{"id":34041,"date":"2026-10-30T12:00:00","date_gmt":"2026-10-30T04:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=34041"},"modified":"2026-10-24T06:37:38","modified_gmt":"2026-10-23T22:37:38","slug":"ssh-login-auth-latency-gssapi-pam","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/tutorials\/ssh-login-auth-latency-gssapi-pam\/","title":{"rendered":"SSH \u8ba4\u8bc1\u8017\u65f6\u8fc7\u9ad8\u6392\u67e5\uff1aGSSAPI\u3001PAM \u4e0e\u4f1a\u8bdd\u521d\u59cb\u5316\u5361\u987f\u5b9a\u4f4d"},"content":{"rendered":"<p>\u4e3a\u4ec0\u4e48 SSH \u5bc6\u7801\u8f93\u5165\u6b63\u786e\u540e\u8fd8\u8981\u518d\u7b49\u5341\u51e0\u79d2\u624d\u8fdb\u5165\u7ec8\u7aef\uff1f\u8fd9\u7bc7\u6392\u67e5\u6307\u5357\u5e2e\u4f60\u89e3\u51b3\u8fd9\u4e2a\u8ba9\u4eba\u6293\u72c2\u7684\u95ee\u9898\u3002\u548c&#8221;\u8fde\u4e0d\u4e0a\u3001\u8981\u5bc6\u7801&#8221;\u8fd9\u7c7b\u786c\u6545\u969c\u4e0d\u540c\uff0c\u8ba4\u8bc1\u9636\u6bb5\u7684\u8017\u65f6\u95ee\u9898\u66f4\u9690\u853d\uff1a\u8fde\u63a5\u662f\u901a\u7684\u3001\u5bc6\u7801\u662f\u5bf9\u7684\uff0c\u4f46 <code>Last login<\/code> \u5c31\u662f\u8fdf\u8fdf\u4e0d\u51fa\u73b0\u3002\u8fd9\u79cd\u5361\u987f\u591a\u6570\u53d1\u751f\u5728\u8ba4\u8bc1\u94fe\u8def\u4e0a\u2014\u2014GSSAPI\uff08\u901a\u7528\u5b89\u5168\u670d\u52a1\u5e94\u7528\u63a5\u53e3\uff0c\u4e00\u79cd\u57fa\u4e8e Kerberos \u7684\u8ba4\u8bc1\u673a\u5236\uff09\u5728\u5c1d\u8bd5\u83b7\u53d6\u51ed\u636e\u3001PAM\uff08\u53ef\u63d2\u62d4\u8ba4\u8bc1\u6a21\u5757\uff0cLinux \u7edf\u4e00\u7684\u8ba4\u8bc1\u6846\u67b6\uff09\u5728\u9010\u4e2a\u6267\u884c\u6a21\u5757\u3001\u6216\u8005\u4f1a\u8bdd\u521d\u59cb\u5316\u5728\u7b49\u5f85\u67d0\u4e2a\u5916\u90e8\u8d44\u6e90\u3002\u672c\u6587\u6309&#8221;\u5148\u5206\u6bb5\u8ba1\u65f6\u3001\u518d\u9010\u73af\u8282\u53d6\u8bc1&#8221;\u7684\u987a\u5e8f\uff0c\u5e26\u4f60\u628a SSH \u8ba4\u8bc1\u8017\u65f6\u538b\u7f29\u5230\u79d2\u7ea7\uff0c\u6240\u6709\u547d\u4ee4\u90fd\u53ef\u4ee5\u76f4\u63a5\u590d\u5236\u6267\u884c\u3002<\/p>\n<h2>\u5148\u5206\u6bb5\u8ba1\u65f6\uff1a\u628a\u8017\u65f6\u5b9a\u4f4d\u5230\u5177\u4f53\u73af\u8282<\/h2>\n<p>\u6392\u67e5\u8ba4\u8bc1\u8017\u65f6\uff0c\u7b2c\u4e00\u6b65\u540c\u6837\u662f\u5206\u6bb5\u3002\u4e0a\u4e00\u6bb5\u8fde\u63a5\u95ee\u9898\u5e38\u7528 <code>ssh -v<\/code> \u770b\u505c\u987f\u4f4d\u7f6e\uff0c\u800c\u8ba4\u8bc1\u9636\u6bb5\u5361\u987f\u9700\u8981\u66f4\u7cbe\u7ec6\u7684\u65f6\u95f4\u7ebf\u3002\u5728\u5ba2\u6237\u7aef\u6267\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\">ssh -v -o GSSAPIAuthentication=no user@your-server-ip\n<\/code><\/pre>\n<p>\u5bf9\u6bd4\u8fd9\u6761\u547d\u4ee4\u548c\u666e\u901a <code>ssh user@your-server-ip<\/code> \u7684\u767b\u5f55\u603b\u8017\u65f6\u3002\u5982\u679c\u8df3\u8fc7 GSSAPI \u540e\u660e\u663e\u53d8\u5feb\uff0c\u6bd4\u5982\u4ece\u4e09\u5341\u79d2\u964d\u5230\u4e24\u79d2\uff0c\u95ee\u9898\u5c31\u9501\u5b9a\u5728 GSSAPI \u8ba4\u8bc1\u73af\u8282\uff1b\u5982\u679c\u4e24\u8005\u4e00\u6837\u6162\uff0c\u5219\u7ee7\u7eed\u5f80\u4e0b\u67e5 PAM \u548c\u4f1a\u8bdd\u521d\u59cb\u5316\u3002\u8fd9\u4e2a\u4e00\u5206\u949f\u5c31\u80fd\u5b8c\u6210\u7684 A\/B \u6d4b\u8bd5\uff0c\u80fd\u5e2e\u4f60\u7701\u6389\u540e\u7eed\u5927\u91cf\u65e0\u6548\u68c0\u67e5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssh-login-auth-latency-cover.webp\" alt=\"SSH \u8ba4\u8bc1\u8017\u65f6\u6392\u67e5\u5c01\u9762\uff1a\u7ec8\u7aef\u4e0e\u670d\u52a1\u5668\u4e4b\u95f4\u8ba4\u8bc1\u94fe\u8def\u7684\u5206\u6bb5\u8ba1\u65f6\u793a\u610f\" loading=\"lazy\" \/><\/p>\n<p>\u9700\u8981\u8bf4\u660e\u7684\u662f\uff0c\u8ba4\u8bc1\u8017\u65f6\u548c\u8fde\u63a5\u9636\u6bb5\u5361\u987f\u7ecf\u5e38\u88ab\u6df7\u4e3a\u4e00\u8c08\u3002\u533a\u5206\u65b9\u6cd5\u5f88\u7b80\u5355\uff1a\u5bc6\u7801\u63d0\u793a\u51fa\u73b0\u4e4b\u524d\u7684\u7b49\u5f85\u5c5e\u4e8e\u8fde\u63a5\u4e0e\u5bc6\u94a5\u4ea4\u6362\u9636\u6bb5\uff0c\u591a\u4e0e DNS\uff08\u57df\u540d\u89e3\u6790\u7cfb\u7edf\uff09\u53cd\u5411\u89e3\u6790\u6709\u5173\uff1b\u8f93\u5165\u5bc6\u7801\u4e4b\u540e\u7684\u7b49\u5f85\u624d\u5c5e\u4e8e\u672c\u6587\u8ba8\u8bba\u7684\u8ba4\u8bc1\u4e0e\u4f1a\u8bdd\u9636\u6bb5\u3002\u5148\u786e\u8ba4\u5361\u987f\u4f4d\u7f6e\uff0c\u518d\u9009\u62e9\u6392\u67e5\u8def\u5f84\uff0c\u8fd9\u662f\u6240\u6709 SSH \u53d8\u6162\u95ee\u9898\u7684\u901a\u7528\u8d77\u70b9\u3002\u5982\u679c\u4f60\u5728\u6392\u67e5\u4e2d\u53d1\u73b0\u670d\u52a1\u5668\u8fd8\u6709\u5176\u4ed6\u5b89\u5168\u914d\u7f6e\u7591\u70b9\uff0c\u5efa\u8bae\u540c\u6b65\u8fc7\u4e00\u904d\u8fd9\u4efd<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/server-security-hardening-checklist\/\">\u670d\u52a1\u5668\u5b89\u5168\u52a0\u56fa\u6e05\u5355<\/a>\uff0c\u628a\u767b\u5f55\u5165\u53e3\u7684\u52a0\u56fa\u4e00\u6b21\u505a\u5b8c\u3002<\/p>\n<h2>GSSAPI \u8ba4\u8bc1\uff1a\u9ed8\u8ba4\u5f00\u542f\u5374\u7528\u4e0d\u4e0a\u7684\u9690\u5f62\u7b49\u5f85<\/h2>\n<p>GSSAPI \u8ba4\u8bc1\u5728\u591a\u6570 Linux \u53d1\u884c\u7248\u7684 sshd \u9ed8\u8ba4\u914d\u7f6e\u4e2d\u5904\u4e8e\u5f00\u542f\u72b6\u6001\u3002\u5b83\u7684\u8bbe\u8ba1\u521d\u8877\u662f\u8ba9 Kerberos \u57df\u73af\u5883\u5185\u7684\u7528\u6237\u514d\u5bc6\u767b\u5f55\uff0c\u4f46\u5728\u6ca1\u6709 Kerberos \u57fa\u7840\u8bbe\u65bd\u7684\u666e\u901a <a href=\"https:\/\/cn.hostease.com\/vps\/\">VPS<\/a>\uff08<a href=\"https:\/\/cn.hostease.com\/vps\/\">\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u4e0a\uff0c\u8fd9\u4e2a\u673a\u5236\u6bcf\u6b21\u767b\u5f55\u90fd\u4f1a\u5c1d\u8bd5\u83b7\u53d6\u51ed\u636e\u3001\u5931\u8d25\u540e\u518d\u56de\u9000\u5230\u5bc6\u7801\u8ba4\u8bc1\uff0c\u4e2d\u95f4\u7684\u5c1d\u8bd5\u548c\u8d85\u65f6\u5c31\u53d8\u6210\u4e86\u7eaf\u7cb9\u7684\u7b49\u5f85\u3002<\/p>\n<p>\u786e\u8ba4\u8fd9\u4e00\u73af\u8282\u7684\u8017\u65f6\uff0c\u6700\u76f4\u63a5\u7684\u529e\u6cd5\u662f\u5728\u5ba2\u6237\u7aef\u5f00\u542f\u8c03\u8bd5\u8f93\u51fa\uff1a<\/p>\n<pre><code class=\"language-bash\">ssh -v user@your-server-ip 2&gt;&amp;1 | grep -E &quot;gssapi|GSSAPI|next service&quot;\n<\/code><\/pre>\n<p>\u5982\u679c\u8f93\u51fa\u4e2d\u51fa\u73b0 <code>gssapi-with-mic<\/code> \u76f8\u5173\u7684\u5c1d\u8bd5\u8bb0\u5f55\uff0c\u4e14\u4e24\u884c\u8bb0\u5f55\u4e4b\u95f4\u6709\u660e\u663e\u7684\u65f6\u95f4\u5dee\uff0c\u8bf4\u660e GSSAPI \u786e\u5b9e\u5728\u6d88\u8017\u767b\u5f55\u65f6\u95f4\u3002\u670d\u52a1\u5668\u7aef\u4e5f\u53ef\u4ee5\u4ea4\u53c9\u9a8c\u8bc1\uff1a<\/p>\n<pre><code class=\"language-bash\">sudo journalctl -u sshd --since &quot;10 minutes ago&quot; | grep -i gssapi\n<\/code><\/pre>\n<p>\u4fee\u590d\u65b9\u5f0f\u662f\u5728\u5ba2\u6237\u7aef\u6216\u670d\u52a1\u5668\u7aef\u660e\u786e\u5173\u95ed\u5b83\u3002\u5ba2\u6237\u7aef\u4e34\u65f6\u5173\u95ed\u7528 <code>ssh -o GSSAPIAuthentication=no<\/code>\uff1b\u957f\u671f\u65b9\u6848\u662f\u5728 <code>~\/.ssh\/config<\/code> \u4e2d\u5199\u5165\uff1a<\/p>\n<pre><code class=\"language-bash\">Host *\n    GSSAPIAuthentication no\n<\/code><\/pre>\n<p>\u670d\u52a1\u5668\u7aef\u5219\u4fee\u6539 <code>\/etc\/ssh\/sshd_config<\/code> \u4e2d\u7684 <code>GSSAPIAuthentication no<\/code> \u5e76\u6267\u884c <code>sudo systemctl reload sshd<\/code>\u3002\u6211\u4eec\u5efa\u8bae\u4f18\u5148\u5728\u5ba2\u6237\u7aef\u914d\u7f6e\u91cc\u5173\u95ed\uff0c\u8fd9\u6837\u4e0d\u5f71\u54cd\u540c\u4e00\u53f0\u670d\u52a1\u5668\u4e0a\u786e\u5b9e\u9700\u8981 Kerberos \u7684\u5176\u4ed6\u7528\u6237\u3002\u6539\u52a8\u540e\u7528 <code>time ssh user@host exit<\/code> \u590d\u6d4b\u4e00\u6b21\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\u8fd9\u4e00\u9879\u80fd\u76f4\u63a5\u780d\u6389\u5341\u79d2\u4ee5\u4e0a\u7684\u7b49\u5f85\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssh-login-auth-latency-flow.webp\" alt=\"SSH \u8ba4\u8bc1\u94fe\u8def\u6392\u67e5\u6d41\u7a0b\uff1aGSSAPI\u3001PAM \u4e0e\u4f1a\u8bdd\u521d\u59cb\u5316\u4e09\u4e2a\u73af\u8282\u7684\u5b9a\u4f4d\u987a\u5e8f\" loading=\"lazy\" \/><\/p>\n<h2>PAM \u6a21\u5757\uff1a\u9010\u4e2a\u6267\u884c\u94fe\u91cc\u7684\u6162\u8282\u70b9<\/h2>\n<p>PAM \u8ba4\u8bc1\u6846\u67b6\u628a\u767b\u5f55\u8fc7\u7a0b\u62c6\u6210 auth\u3001account\u3001session \u7b49\u9636\u6bb5\uff0c\u6bcf\u4e2a\u9636\u6bb5\u6309\u914d\u7f6e\u987a\u5e8f\u6267\u884c\u82e5\u5e72\u6a21\u5757\u3002\u53ea\u8981\u5176\u4e2d\u4e00\u4e2a\u6a21\u5757\u5728\u7b49\u5f85\u5916\u90e8\u8d44\u6e90\u2014\u2014\u6700\u5e38\u89c1\u7684\u6709 LDAP\uff08\u8f7b\u91cf\u76ee\u5f55\u8bbf\u95ee\u534f\u8bae\uff09\u67e5\u8be2\u3001NIS \u67e5\u8be2\u3001\u8fdc\u7a0b\u5ba1\u8ba1\u670d\u52a1\u6216 systemd-logind \u4f1a\u8bdd\u6ce8\u518c\u2014\u2014\u6574\u4e2a\u767b\u5f55\u5c31\u4f1a\u88ab\u5361\u4f4f\u3002\u8fd9\u7c7b\u95ee\u9898\u7684\u5178\u578b\u7279\u5f81\u662f\uff1a<code>ssh -v<\/code> \u663e\u793a\u8ba4\u8bc1\u5df2\u5b8c\u6210\uff0c\u4f46 shell \u8fdf\u8fdf\u4e0d\u51fa\u73b0\u3002<\/p>\n<p>\u5b9a\u4f4d\u6162\u6a21\u5757\u7684\u6807\u51c6\u5de5\u5177\u662f <code>pam_timestamp<\/code> \u4e4b\u5916\u7684\u8c03\u8bd5\u624b\u6bb5\uff1a\u76f4\u63a5\u67e5\u770b PAM \u914d\u7f6e\u5e76\u9010\u6bb5\u6392\u9664\u3002\u5148\u770b\u5f53\u524d sshd \u7528\u4e86\u54ea\u4e9b\u6a21\u5757\uff1a<\/p>\n<pre><code class=\"language-bash\">grep -v &quot;^#&quot; \/etc\/pam.d\/sshd | grep -v &quot;^$&quot;\n<\/code><\/pre>\n<p>\u91cd\u70b9\u5173\u6ce8 <code>pam_ldap.so<\/code>\u3001<code>pam_sss.so<\/code>\u3001<code>pam_systemd.so<\/code> \u8fd9\u7c7b\u4f9d\u8d56\u5916\u90e8\u670d\u52a1\u7684\u6a21\u5757\u3002\u7136\u540e\u505a\u4e00\u4e2a\u4e8c\u5206\u6d4b\u8bd5\uff1a\u5728 <code>\/etc\/pam.d\/sshd<\/code> \u9876\u90e8\u4e34\u65f6\u6ce8\u91ca\u6389\u53ef\u7591\u6a21\u5757\uff08\u6539\u524d\u5148\u5907\u4efd <code>sudo cp \/etc\/pam.d\/sshd \/etc\/pam.d\/sshd.bak<\/code>\uff09\uff0c\u91cd\u65b0\u767b\u5f55\u8ba1\u65f6\u3002\u8017\u65f6\u660e\u663e\u4e0b\u964d\u5c31\u8bf4\u660e\u627e\u5230\u4e86\u6162\u8282\u70b9\uff1b\u6062\u590d\u914d\u7f6e\u540e\uff0c\u518d\u53bb\u4fee\u590d\u90a3\u4e2a\u6a21\u5757\u80cc\u540e\u771f\u6b63\u6709\u95ee\u9898\u7684\u670d\u52a1\uff0c\u6bd4\u5982\u672c\u5730\u7f13\u5b58\u672a\u547d\u4e2d\u7684 SSSD\uff08\u7cfb\u7edf\u5b89\u5168\u670d\u52a1\u5b88\u62a4\u8fdb\u7a0b\uff0c\u8d1f\u8d23\u96c6\u4e2d\u5f0f\u8eab\u4efd\u8ba4\u8bc1\u7f13\u5b58\uff09\u3002<\/p>\n<p>\u4e00\u4e2a\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u5177\u4f53\u6848\u4f8b\uff1a<code>pam_systemd.so<\/code> \u5728\u4f1a\u8bdd\u6ce8\u518c\u65f6\u7b49\u5f85 <code>systemd-logind<\/code> \u54cd\u5e94\u3002\u5f53\u670d\u52a1\u5668\u8d1f\u8f7d\u9ad8\u6216 dbus \u670d\u52a1\u5f02\u5e38\u65f6\uff0c\u8fd9\u4e2a\u7b49\u5f85\u53ef\u8fbe\u5341\u4e94\u79d2\u4ee5\u4e0a\u3002\u7528 <code>systemctl status systemd-logind<\/code> \u68c0\u67e5\u670d\u52a1\u72b6\u6001\uff0c\u5fc5\u8981\u65f6\u91cd\u542f\u8be5\u670d\u52a1\uff0c\u6bd4\u53cd\u590d\u8c03\u6574 sshd \u914d\u7f6e\u66f4\u80fd\u6cbb\u672c\u3002PAM \u914d\u7f6e\u5c5e\u4e8e\u9ad8\u5371\u533a\u57df\uff0c\u6539\u52a8\u524d\u52a1\u5fc5\u53c2\u8003\u8fd9\u4efd<a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/foreign-cloud-server-deployment\/\">\u5916\u56fd\u4e91\u670d\u52a1\u5668\u4e0a\u7ebf\u68c0\u67e5\u6e05\u5355<\/a>\u91cc\u7684\u9a8c\u8bc1\u6d41\u7a0b\uff0c\u5148\u5728\u6d4b\u8bd5\u8d26\u53f7\u4e0a\u786e\u8ba4\u518d\u5168\u91cf\u5e94\u7528\u3002<\/p>\n<h2>\u8ba4\u8bc1\u8017\u65f6\u76d1\u63a7\uff1a\u7528\u65e5\u5fd7\u6570\u636e\u66ff\u4ee3\u4e3b\u89c2\u611f\u89c9<\/h2>\n<p>\u6392\u9664\u4e86 GSSAPI \u548c PAM \u4e4b\u540e\uff0c\u5982\u679c\u767b\u5f55\u4ecd\u7136\u504f\u6162\uff0c\u5c31\u9700\u8981\u91cf\u5316\u8bc1\u636e\u800c\u4e0d\u662f\u51ed\u611f\u89c9\u5224\u65ad\u3002sshd \u81ea\u5e26\u7684\u65e5\u5fd7\u5e76\u4e0d\u8f93\u51fa\u8017\u65f6\u660e\u7ec6\uff0c\u4f46\u7cfb\u7edf\u5ba1\u8ba1\u548c\u767b\u5f55\u8bb0\u5f55\u53ef\u4ee5\u8865\u4e0a\u8fd9\u5757\u62fc\u56fe\uff1a<\/p>\n<pre><code class=\"language-bash\">last -F | head -20\nsudo journalctl -u sshd --since today | grep &quot;Accepted&quot;\n<\/code><\/pre>\n<p>\u628a\u591a\u6b21\u767b\u5f55\u7684\u65f6\u95f4\u6233\u4e0e\u5ba2\u6237\u7aef <code>time ssh<\/code> \u7684\u5b9e\u6d4b\u7ed3\u679c\u5bf9\u7167\uff0c\u5c31\u80fd\u5efa\u7acb\u8fd9\u53f0\u670d\u52a1\u5668\u7684\u8017\u65f6\u57fa\u7ebf\u3002\u7ecf\u9a8c\u503c\u4f9b\u53c2\u8003\uff1a\u5c40\u57df\u7f51\u6b63\u5e38\u767b\u5f55\u5e94\u5728 1 \u79d2\u5185\u5b8c\u6210\uff1b\u516c\u7f51 VPS \u8003\u8651\u7f51\u7edc\u5f80\u8fd4\uff0c2 \u5230 3 \u79d2\u5185\u5c5e\u4e8e\u5065\u5eb7\u8303\u56f4\uff1b\u4efb\u4f55\u56fa\u5b9a\u91cd\u590d\u7684\u5341\u79d2\u7ea7\u5ef6\u8fdf\uff0c\u51e0\u4e4e\u90fd\u5bf9\u5e94\u67d0\u4e2a\u56fa\u5b9a\u8d85\u65f6\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u662f\u968f\u673a\u7f51\u7edc\u6296\u52a8\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssh-login-auth-latency-comparison.webp\" alt=\"SSH \u8ba4\u8bc1\u8017\u65f6\u5bf9\u6bd4\uff1a\u4f18\u5316\u524d\u591a\u73af\u8282\u4e32\u8054\u7b49\u5f85\u4e0e\u4f18\u5316\u540e\u76f4\u8fbe\u5bc6\u7801\u8ba4\u8bc1\u7684\u5dee\u5f02\" loading=\"lazy\" \/><\/p>\n<p>\u628a\u8fd9\u4e9b\u68c0\u67e5\u7eb3\u5165\u65e5\u5e38\u8fd0\u7ef4\u4e5f\u5f88\u7b80\u5355\u3002\u5982\u679c\u4f60\u7684\u670d\u52a1\u5668\u6570\u91cf\u591a\uff0c\u53ef\u4ee5\u7528 Ansible\uff08\u5f00\u6e90\u7684\u6279\u91cf\u914d\u7f6e\u7ba1\u7406\u5de5\u5177\uff09\u7edf\u4e00\u63a8\u9001 <code>sshd_config<\/code> \u548c PAM \u914d\u7f6e\u53d8\u66f4\uff0c\u907f\u514d\u9010\u53f0\u624b\u52a8\u6539\u6f0f\uff0c\u5177\u4f53\u505a\u6cd5\u53ef\u4ee5\u53c2\u8003\u8fd9\u7bc7 <a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/ansible-server-playbook-practice\/\">Ansible \u6279\u91cf\u670d\u52a1\u5668\u914d\u7f6e\u5b9e\u6218<\/a>\uff1b\u914d\u5957\u7684<a href=\"https:\/\/cn.hostease.com\/blog\/tutorials\/server-monitoring-alerts\/\">\u670d\u52a1\u5668\u76d1\u63a7\u544a\u8b66\u914d\u7f6e<\/a>\u91cc\u4e5f\u53ef\u4ee5\u52a0\u4e00\u6761\u767b\u5f55\u8017\u65f6\u7684\u62e8\u6d4b\u9879\uff0c\u8ba9\u8ba4\u8bc1\u6027\u80fd\u52a3\u5316\u5728\u7528\u6237\u6295\u8bc9\u524d\u5c31\u88ab\u53d1\u73b0\u3002<\/p>\n<h2>\u4f1a\u8bdd\u521d\u59cb\u5316\uff1a\u8ba4\u8bc1\u901a\u8fc7\u540e\u6700\u540e\u7684\u9690\u5f62\u5173\u5361<\/h2>\n<p>\u5bc6\u7801\u9a8c\u8bc1\u901a\u8fc7\u5e76\u4e0d\u7b49\u4e8e\u9a6c\u4e0a\u80fd\u62ff\u5230 shell\u3002sshd \u8fd8\u8981\u5b8c\u6210\u4f1a\u8bdd\u521d\u59cb\u5316\uff1a\u8bfb\u53d6\u767b\u5f55\u73af\u5883\u3001\u6267\u884c <code>motd<\/code> \u4e0e <code>profile<\/code> \u811a\u672c\u3001\u5efa\u7acb PTY\uff08\u4f2a\u7ec8\u7aef\uff0c\u4e3a\u4ea4\u4e92\u5f0f\u4f1a\u8bdd\u63d0\u4f9b\u7684\u7ec8\u7aef\u6a21\u62df\u5c42\uff09\u3002\u8fd9\u4e00\u6bb5\u7684\u5361\u987f\u6709\u5f88\u5f3a\u7684&#8221;\u73af\u5883\u76f8\u5173\u6027&#8221;\u2014\u2014\u540c\u4e00\u53f0\u670d\u52a1\u5668\uff0c\u4e0d\u540c\u8d26\u53f7\u3001\u4e0d\u540c\u65f6\u95f4\u7684\u767b\u5f55\u901f\u5ea6\u53ef\u80fd\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n<p>\u4e24\u4e2a\u9ad8\u9891\u6210\u56e0\u503c\u5f97\u4f18\u5148\u68c0\u67e5\u3002\u5176\u4e00\u662f <code>\/etc\/profile<\/code>\u3001<code>\/etc\/profile.d\/*.sh<\/code> \u6216\u7528\u6237\u81ea\u5df1\u7684 <code>~\/.bashrc<\/code> \u4e2d\u5b58\u5728\u8bbf\u95ee\u7f51\u7edc\u7684\u811a\u672c\uff0c\u6bd4\u5982\u68c0\u67e5\u66f4\u65b0\u3001\u540c\u6b65\u65f6\u95f4\u6216\u8c03\u7528\u5916\u90e8 API \u7684\u903b\u8f91\uff0c\u4e00\u65e6\u76ee\u6807\u5730\u5740\u4e0d\u53ef\u8fbe\uff0c\u6bcf\u6b21\u767b\u5f55\u90fd\u8981\u7b49\u5b83\u8d85\u65f6\u3002\u9010\u4e2a\u6ce8\u91ca\u6389\u53ef\u7591\u811a\u672c\u518d\u767b\u5f55\uff0c\u5c31\u80fd\u9501\u5b9a\u8087\u4e8b\u8005\u3002\u5176\u4e8c\u662f\u78c1\u76d8 I\/O \u62e5\u585e\u5bfc\u81f4\u8bfb\u53d6 shell \u914d\u7f6e\u6587\u4ef6\u53d8\u6162\uff0c\u7528 <code>iostat -x 1 3<\/code> \u89c2\u5bdf\u767b\u5f55\u77ac\u95f4\u7684 <code>%util<\/code> \u548c <code>await<\/code> \u6307\u6807\u5373\u53ef\u5224\u65ad\uff1b\u8fd9\u7c7b\u95ee\u9898\u5728\u4f4e\u914d VPS \u4e0a\u8dd1\u6570\u636e\u5e93\u6216\u5907\u4efd\u4efb\u52a1\u65f6\u5c24\u5176\u5e38\u89c1\u3002<\/p>\n<h2>\u6392\u67e5\u987a\u5e8f\u4e0e\u9a8c\u8bc1\u65b9\u6cd5\u5c0f\u7ed3<\/h2>\n<p>\u628a\u524d\u6587\u7684\u601d\u8def\u538b\u7f29\u6210\u4e00\u6761\u53ef\u590d\u7528\u7684\u6392\u67e5\u8def\u5f84\uff0c\u6309\u987a\u5e8f\u6267\u884c\u901a\u5e38\u4e09\u5341\u5206\u949f\u5185\u5c31\u80fd\u5b9a\u4f4d\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u7528 <code>time ssh user@host exit<\/code> \u5efa\u7acb\u8017\u65f6\u57fa\u7ebf\uff0c\u786e\u8ba4\u5361\u987f\u786e\u5b9e\u5b58\u5728\u4e14\u91cf\u7ea7\u660e\u786e<\/li>\n<li>\u5bf9\u6bd4 <code>ssh -v -o GSSAPIAuthentication=no<\/code>\uff0c\u5224\u65ad\u662f\u5426\u4e3a GSSAPI \u73af\u8282\u62d6\u6162<\/li>\n<li>\u68c0\u67e5 <code>\/etc\/pam.d\/sshd<\/code> \u4e2d\u7684\u5916\u90e8\u4f9d\u8d56\u6a21\u5757\uff0c\u7528\u4e8c\u5206\u6ce8\u91ca\u6cd5\u5b9a\u4f4d\u6162\u8282\u70b9<\/li>\n<li>\u6392\u67e5 profile \u811a\u672c\u4e2d\u7684\u7f51\u7edc\u8c03\u7528\u548c\u78c1\u76d8 I\/O \u72b6\u51b5\uff0c\u8986\u76d6\u4f1a\u8bdd\u521d\u59cb\u5316\u9636\u6bb5<\/li>\n<li>\u6bcf\u6b21\u6539\u52a8\u540e\u590d\u6d4b\u8ba1\u65f6\uff0c\u786e\u8ba4\u4f18\u5316\u6548\u679c\u5e76\u7559\u6863\u5bf9\u6bd4<\/li>\n<\/ol>\n<p>\u9a8c\u8bc1\u73af\u8282\u540c\u6837\u4e0d\u80fd\u7701\u3002\u6240\u6709\u914d\u7f6e\u6539\u5b8c\u540e\uff0c\u81f3\u5c11\u5b8c\u6574\u767b\u5f55\u4e09\u6b21\u5e76\u8bb0\u5f55\u8017\u65f6\uff0c\u540c\u65f6\u7528 <code>sudo sshd -t<\/code> \u6821\u9a8c sshd \u914d\u7f6e\u8bed\u6cd5\u3001\u4fdd\u6301\u73b0\u6709\u4f1a\u8bdd\u4e0d\u65ad\u5f00\u518d\u6267\u884c <code>sudo systemctl reload sshd<\/code>\uff0c\u907f\u514d\u914d\u7f6e\u5931\u8bef\u628a\u81ea\u5df1\u9501\u5728\u670d\u52a1\u5668\u5916\u9762\u3002\u5982\u679c\u4e0d\u653e\u5fc3\uff0c\u53ef\u4ee5\u5148\u5f00\u7b2c\u4e8c\u4e2a\u7ec8\u7aef\u4fdd\u6301\u8fde\u63a5\u4f5c\u4e3a\u515c\u5e95\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssh-login-auth-latency-checklist.webp\" alt=\"SSH \u767b\u5f55\u8017\u65f6\u68c0\u67e5\u6e05\u5355\uff1a\u57fa\u7ebf\u8ba1\u65f6\u3001\u5206\u6bb5\u5b9a\u4f4d\u3001\u914d\u7f6e\u4fee\u6b63\u4e0e\u590d\u6d4b\u9a8c\u8bc1\" loading=\"lazy\" \/><\/p>\n<p>SSH \u8ba4\u8bc1\u8017\u65f6\u95ee\u9898\u867d\u7136\u4e0d\u81f4\u547d\uff0c\u4f46\u6bcf\u5929\u6d88\u8017\u7684\u7b49\u5f85\u65f6\u95f4\u7d2f\u79ef\u8d77\u6765\u76f8\u5f53\u53ef\u89c2\uff0c\u800c\u4e14\u957f\u671f\u5361\u987f\u4f1a\u8ba9\u4eba\u517b\u6210\u7ed5\u8fc7\u5b89\u5168\u4e60\u60ef\u7684\u574f\u6bdb\u75c5\u3002\u5982\u679c\u4f60\u7684\u4e1a\u52a1\u8dd1\u5728\u5bf9\u767b\u5f55\u4f53\u9a8c\u548c\u7a33\u5b9a\u6027\u6709\u8981\u6c42\u7684 VPS\uff08\u865a\u62df<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u3001\u4e91\u670d\u52a1\u5668\uff08\u57fa\u4e8e\u4e91\u8ba1\u7b97\u5e73\u53f0\u5f39\u6027\u5206\u914d\u7684<a href=\"https:\/\/cn.hostease.com\/shared-hosting.html\">\u865a\u62df\u4e3b\u673a<\/a>\uff09\u6216<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u4e0a\uff0cHostease \u7684\u4e3b\u673a\u65b9\u6848\u9ed8\u8ba4\u5173\u95ed\u4e86\u4e0d\u5fc5\u8981\u7684\u8ba4\u8bc1\u5f00\u9500\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e2d\u6587\u5de5\u5355\u652f\u6301\uff0c\u9047\u5230\u8fd9\u7c7b\u73af\u5883\u95ee\u9898\u53ef\u4ee5\u76f4\u63a5\u63d0\u4ea4\u670d\u52a1\u5668\u68c0\u6d4b\u8bf7\u6c42\u3002\u5efa\u8bae\u4f60\u73b0\u5728\u5c31\u7528 <code>time ssh<\/code> \u7ed9\u81ea\u5df1\u7684\u670d\u52a1\u5668\u505a\u4e00\u6b21\u4f53\u68c0\u2014\u2014\u5982\u679c\u8017\u65f6\u8d85\u8fc7\u4e94\u79d2\uff0c\u6309\u672c\u6587\u8def\u5f84\u6392\u67e5\u4e00\u904d\uff0c\u591a\u6570\u60c5\u51b5\u4e0b\u5341\u5206\u949f\u5185\u5c31\u80fd\u6062\u590d\u79d2\u7ea7\u767b\u5f55\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SSH \u8f93\u5165\u5bc6\u7801\u540e\u5361\u987f\u6570\u5341\u79d2\uff1f\u672c\u6587\u4ece GSSAPI \u8ba4\u8bc1\u3001PAM \u6a21\u5757\u4e0e\u4f1a\u8bdd\u521d\u59cb\u5316\u4e09\u4e2a\u73af\u8282\u5b9a\u4f4d SSH \u767b\u5f55\u8ba4\u8bc1\u8017\u65f6\u8fc7\u9ad8\u7684\u539f\u56e0\uff0c\u5e76\u7ed9\u51fa\u53ef\u76f4\u63a5\u6267\u884c\u7684\u6392\u67e5\u547d\u4ee4\u4e0e\u914d\u7f6e\u4fee\u6b63\u5efa\u8bae\u3002<\/p>\n","protected":false},"author":2,"featured_media":34037,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4099],"tags":[5395,5396,373,3734,5397],"class_list":["post-34041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-gssapi","tag-pam","tag-ssh","tag-3734","tag-5397"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssh-login-auth-latency-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34041","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=34041"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34041\/revisions"}],"predecessor-version":[{"id":34153,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/34041\/revisions\/34153"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/34037"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=34041"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=34041"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=34041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}