<\/p>\n","protected":false},"author":79,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"r1_post_views_count":"3844","feedback_yes":"5","feedback_no":"39","ads_id_sidebar":"","ads_id_content":"","footnotes":""},"categories":[207,213],"tags":[],"class_list":["post-24975","post","type-post","status-publish","format-standard","hentry","category-cloud-server","category-server-troubleshooting"],"lang":"fa","translations":{"fa":24975},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/posts\/24975","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/users\/79"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/comments?post=24975"}],"version-history":[{"count":8,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/posts\/24975\/revisions"}],"predecessor-version":[{"id":28201,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/posts\/24975\/revisions\/28201"}],"wp:attachment":[{"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/media?parent=24975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/categories?post=24975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arvancloud.ir\/help\/wp-json\/wp\/v2\/tags?post=24975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}