{"id":20422,"date":"2025-04-30T12:06:16","date_gmt":"2025-04-30T04:06:16","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-to-modify-the-login-port-of-a-us-server\/"},"modified":"2025-04-30T12:10:25","modified_gmt":"2025-04-30T04:10:25","slug":"how-to-modify-the-login-port-of-a-us-server","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-modify-the-login-port-of-a-us-server\/","title":{"rendered":"\u7f8e\u56fd\u670d\u52a1\u5668\u5982\u4f55\u4fee\u6539\u767b\u5f55\u7aef\u53e3\uff1f"},"content":{"rendered":"\n<p>\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u767b\u5f55\u7aef\u53e3\u662f\u7ef4\u62a4<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/us\/cn2\/\" target=\"_blank\">\u670d\u52a1\u5668\u79df\u7528<\/a>\u57fa\u7840\u8bbe\u65bd\u5b89\u5168\u6027\u7684\u5173\u952e\u65b9\u9762\u3002\u5728\u5f53\u4eca\u65e5\u76ca\u590d\u6742\u7684\u7f51\u7edc\u5a01\u80c1\u73af\u5883\u4e0b\uff0c\u9ed8\u8ba4\u670d\u52a1\u5668\u7aef\u53e3\u5df2\u6210\u4e3a\u6076\u610f\u884c\u4e3a\u8005\u7684\u4e3b\u8981\u653b\u51fb\u76ee\u6807\u3002\u901a\u8fc7\u4fee\u6539\u9ed8\u8ba4\u767b\u5f55\u7aef\u53e3\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u81ea\u52a8\u5316\u653b\u51fb\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u5c1d\u8bd5\u7684\u98ce\u9669\u3002\u672c\u7efc\u5408\u6307\u5357\u5c06\u5f15\u5bfc\u60a8\u5b8c\u6210\u5728Windows\u548cLinux\u670d\u52a1\u5668\u4e0a\u66f4\u6539\u767b\u5f55\u7aef\u53e3\u7684\u8fc7\u7a0b\uff0c\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u514d\u53d7\u6f5c\u5728\u5a01\u80c1\u3002<\/p>\n<h2><strong>\u7406\u89e3\u670d\u52a1\u5668\u7aef\u53e3\u5b89\u5168<\/strong><\/h2>\n<p>SSH\u768422\u7aef\u53e3\u548cRDP\u76843389\u7aef\u53e3\u7b49\u9ed8\u8ba4\u7aef\u53e3\u662f\u7f51\u7edc\u72af\u7f6a\u5206\u5b50\u7684\u5e38\u89c1\u653b\u51fb\u76ee\u6807\u3002\u8fd9\u4e9b\u7aef\u53e3\u9762\u4e34\u7740\u6765\u81ea\u81ea\u52a8\u5316\u673a\u5668\u4eba\u6301\u7eed\u7684\u626b\u63cf\u548c\u66b4\u529b\u7834\u89e3\u5c1d\u8bd5\uff0c\u6709\u4e9b\u670d\u52a1\u5668\u6bcf\u5929\u6536\u5230\u6570\u5343\u6b21\u767b\u5f55\u5c1d\u8bd5\u3002\u867d\u7136\u66f4\u6539\u9ed8\u8ba4\u7aef\u53e3\u5e76\u4e0d\u662f\u5b8c\u6574\u7684\u5b89\u5168\u89e3\u51b3\u65b9\u6848\uff0c\u4f46\u5b83\u901a\u8fc7\u9690\u85cf\u6027\u6765\u63d0\u4f9b\u6709\u6548\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u8fd9\u79cd\u505a\u6cd5\u4e0e\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u76f8\u7ed3\u5408\uff0c\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u670d\u52a1\u5668\u7684\u653b\u51fb\u9762\u3002<\/p>\n<p>\u7edf\u8ba1\u5206\u6790\u663e\u793a\uff0c\u4f7f\u7528\u9ed8\u8ba4\u7aef\u53e3\u7684\u670d\u52a1\u5668\u4e0e\u4f7f\u7528\u81ea\u5b9a\u4e49\u7aef\u53e3\u7684\u670d\u52a1\u5668\u76f8\u6bd4\uff0c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u5c1d\u8bd5\u6b21\u6570\u591a\u51fa\u9ad8\u8fbe95%\u3002\u8fd9\u79cd\u663e\u8457\u5dee\u5f02\u7a81\u663e\u4e86\u7aef\u53e3\u4fee\u6539\u4f5c\u4e3a\u7efc\u5408\u5b89\u5168\u7b56\u7565\u4e00\u90e8\u5206\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2><strong>\u4fee\u6539\u524d\u68c0\u67e5\u6e05\u5355<\/strong><\/h2>\n<p>\u5728\u5f00\u59cb\u4efb\u4f55\u7aef\u53e3\u66f4\u6539\u4e4b\u524d\uff0c\u5fc5\u987b\u8fdb\u884c\u5145\u5206\u51c6\u5907\uff0c\u4ee5\u9632\u6b62\u6f5c\u5728\u7684\u7cfb\u7edf\u9501\u5b9a\u6216\u670d\u52a1\u4e2d\u65ad\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u5fc5\u8981\u51c6\u5907\u6e05\u5355\uff1a<\/p>\n<ul>\n<li>\u521b\u5efa\u6240\u6709\u914d\u7f6e\u6587\u4ef6\u7684\u5168\u9762\u5907\u4efd\n<ul>\n<li>SSH\u914d\u7f6e\u6587\u4ef6<\/li>\n<li>\u9632\u706b\u5899\u89c4\u5219<\/li>\n<li>\u7cfb\u7edf\u8bbe\u7f6e<\/li>\n<\/ul>\n<\/li>\n<li>\u9a8c\u8bc1root\u6216\u7ba1\u7406\u5458\u8bbf\u95ee\u51ed\u636e\n<ul>\n<li>\u6d4b\u8bd5sudo\u6743\u9650<\/li>\n<li>\u786e\u8ba4\u7ba1\u7406\u5458\u5bc6\u7801<\/li>\n<\/ul>\n<\/li>\n<li>\u8bb0\u5f55\u73b0\u6709\u7aef\u53e3\u914d\u7f6e\n<ul>\n<li>\u5f53\u524d\u7aef\u53e3\u53f7<\/li>\n<li>\u6d3b\u52a8\u670d\u52a1<\/li>\n<li>\u4f9d\u8d56\u5173\u7cfb<\/li>\n<\/ul>\n<\/li>\n<li>\u51c6\u5907\u66f4\u65b0\u7684\u9632\u706b\u5899\u89c4\u5219\n<ul>\n<li>\u65b0\u7aef\u53e3\u5141\u8bb8<\/li>\n<li>IP\u9650\u5236<\/li>\n<\/ul>\n<\/li>\n<li>\u5efa\u7acb\u5907\u7528\u8fde\u63a5\u65b9\u6cd5\n<ul>\n<li>\u5907\u7528SSH\u7aef\u53e3<\/li>\n<li>\u7d27\u6025\u63a7\u5236\u53f0\u8bbf\u95ee<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u4fee\u6539Linux\u7cfb\u7edf\u4e0a\u7684SSH\u7aef\u53e3<\/strong><\/h2>\n<p>Linux\u670d\u52a1\u5668\u901a\u5e38\u4f7f\u7528SSH\u8fdb\u884c\u8fdc\u7a0b\u8bbf\u95ee\u3002\u66f4\u6539SSH\u7aef\u53e3\u9700\u8981\u4ed4\u7ec6\u4fee\u6539\u591a\u4e2a\u7cfb\u7edf\u7ec4\u4ef6\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u8be6\u7ec6\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n<pre>\r\n# \u6b65\u9aa41\uff1a\u8bbf\u95eeSSH\u914d\u7f6e\u5e76\u5907\u4efd\r\nsudo cp \/etc\/ssh\/sshd_config \/etc\/ssh\/sshd_config.backup\r\nsudo nano \/etc\/ssh\/sshd_config\r\n\r\n# \u6b65\u9aa42\uff1a\u627e\u5230\u5e76\u4fee\u6539\u7aef\u53e3\uff08\u9009\u62e91024\u523065535\u4e4b\u95f4\u7684\u7aef\u53e3\uff09\r\n# \u6ce8\u91ca\u6389\u65e7\u7aef\u53e3\r\n#Port 22\r\n# \u6dfb\u52a0\u65b0\u7aef\u53e3\r\nPort 2022\r\n\r\n# \u6b65\u9aa43\uff1a\u914d\u7f6eSELinux\uff08\u5982\u679c\u542f\u7528\uff09\r\nsemanage port -a -t ssh_port_t -p tcp 2022\r\n\r\n# \u6b65\u9aa44\uff1a\u66f4\u65b0\u9632\u706b\u5899\u89c4\u5219\r\nsudo ufw allow 2022\/tcp\r\nsudo ufw deny 22\/tcp\r\n\r\n# \u6b65\u9aa45\uff1a\u5b89\u5168\u91cd\u542fSSH\u670d\u52a1\r\nsudo systemctl restart sshd\r\nsudo systemctl status sshd  # \u9a8c\u8bc1\u670d\u52a1\u662f\u5426\u8fd0\u884c\r\n        <\/pre>\n<p>\u6267\u884c\u8fd9\u4e9b\u547d\u4ee4\u540e\uff0c\u5728\u6d4b\u8bd5\u65b0\u914d\u7f6e\u65f6\u4fdd\u6301\u5f53\u524d\u4f1a\u8bdd\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u786e\u4fdd\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u4e0d\u4f1a\u5931\u53bb\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n<h2><strong>\u66f4\u6539Windows\u670d\u52a1\u5668\u4e0a\u7684RDP\u7aef\u53e3<\/strong><\/h2>\n<p>Windows\u8fdc\u7a0b\u684c\u9762\u534f\u8bae\uff08RDP\uff09\u7aef\u53e3\u4fee\u6539\u9700\u8981\u6ce8\u518c\u8868\u66f4\u6539\u548c\u9002\u5f53\u7684\u9632\u706b\u5899\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u8fc7\u7a0b\uff1a<\/p>\n<pre>\r\n# \u6b65\u9aa41\uff1a\u521b\u5efa\u6ce8\u518c\u8868\u5907\u4efd\r\nreg export \"HKLM\\System\\CurrentControlSet\\Control\\Terminal Server\\WinStations\\RDP-Tcp\" rdp_backup.reg\r\n\r\n# \u6b65\u9aa42\uff1a\u4fee\u6539\u6ce8\u518c\u8868\u8bbe\u7f6e\r\n# \u5bfc\u822a\u5230\uff1a\r\nHKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\Control\\Terminal Server\\WinStations\\RDP-Tcp\r\n\r\n# \u6b65\u9aa43\uff1a\u66f4\u6539PortNumber\u503c\r\n# \u9ed8\u8ba4\u503c\u4e3a3389\uff08\u5341\u8fdb\u5236\uff09\r\n# \u793a\u4f8b\u65b0\u7aef\u53e3\uff1a3390\r\n\r\n# \u6b65\u9aa44\uff1a\u914d\u7f6eWindows\u9632\u706b\u5899\r\nNew-NetFirewallRule -DisplayName \"RDP-Custom\" -Direction Inbound -Protocol TCP -LocalPort 3390 -Action Allow\r\nRemove-NetFirewallRule -DisplayName \"Remote Desktop (TCP-In)\"  # \u53ef\u9009\uff1a\u5220\u9664\u65e7\u89c4\u5219\r\n        <\/pre>\n<h2><strong>\u9a8c\u8bc1\u548c\u6d4b\u8bd5\u7a0b\u5e8f<\/strong><\/h2>\n<p>\u6b63\u786e\u7684\u9a8c\u8bc1\u5bf9\u786e\u4fdd\u6301\u7eed\u7684\u670d\u52a1\u5668\u8bbf\u95ee\u81f3\u5173\u91cd\u8981\u3002\u8bf7\u9075\u5faa\u4ee5\u4e0b\u5168\u9762\u7684\u6d4b\u8bd5\u534f\u8bae\uff1a<\/p>\n<ul>\n<li>\u5728\u6d4b\u8bd5\u65f6\u4fdd\u6301\u5f53\u524d\u4f1a\u8bdd\uff1a\n<ul>\n<li>\u4fdd\u6301\u73b0\u6709\u8fde\u63a5\u6d3b\u52a8<\/li>\n<li>\u5728\u65b0\u7aef\u53e3\u4e0a\u6253\u5f00\u65b0\u4f1a\u8bdd<\/li>\n<li>\u5728\u5173\u95ed\u539f\u59cb\u4f1a\u8bdd\u4e4b\u524d\u9a8c\u8bc1\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n<li>\u9632\u706b\u5899\u9a8c\u8bc1\uff1a\n<ul>\n<li>\u68c0\u67e5\u5165\u7ad9\u548c\u51fa\u7ad9\u89c4\u5219<\/li>\n<li>\u9a8c\u8bc1\u7aef\u53e3\u53ef\u8bbf\u95ee\u6027<\/li>\n<li>\u4ece\u4e0d\u540c\u7f51\u7edc\u6d4b\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>\u7cfb\u7edf\u65e5\u5fd7\u76d1\u63a7\uff1a\n<ul>\n<li>\u68c0\u67e5\u9519\u8bef\u6d88\u606f<\/li>\n<li>\u76d1\u63a7\u8eab\u4efd\u9a8c\u8bc1\u5c1d\u8bd5<\/li>\n<li>\u9a8c\u8bc1\u6210\u529f\u8fde\u63a5<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9ad8\u7ea7\u5b89\u5168\u589e\u5f3a<\/strong><\/h2>\n<p>\u9664\u4e86\u7aef\u53e3\u66f4\u6539\u4e4b\u5916\uff0c\u8fd8\u8981\u5b9e\u65bd\u4ee5\u4e0b\u9ad8\u7ea7\u5b89\u5168\u63aa\u65bd\u6765\u521b\u5efa\u5f3a\u5927\u7684\u9632\u5fa1\u7cfb\u7edf\uff1a<\/p>\n<ul>\n<li>\u7aef\u53e3\u6572\u95e8\u914d\u7f6e\uff1a\n<ul>\n<li>\u987a\u5e8f\u7aef\u53e3\u6fc0\u6d3b<\/li>\n<li>\u52a8\u6001\u7aef\u53e3\u5e8f\u5217<\/li>\n<li>\u57fa\u4e8e\u65f6\u95f4\u7684\u89c4\u5219<\/li>\n<\/ul>\n<\/li>\n<li>SSH\u5bc6\u94a5\u8ba4\u8bc1\uff1a\n<ul>\n<li>4096\u4f4dRSA\u5bc6\u94a5<\/li>\n<li>\u5bc6\u7801\u4fdd\u62a4\u7684\u5bc6\u94a5\u5bf9<\/li>\n<li>\u5b9a\u671f\u5bc6\u94a5\u8f6e\u6362<\/li>\n<\/ul>\n<\/li>\n<li>\u8bbf\u95ee\u9650\u5236\uff1a\n<ul>\n<li>IP\u767d\u540d\u5355<\/li>\n<li>\u5730\u7406\u4f4d\u7f6e\u9650\u5236<\/li>\n<li>\u57fa\u4e8e\u65f6\u95f4\u7684\u8bbf\u95ee\u63a7\u5236<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u8bf7\u8bb0\u4f4f\uff0c\u670d\u52a1\u5668\u5b89\u5168\u662f\u4e00\u4e2a\u6301\u7eed\u7684\u8fc7\u7a0b\u3002\u5b9a\u671f\u5ba1\u6838\u3001\u66f4\u65b0\u548c\u76d1\u63a7\u662f\u7ef4\u62a4\u5b89\u5168\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u901a\u8fc7\u5b9e\u65bd\u672c\u6307\u5357\u4e2d\u6982\u8ff0\u7684\u7b56\u7565\uff0c\u60a8\u5df2\u7ecf\u5728\u4fdd\u62a4\u57fa\u7840\u8bbe\u65bd\u514d\u53d7\u6f5c\u5728\u5a01\u80c1\u65b9\u9762\u8fc8\u51fa\u4e86\u91cd\u8981\u4e00\u6b65\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fdd\u62a4\u670d\u52a1\u5668\u7684\u767b\u5f55\u7aef\u53e3\u662f\u7ef4\u62a4\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u5b89\u5168\u6027\u7684\u5173\u952e\u65b9\u9762\u3002\u5728\u5f53\u4eca\u65e5\u76ca\u590d\u6742\u7684\u7f51\u7edc\u5a01\u80c1\u73af\u5883\u4e0b\uff0c\u9ed8\u8ba4\u670d\u52a1\u5668\u7aef\u53e3\u5df2\u6210\u4e3a\u6076\u610f\u884c\u4e3a\u8005\u7684\u4e3b\u8981\u653b\u51fb\u76ee\u6807\u3002\u901a\u8fc7\u4fee\u6539\u9ed8\u8ba4\u767b\u5f55\u7aef\u53e3\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u81ea\u52a8\u5316\u653b\u51fb\u548c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u5c1d\u8bd5\u7684\u98ce\u9669\u3002\u672c\u7efc\u5408\u6307\u5357\u5c06\u5f15\u5bfc\u60a8\u5b8c\u6210\u5728Windows\u548cLinux\u670d\u52a1\u5668\u4e0a\u66f4\u6539\u767b\u5f55\u7aef\u53e3\u7684\u8fc7\u7a0b\uff0c\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u514d\u53d7\u6f5c\u5728\u5a01\u80c1\u3002 \u7406\u89e3\u670d\u52a1\u5668\u7aef\u53e3\u5b89\u5168 SSH\u768422\u7aef\u53e3\u548cRDP\u76843389\u7aef\u53e3\u7b49\u9ed8\u8ba4\u7aef\u53e3\u662f\u7f51\u7edc\u72af\u7f6a\u5206\u5b50\u7684\u5e38\u89c1\u653b\u51fb\u76ee\u6807\u3002\u8fd9\u4e9b\u7aef\u53e3\u9762\u4e34\u7740\u6765\u81ea\u81ea\u52a8\u5316\u673a\u5668\u4eba\u6301\u7eed\u7684\u626b\u63cf\u548c\u66b4\u529b\u7834\u89e3\u5c1d\u8bd5\uff0c\u6709\u4e9b\u670d\u52a1\u5668\u6bcf\u5929\u6536\u5230\u6570\u5343\u6b21\u767b\u5f55\u5c1d\u8bd5\u3002\u867d\u7136\u66f4\u6539\u9ed8\u8ba4\u7aef\u53e3\u5e76\u4e0d\u662f\u5b8c\u6574\u7684\u5b89\u5168\u89e3\u51b3\u65b9\u6848\uff0c\u4f46\u5b83\u901a\u8fc7\u9690\u85cf\u6027\u6765\u63d0\u4f9b\u6709\u6548\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u8fd9\u79cd\u505a\u6cd5\u4e0e\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u76f8\u7ed3\u5408\uff0c\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u670d\u52a1\u5668\u7684\u653b\u51fb\u9762\u3002 \u7edf\u8ba1\u5206\u6790\u663e\u793a\uff0c\u4f7f\u7528\u9ed8\u8ba4\u7aef\u53e3\u7684\u670d\u52a1\u5668\u4e0e\u4f7f\u7528\u81ea\u5b9a\u4e49\u7aef\u53e3\u7684\u670d\u52a1\u5668\u76f8\u6bd4\uff0c\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u5c1d\u8bd5\u6b21\u6570\u591a\u51fa\u9ad8\u8fbe95%\u3002\u8fd9\u79cd\u663e\u8457\u5dee\u5f02\u7a81\u663e\u4e86\u7aef\u53e3\u4fee\u6539\u4f5c\u4e3a\u7efc\u5408\u5b89\u5168\u7b56\u7565\u4e00\u90e8\u5206\u7684\u91cd\u8981\u6027\u3002 \u4fee\u6539\u524d\u68c0\u67e5\u6e05\u5355 \u5728\u5f00\u59cb\u4efb\u4f55\u7aef\u53e3\u66f4\u6539\u4e4b\u524d\uff0c\u5fc5\u987b\u8fdb\u884c\u5145\u5206\u51c6\u5907\uff0c\u4ee5\u9632\u6b62\u6f5c\u5728\u7684\u7cfb\u7edf\u9501\u5b9a\u6216\u670d\u52a1\u4e2d\u65ad\u3002\u4ee5\u4e0b\u662f\u8be6\u7ec6\u7684\u5fc5\u8981\u51c6\u5907\u6e05\u5355\uff1a \u521b\u5efa\u6240\u6709\u914d\u7f6e\u6587\u4ef6\u7684\u5168\u9762\u5907\u4efd SSH\u914d\u7f6e\u6587\u4ef6 \u9632\u706b\u5899\u89c4\u5219 \u7cfb\u7edf\u8bbe\u7f6e \u9a8c\u8bc1root\u6216\u7ba1\u7406\u5458\u8bbf\u95ee\u51ed\u636e \u6d4b\u8bd5sudo\u6743\u9650 \u786e\u8ba4\u7ba1\u7406\u5458\u5bc6\u7801 \u8bb0\u5f55\u73b0\u6709\u7aef\u53e3\u914d\u7f6e \u5f53\u524d\u7aef\u53e3\u53f7 \u6d3b\u52a8\u670d\u52a1 \u4f9d\u8d56\u5173\u7cfb \u51c6\u5907\u66f4\u65b0\u7684\u9632\u706b\u5899\u89c4\u5219 \u65b0\u7aef\u53e3\u5141\u8bb8 IP\u9650\u5236 \u5efa\u7acb\u5907\u7528\u8fde\u63a5\u65b9\u6cd5 \u5907\u7528SSH\u7aef\u53e3 \u7d27\u6025\u63a7\u5236\u53f0\u8bbf\u95ee \u4fee\u6539Linux\u7cfb\u7edf\u4e0a\u7684SSH\u7aef\u53e3 Linux\u670d\u52a1\u5668\u901a\u5e38\u4f7f\u7528SSH\u8fdb\u884c\u8fdc\u7a0b\u8bbf\u95ee\u3002\u66f4\u6539SSH\u7aef\u53e3\u9700\u8981\u4ed4\u7ec6\u4fee\u6539\u591a\u4e2a\u7cfb\u7edf\u7ec4\u4ef6\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u8be6\u7ec6\u6b65\u9aa4\u64cd\u4f5c\uff1a # \u6b65\u9aa41\uff1a\u8bbf\u95eeSSH\u914d\u7f6e\u5e76\u5907\u4efd sudo cp \/etc\/ssh\/sshd_config \/etc\/ssh\/sshd_config.backup sudo nano \/etc\/ssh\/sshd_config # 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