{"id":33781,"date":"2026-10-22T18:00:00","date_gmt":"2026-10-22T10:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33781"},"modified":"2026-10-19T20:28:25","modified_gmt":"2026-10-19T12:28:25","slug":"ssl-cert-expiry-browser-warning-renewal","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/tutorials\/ssl-cert-expiry-browser-warning-renewal\/","title":{"rendered":"SSL \u8bc1\u4e66\u5230\u671f\u5bfc\u81f4\u6d4f\u89c8\u5668\u544a\u8b66\uff1a\u539f\u56e0\u6392\u67e5\u4e0e\u81ea\u52a8\u7eed\u671f\u914d\u7f6e\u65b9\u6cd5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssl-cover.webp\" alt=\"SSL \u8bc1\u4e66\u5230\u671f\u544a\u8b66\u6392\u67e5\u4e0e\u81ea\u52a8\u7eed\u671f\u914d\u7f6e\u5c01\u9762\u914d\u56fe\" loading=\"lazy\" \/><\/p>\n<p>\u65e9\u4e0a\u6253\u5f00\u7f51\u7ad9\uff0c\u6d4f\u89c8\u5668\u7a81\u7136\u5f39\u51fa&#8221;\u60a8\u7684\u8fde\u63a5\u4e0d\u662f\u79c1\u5bc6\u8fde\u63a5&#8221;\u7684\u7ea2\u8272\u8b66\u544a\uff0c\u7528\u6237\u770b\u5230 NET::ERR_CERT_DATE_INVALID \u5c31\u76f4\u63a5\u5173\u6389\u4e86\u9875\u9762\u2014\u2014\u8fd9\u662f\u7ad9\u957f\u6700\u4e0d\u60f3\u89c1\u5230\u7684\u4e00\u5e55\u3002\u672c\u6587\u4f1a\u5e26\u4f60\u89e3\u51b3\u8fd9\u4e2a\u9ad8\u9891\u6545\u969c\uff1a\u5148\u8bb2\u6e05\u695a\u4e3a\u4ec0\u4e48 SSL\uff08\u5b89\u5168\u5957\u63a5\u5c42\uff0c\u73b0\u6cdb\u6307 TLS \u4f20\u8f93\u52a0\u5bc6\u534f\u8bae\uff09\u8bc1\u4e66\u5230\u671f\u4f1a\u89e6\u53d1\u6d4f\u89c8\u5668\u544a\u8b66\uff0c\u518d\u7ed9\u51fa\u4ece\u6392\u67e5\u3001\u5e94\u6025\u6062\u590d\u5230\u81ea\u52a8\u7eed\u671f\u7684\u5b8c\u6574\u64cd\u4f5c\u8def\u5f84\uff0c\u5e2e\u52a9\u4f60\u628a\u540c\u7c7b\u544a\u8b66\u5f7b\u5e95\u6321\u5728\u4e0b\u6b21\u5230\u671f\u65e5\u4e4b\u524d\u3002<\/p>\n<h2>\u6d4f\u89c8\u5668\u4e3a\u4ec0\u4e48\u4f1a\u56e0\u4e3a\u8bc1\u4e66\u5230\u671f\u5f39\u51fa\u544a\u8b66<\/h2>\n<p>SSL \u8bc1\u4e66\u4e0a\u5199\u7740\u4e00\u4e2a\u660e\u786e\u7684&#8221;\u6709\u6548\u671f&#8221;\u5b57\u6bb5\uff08notBefore \u548c notAfter\uff09\u3002\u6d4f\u89c8\u5668\u5efa\u7acb HTTPS \u8fde\u63a5\u65f6\u4f1a\u8bfb\u53d6\u8fd9\u4e2a\u5b57\u6bb5\uff0c\u53ea\u8981\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4\u843d\u5728\u6709\u6548\u671f\u4e4b\u5916\uff0c\u5c31\u4f1a\u62d2\u7edd\u9759\u9ed8\u653e\u884c\uff0c\u6539\u800c\u5c55\u793a\u5168\u5c4f\u8b66\u544a\u3002\u8fd9\u6837\u505a\u7684\u539f\u56e0\u5f88\u76f4\u63a5\uff1a\u8bc1\u4e66\u8fc7\u671f\u610f\u5473\u7740\u7ad9\u70b9\u6240\u6709\u8005\u5df2\u7ecf\u6ca1\u6709\u901a\u8fc7 CA\uff08\u8bc1\u4e66\u9881\u53d1\u673a\u6784\uff09\u5b9a\u671f\u9a8c\u8bc1\u8eab\u4efd\uff0c\u6d4f\u89c8\u5668\u65e0\u6cd5\u786e\u8ba4\u4f60\u8bbf\u95ee\u7684\u8fd8\u662f\u539f\u6765\u90a3\u53f0\u670d\u52a1\u5668\uff0c\u4e8e\u662f\u7528\u544a\u8b66\u628a\u9009\u62e9\u6743\u4ea4\u8fd8\u7ed9\u7528\u6237\u3002<\/p>\n<p>\u51e0\u4e2a\u5bb9\u6613\u8e29\u7684\u5751\u503c\u5f97\u5148\u786e\u8ba4\uff1a<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u7cfb\u7edf\u65f6\u95f4\u9519\u8bef\u4e5f\u4f1a\u89e6\u53d1\u540c\u6837\u7684\u544a\u8b66\uff0c\u65f6\u95f4\u5feb\u4e86\u51e0\u4e2a\u6708\u65f6\uff0c\u4e00\u5f20\u597d\u597d\u7684\u8bc1\u4e66\u4f1a\u88ab\u5224\u5b9a\u4e3a&#8221;\u8fc7\u671f&#8221;\u3002<\/li>\n<li>\u53ea\u7eed\u4e86\u4e3b\u57df\u540d\u8bc1\u4e66\u3001\u5fd8\u4e86 <code>www<\/code> \u5b50\u57df\u540d\u6216\u6cdb\u57df\u540d\u8986\u76d6\u8303\u56f4\uff0c\u544a\u8b66\u4f1a\u51fa\u73b0\u5728\u90e8\u5206\u9875\u9762\u3002<\/li>\n<li>\u901a\u8fc7 CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u56de\u6e90\u7684\u7ad9\u70b9\uff0c\u6709\u65f6\u662f CDN \u4fa7\u8bc1\u4e66\u8fc7\u671f\uff0c\u800c\u4e0d\u662f\u6e90\u7ad9\u95ee\u9898\uff0c\u6392\u67e5\u5bf9\u8c61\u8981\u5148\u5206\u6e05\u3002<\/li>\n<\/ul>\n<p>\u786e\u8ba4\u4e86\u544a\u8b66\u7684\u89e6\u53d1\u903b\u8f91\uff0c\u4e0b\u4e00\u6b65\u5c31\u662f\u52a8\u624b\u6392\u67e5\uff0c\u627e\u5230\u5230\u5e95\u662f\u54ea\u4e00\u5c42\u3001\u54ea\u5f20\u8bc1\u4e66\u51fa\u4e86\u95ee\u9898\u3002<\/p>\n<h2>\u4e09\u6b65\u5b9a\u4f4d\u8bc1\u4e66\u5230\u671f\u95ee\u9898<\/h2>\n<p>\u6392\u67e5\u4e0d\u9700\u8981\u590d\u6742\u5de5\u5177\uff0c\u4e00\u6761 openssl \u547d\u4ee4\u52a0\u4e0a\u5bf9\u7cfb\u7edf\u65f6\u95f4\u7684\u6838\u5bf9\uff0c\u57fa\u672c\u80fd\u8986\u76d6\u4e5d\u6210\u573a\u666f\u3002<\/p>\n<p>\u7b2c\u4e00\u6b65\uff0c\u67e5\u770b\u7ebf\u4e0a\u8bc1\u4e66\u7684\u771f\u5b9e\u5230\u671f\u65f6\u95f4\u3002\u5728\u4efb\u610f\u4e00\u53f0\u6709 openssl \u7684\u673a\u5668\u4e0a\u6267\u884c\uff1a<\/p>\n<pre><code class=\"language-bash\">echo | openssl s_client -servername yourdomain.com -connect yourdomain.com:443 2&gt;\/dev\/null | openssl x509 -noout -dates -subject -issuer\n<\/code><\/pre>\n<p>\u8f93\u51fa\u91cc\u7684 <code>notAfter<\/code> \u5c31\u662f\u8bc1\u4e66\u5230\u671f\u65f6\u95f4\u3002\u5982\u679c\u5b83\u663e\u793a\u7684\u65e5\u671f\u548c\u4f60\u9884\u671f\u4e0d\u7b26\uff0c\u8bf4\u660e\u7ebf\u4e0a\u6302\u7684\u6839\u672c\u4e0d\u662f\u4f60\u6700\u8fd1\u66f4\u65b0\u7684\u90a3\u5f20\u8bc1\u4e66\uff0c\u95ee\u9898\u591a\u534a\u51fa\u5728 Web \u670d\u52a1\u5668\u6ca1\u6709 reload\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b65\uff0c\u6838\u5bf9\u670d\u52a1\u5668\u7cfb\u7edf\u65f6\u95f4\u3002\u6267\u884c <code>date -u<\/code>\uff0c\u786e\u8ba4 UTC \u65f6\u95f4\u662f\u5426\u51c6\u786e\u3002\u65f6\u95f4\u504f\u5dee\u8d85\u8fc7\u8bc1\u4e66\u6709\u6548\u671f\u8fb9\u754c\u65f6\uff0cNTP\uff08\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u540c\u6b65\u5fc5\u987b\u5148\u4fee\u597d\uff0c\u5426\u5219\u7eed\u671f\u4e86\u4e5f\u4f1a\u7ee7\u7eed\u62a5\u9519\uff1a<\/p>\n<pre><code class=\"language-bash\">timedatectl status | grep -E &quot;synchronized|NTP&quot;\n<\/code><\/pre>\n<p>\u7b2c\u4e09\u6b65\uff0c\u533a\u5206\u544a\u8b66\u6765\u6e90\u662f\u6e90\u7ad9\u8fd8\u662f CDN\u3002\u7528 <code>curl -vI https:\/\/yourdomain.com 2&gt;&amp;1 | grep -E \"expire|issuer\"<\/code> \u67e5\u770b\u5b9e\u9645\u8fd4\u56de\u8bc1\u4e66\u7684\u7b7e\u53d1\u8005\uff1b\u5982\u679c issuer \u663e\u793a\u7684\u662f CDN \u5382\u5546\u800c\u4e0d\u662f\u4f60\u7684 CA\uff0c\u8bf4\u660e\u7528\u6237\u770b\u5230\u7684\u662f\u8fb9\u7f18\u8282\u70b9\u8bc1\u4e66\uff0c\u8981\u767b\u5f55 CDN \u63a7\u5236\u53f0\u5904\u7406\uff0c\u800c\u4e0d\u662f\u5728\u6e90\u7ad9\u4e0a\u7eed\u671f\u3002<\/p>\n<p>\u4e09\u6b65\u8d70\u5b8c\uff0c\u8fc7\u671f\u8bc1\u4e66\u7684\u4f4d\u7f6e\u57fa\u672c\u5c31\u9501\u5b9a\u4e86\u3002\u63a5\u4e0b\u6765\u5206\u4e24\u79cd\u60c5\u51b5\u5904\u7406\uff1a\u4ed8\u8d39\u8bc1\u4e66\u8d70\u91cd\u65b0\u7b7e\u53d1\uff0cLet&#8217;s Encrypt \u8fd9\u7c7b\u514d\u8d39\u8bc1\u4e66\u5219\u76f4\u63a5\u7528 certbot \u7eed\u671f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssl-troubleshooting.webp\" alt=\"SSL \u8bc1\u4e66\u5230\u671f\u95ee\u9898\u4e09\u6b65\u6392\u67e5\u6d41\u7a0b\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u5e94\u6025\u6062\u590d\uff1a\u5148\u8ba9\u7f51\u7ad9\u91cd\u65b0\u53ef\u4ee5\u8bbf\u95ee<\/h2>\n<p>\u786e\u8ba4\u662f\u6e90\u7ad9\u8bc1\u4e66\u8fc7\u671f\u540e\uff0c\u76ee\u6807\u662f\u5c3d\u5feb\u6d88\u9664\u544a\u8b66\u3002\u5982\u679c\u7528\u7684\u662f Let&#8217;s Encrypt \u8bc1\u4e66\uff0c\u7eed\u671f\u4e00\u6761\u547d\u4ee4\u5c31\u80fd\u5b8c\u6210\uff1a<\/p>\n<pre><code class=\"language-bash\">certbot renew --dry-run &amp;&amp; certbot renew\nsystemctl reload nginx\n<\/code><\/pre>\n<p><code>--dry-run<\/code> \u5148\u5728\u6d4b\u8bd5\u73af\u5883\u9a8c\u8bc1\u7eed\u671f\u6d41\u7a0b\uff0c\u907f\u514d\u771f\u5b9e\u8bf7\u6c42\u89e6\u53d1\u9650\u6d41\uff08Let&#8217;s Encrypt \u5bf9\u540c\u4e00\u57df\u540d\u7684\u5931\u8d25\u9a8c\u8bc1\u6709\u6bcf\u5c0f\u65f6 5 \u6b21\u7684\u9650\u5236\uff09\u3002\u7eed\u671f\u6210\u529f\u540e\u5fc5\u987b reload Web \u670d\u52a1\u5668\uff0c\u5426\u5219\u65e7\u8bc1\u4e66\u4ecd\u9a7b\u7559\u5185\u5b58\uff0c\u6d4f\u89c8\u5668\u544a\u8b66\u4e0d\u4f1a\u6d88\u5931\u2014\u2014\u8fd9\u4e5f\u662f\u5f88\u591a\u4eba&#8221;\u660e\u660e\u7eed\u671f\u4e86\u8fd8\u62a5\u9519&#8221;\u7684\u539f\u56e0\u3002<\/p>\n<p>\u5982\u679c\u662f\u4ed8\u8d39\u8bc1\u4e66\uff08\u5982\u4e00\u5e74\u671f OV \u8bc1\u4e66\uff09\uff0c\u5e94\u6025\u8def\u5f84\u662f\u5230 CA \u63a7\u5236\u53f0\u91cd\u65b0\u7b7e\u53d1\uff1a\u751f\u6210\u65b0\u7684 CSR\uff08\u8bc1\u4e66\u7b7e\u540d\u8bf7\u6c42\uff09\uff0c\u5b8c\u6210\u57df\u540d\u9a8c\u8bc1\u540e\u4e0b\u8f7d\u65b0\u8bc1\u4e66\uff0c\u66ff\u6362\u670d\u52a1\u5668\u4e0a\u7684\u8bc1\u4e66\u6587\u4ef6\u518d\u91cd\u542f\u670d\u52a1\u3002\u6574\u4e2a\u8fc7\u7a0b\u901a\u5e38\u5728 10 \u5206\u949f\u5230\u6570\u5c0f\u65f6\u4e4b\u95f4\uff0c\u53d6\u51b3\u4e8e\u9a8c\u8bc1\u65b9\u5f0f\u3002<\/p>\n<p>\u66ff\u6362\u5b8c\u6210\u540e\u7528\u7b2c\u4e00\u6b65\u7684 openssl \u547d\u4ee4\u590d\u67e5 <code>notAfter<\/code>\uff0c\u786e\u8ba4\u7ebf\u4e0a\u5df2\u7ecf\u6302\u4e0a\u65b0\u8bc1\u4e66\uff0c\u518d\u8ba9\u540c\u4e8b\u7528\u65e0\u75d5\u6d4f\u89c8\u5668\u8bbf\u95ee\u4e00\u6b21\uff0c\u786e\u8ba4\u544a\u8b66\u6d88\u5931\u3002\u5e94\u6025\u5904\u7406\u53ea\u89e3\u51b3\u4e86&#8221;\u8fd9\u6b21&#8221;\uff0c\u8981\u8ba9\u660e\u5e74\u3001\u540e\u5e74\u4e0d\u518d\u51fa\u73b0\u540c\u6837\u7684\u7ea2\u8272\u8b66\u544a\uff0c\u5c31\u9700\u8981\u628a\u7eed\u671f\u81ea\u52a8\u5316\u3002<\/p>\n<h2>\u914d\u7f6e\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\uff0c\u8ba9\u544a\u8b66\u4e0d\u518d\u51fa\u73b0<\/h2>\n<p>Let&#8217;s Encrypt \u8bc1\u4e66\u6709\u6548\u671f\u53ea\u6709 90 \u5929\uff0c\u9760\u4eba\u5de5\u8bb0\u5fc6\u7eed\u671f\u51e0\u4e4e\u5fc5\u7136\u5931\u8bef\u3002certbot \u5b89\u88c5\u540e\u901a\u5e38\u81ea\u5e26\u5b9a\u65f6\u5668\uff0c\u4f46\u5fc5\u987b\u9010\u9879\u9a8c\u8bc1\u5b83\u771f\u7684\u5728\u5de5\u4f5c\u3002<\/p>\n<p>\u5148\u68c0\u67e5 certbot \u81ea\u5e26\u7684 systemd \u5b9a\u65f6\u5668\u662f\u5426\u542f\u7528\uff1a<\/p>\n<pre><code class=\"language-bash\">systemctl list-timers | grep certbot\n<\/code><\/pre>\n<p>\u5982\u679c\u5217\u8868\u4e3a\u7a7a\uff0c\u8bf4\u660e\u81ea\u52a8\u7eed\u671f\u4ece\u672a\u914d\u7f6e\u3002\u53ef\u4ee5\u624b\u52a8\u52a0\u4e00\u6761 cron \u4efb\u52a1\uff0c\u6bcf\u5929\u51cc\u6668 3 \u70b9\u68c0\u67e5\u4e00\u6b21\uff0c\u8ddd\u79bb\u5230\u671f\u5c11\u4e8e 30 \u5929\u7684\u8bc1\u4e66\u624d\u4f1a\u771f\u6b63\u7eed\u671f\uff1a<\/p>\n<pre><code class=\"language-bash\">0 3 * * * certbot renew --quiet --deploy-hook &quot;systemctl reload nginx&quot;\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u7684 <code>--deploy-hook<\/code> \u662f\u5173\u952e\uff1a\u5b83\u4fdd\u8bc1\u6bcf\u6b21\u8bc1\u4e66\u6210\u529f\u7eed\u671f\u540e\u81ea\u52a8 reload Nginx\uff0c\u4ece\u6839\u4e0a\u6d88\u9664&#8221;\u7eed\u671f\u4e86\u4f46\u670d\u52a1\u5668\u6ca1\u52a0\u8f7d\u65b0\u8bc1\u4e66&#8221;\u7684\u95ee\u9898\u3002\u5bf9\u6bd4\u4e00\u4e0b\u4e24\u79cd\u914d\u7f6e\u7684\u5dee\u5f02\u2014\u2014\u53ea\u5199 <code>certbot renew<\/code> \u800c\u6ca1\u6709 deploy-hook \u7684\u7ad9\u70b9\uff0c\u8bc1\u4e66\u6587\u4ef6\u66f4\u65b0\u4e86\u4f46\u8fdb\u7a0b\u91cc\u8fd8\u662f\u65e7\u8bc1\u4e66\uff0c\u544a\u8b66\u7167\u6837\u51fa\u73b0\uff1b\u8865\u4e0a hook \u4e4b\u540e\u8fd9\u7c7b\u6545\u969c\u57fa\u672c\u5f52\u96f6\u3002<\/p>\n<p>\u6cdb\u57df\u540d\u8bc1\u4e66\uff08<code>*.example.com<\/code>\uff09\u9700\u8981 DNS\uff08\u57df\u540d\u89e3\u6790\u7cfb\u7edf\uff09\u9a8c\u8bc1\uff0c\u4e0d\u80fd\u7528 HTTP \u65b9\u5f0f\u81ea\u52a8\u7eed\u671f\uff0c\u8981\u914d\u7f6e DNS API \u63d2\u4ef6\uff08\u5982 <code>certbot-dns-cloudflare<\/code>\uff09\uff0c\u628a API \u4ee4\u724c\u5199\u5165\u914d\u7f6e\u6587\u4ef6\u540e\uff0ccron \u91cc\u7684\u547d\u4ee4\u6539\u4e3a <code>certbot renew --dns-cloudflare<\/code>\u3002\u591a\u53f0\u670d\u52a1\u5668\u5171\u7528\u540c\u4e00\u5f20\u8bc1\u4e66\u7684\u573a\u666f\uff0c\u5efa\u8bae\u5728\u4e00\u53f0\u673a\u5668\u7edf\u4e00\u7eed\u671f\uff0c\u518d\u7528 rsync \u5206\u53d1\u5230\u5176\u4ed6\u8282\u70b9\uff0c\u907f\u514d\u6bcf\u53f0\u673a\u5668\u5404\u81ea\u8bf7\u6c42\u89e6\u53d1 CA \u9650\u6d41\uff1b\u5982\u679c\u4f60\u7684\u8bc1\u4e66\u90e8\u7f72\u5728<a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">\u72ec\u7acb\u670d\u52a1\u5668<\/a>\u7684\u591a\u4e2a\u4eba\u5de5\u7ba1\u7406\u8282\u70b9\u4e0a\uff0c\u8fd9\u7c7b\u7edf\u4e00\u7eed\u671f\u52a0\u5206\u53d1\u7684\u65b9\u5f0f\u5c24\u5176\u503c\u5f97\u63d0\u524d\u89c4\u5212\u3002<\/p>\n<p>\u81ea\u52a8\u5316\u914d\u7f6e\u5b8c\u4e0d\u7b49\u4e8e\u4e07\u4e8b\u5927\u5409\uff0c\u8fd8\u9700\u8981\u4e00\u5c42\u76d1\u63a7\u515c\u5e95\uff0c\u786e\u4fdd\u8bc1\u4e66\u5230\u671f\u524d\u6709\u4eba\u6536\u5230\u63d0\u9192\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssl-renewal-flow.webp\" alt=\"SSL \u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5b9a\u65f6\u5faa\u73af\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u7eed\u671f\u5931\u8d25\u7684\u5e38\u89c1\u539f\u56e0\u4e0e\u76d1\u63a7\u515c\u5e95<\/h2>\n<p>\u81ea\u52a8\u7eed\u671f\u4e0d\u662f\u88c5\u5b8c\u5c31\u7a33\u5b9a\u8fd0\u884c\uff0c\u9a8c\u8bc1\u73af\u8282\u5931\u8d25\u5360\u7eed\u671f\u6545\u969c\u7684\u5927\u5934\u3002\u4e00\u4e2a\u771f\u5b9e\u6848\u4f8b\uff1a\u67d0\u7ad9\u70b9\u628a <code>\/.well-known\/acme-challenge\/<\/code> \u8def\u5f84\u5728 Nginx \u91cc\u914d\u7f6e\u4e86\u5f3a\u5236\u8df3\u8f6c HTTPS\uff0c\u7ed3\u679c HTTP \u9a8c\u8bc1\u59cb\u7ec8 404\uff0c\u8bc1\u4e66\u6084\u6084\u8fc7\u671f\u4e86 11 \u5929\u624d\u88ab\u53d1\u73b0\u3002\u6392\u67e5\u65b9\u6cd5\u662f\u624b\u52a8\u8dd1\u4e00\u6b21\u7eed\u671f\u5e76\u67e5\u770b\u5b8c\u6574\u65e5\u5fd7\uff1a<\/p>\n<pre><code class=\"language-bash\">certbot renew --dry-run -v\ntail -20 \/var\/log\/letsencrypt\/letsencrypt.log\n<\/code><\/pre>\n<p>\u65e5\u5fd7\u91cc\u51fa\u73b0 <code>Timeout during connect<\/code> \u591a\u534a\u662f\u9632\u706b\u5899\u62e6\u4e86 80 \u7aef\u53e3\uff0c<code>Invalid response<\/code> \u5219\u5e38\u89c1\u4e8e\u9a8c\u8bc1\u8def\u5f84\u88ab\u91cd\u5199\u3002\u4fee\u6b63\u9a8c\u8bc1\u8def\u5f84\u653e\u884c\u89c4\u5219\u540e\uff0c\u7eed\u671f\u5373\u53ef\u6062\u590d\u6b63\u5e38\u3002<\/p>\n<p>\u76d1\u63a7\u5c42\u9762\uff0c\u5efa\u8bae\u5728\u5230\u671f\u524d 30 \u5929\u548c 7 \u5929\u5404\u8bbe\u4e00\u5c42\u63d0\u9192\u3002\u4e00\u4e2a\u8f7b\u91cf\u505a\u6cd5\u662f\u7528\u811a\u672c\u68c0\u67e5\u5269\u4f59\u5929\u6570\uff0c\u5c11\u4e8e\u9608\u503c\u5c31\u53d1\u901a\u77e5\uff1a<\/p>\n<pre><code class=\"language-bash\">end=$(date -d &quot;$(echo | openssl s_client -servername yourdomain.com -connect yourdomain.com:443 2&gt;\/dev\/null | openssl x509 -noout -enddate | cut -d= -f2)&quot; +%s)\nleft=$(( (end - $(date +%s)) \/ 86400 ))\n[ &quot;$left&quot; -lt 30 ] &amp;&amp; echo &quot;\u8bc1\u4e66\u5269\u4f59 $left \u5929\uff0c\u8bf7\u68c0\u67e5\u81ea\u52a8\u7eed\u671f&quot; | mail -s &quot;SSL \u5230\u671f\u63d0\u9192&quot; admin@example.com\n<\/code><\/pre>\n<p>\u628a\u8fd9\u6761\u811a\u672c\u6302\u8fdb cron \u6bcf\u5929\u6267\u884c\uff0c\u5373\u4f7f\u81ea\u52a8\u7eed\u671f\u6084\u6084\u5931\u6548\uff0c\u4f60\u4e5f\u4f1a\u5728\u544a\u8b66\u51fa\u73b0\u524d\u4e00\u4e2a\u6708\u6536\u5230\u4fe1\u53f7\u3002\u8fd0\u7ef4\u5c42\u9762\u7684\u8fd9\u4e9b\u515c\u5e95\u52a8\u4f5c\uff0c\u548c\u6211\u4eec\u5904\u7406<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u6027\u80fd<\/a>\u95ee\u9898\u65f6\u7684\u601d\u8def\u4e00\u81f4\u2014\u2014\u76d1\u63a7\u5148\u884c\uff0c\u800c\u4e0d\u662f\u7b49\u7528\u6237\u62a5\u969c\uff0c\u76f8\u5173\u65b9\u6cd5\u53ef\u4ee5\u53c2\u8003\u4e4b\u524d\u5199\u8fc7\u7684<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u6027\u80fd\u4f18\u5316<\/a>\u4e0e<a href=\"https:\/\/cn.hostease.com\/blog\/guides\/ttfb-hosting-optimization\/\">\u7f51\u7ad9 TTFB \u4f18\u5316<\/a>\u4e24\u7bc7\u6587\u7ae0\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u4e0b\u4e00\u6b65\u884c\u52a8<\/h2>\n<p>\u56de\u987e\u6574\u5957\u5904\u7406\u8def\u5f84\uff1a\u6d4f\u89c8\u5668\u544a\u8b66\u7684\u6839\u6e90\u662f\u8bc1\u4e66\u6709\u6548\u671f\u6821\u9a8c\u5931\u8d25\uff1b\u7528 openssl \u4e00\u6761\u547d\u4ee4\u5b9a\u4f4d\u5230\u671f\u65f6\u95f4\u548c\u7b7e\u53d1\u8005\uff0c\u7528 timedatectl \u6392\u9664\u7cfb\u7edf\u65f6\u95f4\u5e72\u6270\uff1b\u5e94\u6025\u9636\u6bb5\u7528 certbot renew \u52a0 reload \u5feb\u901f\u6062\u590d\u8bbf\u95ee\uff1b\u957f\u671f\u65b9\u6848\u662f cron \u5b9a\u65f6\u4efb\u52a1\u52a0 <code>--deploy-hook<\/code> \u5b9e\u73b0\u5168\u81ea\u52a8\u7eed\u671f\uff0c\u518d\u7528\u5269\u4f59\u5929\u6570\u76d1\u63a7\u811a\u672c\u515c\u5e95\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u7ef4\u62a4\u591a\u4e2a\u7ad9\u70b9\uff0c\u5efa\u8bae\u4eca\u5929\u5c31\u628a\u6bcf\u53f0\u670d\u52a1\u5668\u7684 <code>systemctl list-timers | grep certbot<\/code> \u68c0\u67e5\u4e00\u904d\uff0c\u786e\u8ba4\u6240\u6709\u8bc1\u4e66\u90fd\u6709\u6d3b\u8dc3\u7684\u7eed\u671f\u4efb\u52a1\u2014\u2014\u8fd9\u662f\u6210\u672c\u6700\u4f4e\u3001\u6536\u76ca\u6700\u76f4\u63a5\u7684\u4e00\u6761\u8fd0\u7ef4\u6539\u8fdb\u3002\u82e5\u4f60\u7684\u7f51\u7ad9\u6258\u7ba1\u5728 Hostease \u7684<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a<\/a>\u6216 <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\u63a7\u5236\u53f0\u5185\u7f6e\u7684 SSL \u7ba1\u7406\u529f\u80fd\u53ef\u4ee5\u4e00\u952e\u7b7e\u53d1\u548c\u7eed\u671f\u8bc1\u4e66\uff0c\u7701\u53bb\u624b\u52a8\u914d\u7f6e cron \u7684\u6b65\u9aa4\uff1b\u9700\u8981\u66f4\u5f3a\u63a7\u5236\u6743\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u9009\u62e9<a href=\"https:\/\/cn.hostease.com\/vps\/\">Hostease VPS \u4e3b\u673a<\/a>\uff0c\u5728\u81ea\u5df1\u638c\u63e1\u7eed\u671f\u7b56\u7565\u7684\u540c\u65f6\u4fdd\u7559\u5b8c\u6574\u7684 shell \u6743\u9650\uff0c\u5982\u679c\u4f60\u9700\u8981\u4e86\u89e3\u66f4\u591a\u4e3b\u673a\u65b9\u6848\u5dee\u5f02\uff0c\u4e5f\u53ef\u4ee5\u5bf9\u6bd4<a href=\"https:\/\/cn.hostease.com\/web-hosting\/\">\u865a\u62df\u4e3b\u673a<\/a>\u4e0e VPS \u7684\u529f\u80fd\u8fb9\u754c\u518d\u505a\u51b3\u5b9a\u3002\u8bc1\u4e66\u95ee\u9898\u89e3\u51b3\u540e\uff0c\u4e0b\u4e00\u6b65\u53ef\u4ee5\u987a\u624b\u68c0\u67e5 HTTPS \u7684\u6df7\u5408\u5185\u5bb9\u544a\u8b66\u548c HSTS \u914d\u7f6e\uff0c\u628a\u6574\u4e2a\u52a0\u5bc6\u94fe\u8def\u4e00\u6b21\u6027\u505a\u624e\u5b9e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7f51\u7ad9\u7a81\u7136\u63d0\u793a\u8bc1\u4e66\u8fc7\u671f\uff1f\u672c\u6587\u6559\u4f60\u5982\u4f55\u6392\u67e5 SSL \u8bc1\u4e66\u5230\u671f\u7684\u5177\u4f53\u539f\u56e0\uff0c\u7528 openssl \u548c certbot \u5feb\u901f\u6062\u590d HTTPS \u8bbf\u95ee\uff0c\u5e76\u914d\u7f6e\u5b9a\u65f6\u4efb\u52a1\u5b9e\u73b0\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\uff0c\u907f\u514d\u544a\u8b66\u518d\u6b21\u51fa\u73b0\u3002<\/p>\n","protected":false},"author":2,"featured_media":33778,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4099],"tags":[4899,1708,162,5332,5048],"class_list":["post-33781","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-certbot","tag-https","tag-ssl","tag-5332","tag-5048"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/10\/ssl-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33781","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=33781"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33781\/revisions"}],"predecessor-version":[{"id":33782,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33781\/revisions\/33782"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33778"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}