{"id":33083,"date":"2026-09-08T10:00:00","date_gmt":"2026-09-08T02:00:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=33083"},"modified":"2026-09-13T20:26:42","modified_gmt":"2026-09-13T12:26:42","slug":"certbot-renewal-failure-troubleshooting","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/guides\/certbot-renewal-failure-troubleshooting\/","title":{"rendered":"HTTPS \u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u6392\u969c\uff1acertbot \u94a9\u5b50\u4e0e\u5230\u671f\u544a\u8b66\u8bbe\u7f6e"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/certbot-renewal-failure-troubleshooting-cover.webp\" alt=\"\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u6392\u969c\u5c01\u9762\u56fe\" loading=\"lazy\" \/><\/p>\n<p>\u5468\u4e00\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;\uff0c\u8ba2\u5355\u63d0\u9192\u90ae\u4ef6\u505c\u5728\u534a\u5c0f\u65f6\u524d\u2014\u2014\u8fd9\u79cd\u573a\u666f\u591a\u6570\u4e0d\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u88ab\u5165\u4fb5\uff0c\u800c\u662f SSL\uff08\u5b89\u5168\u4f20\u8f93\u534f\u8bae\uff09\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u4e86\u3002\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u51e0\u4e4e\u4e0d\u4f1a\u4e3b\u52a8\u62a5\u9519\uff0c\u5b83\u5b89\u9759\u5730\u8eba\u5728\u65e5\u5fd7\u91cc\uff0c\u76f4\u5230\u6700\u540e\u4e00\u523b\u624d\u8ba9\u6574\u7ad9\u5931\u53bb\u4fe1\u4efb\u6807\u8bc6\u3002\u8fd9\u7bc7\u6587\u7ae0\u6559\u4f60\u5982\u4f55\u6392\u67e5 certbot \u7eed\u671f\u5931\u8d25\u3001\u7528\u94a9\u5b50\u8ba9\u7eed\u671f\u771f\u6b63\u751f\u6548\uff0c\u5e76\u642d\u5efa\u4e00\u5957\u5230\u671f\u544a\u8b66\uff0c\u628a\u95ee\u9898\u62e6\u5728\u8bc1\u4e66\u8fc7\u671f\u4e4b\u524d\u3002<\/p>\n<h2>\u5148\u641e\u6e05\u695a\uff1a\u7eed\u671f\u5931\u8d25\u4e3a\u4ec0\u4e48\u603b\u662f\u6084\u65e0\u58f0\u606f<\/h2>\n<p>certbot \u5b89\u88c5\u8bc1\u4e66\u65f6\u4f1a\u81ea\u52a8\u5199\u5165\u4e24\u4e2a\u5b9a\u65f6\u4efb\u52a1\uff1asystemd \u7cfb\u7edf\u4e0a\u7684 <code>certbot.timer<\/code>\uff08\u6bcf\u5929\u968f\u673a\u4e24\u6b21\u89e6\u53d1 <code>certbot renew<\/code>\uff09\uff0c\u4ee5\u53ca\u4f20\u7edf\u7cfb\u7edf\u4e0a\u7684 <code>\/etc\/cron.d\/certbot<\/code>\u3002\u6bcf\u6b21 renew \u53ea\u4f1a\u7eed\u671f&#8221;\u8ddd\u4eca 30 \u5929\u5185\u5230\u671f&#8221;\u7684\u8bc1\u4e66\uff0cLet&#8217;s Encrypt \u8bc1\u4e66\u6709\u6548\u671f 90 \u5929\uff0c\u4e5f\u5c31\u662f\u5927\u7ea6\u7b2c 60 \u5929\u8d77\u8fdb\u5165\u7eed\u671f\u7a97\u53e3\u3002<\/p>\n<p>\u8fd9\u5957\u673a\u5236\u7684\u95ee\u9898\u5728\u4e8e\u5b83&#8221;\u9759\u9ed8\u5931\u8d25&#8221;\uff1a\u5b9a\u65f6\u4efb\u52a1\u5728\u540e\u53f0\u6267\u884c\uff0cHTTP \u9a8c\u8bc1\u5931\u8d25\u53ea\u4f1a\u5199\u8fdb <code>\/var\/log\/letsencrypt\/letsencrypt.log<\/code>\uff0c\u670d\u52a1\u5668\u4e0d\u4f1a\u5f39\u4efb\u4f55\u63d0\u793a\u3002\u66f4\u5371\u9669\u7684\u662f Let&#8217;s Encrypt \u4f1a\u5728\u8bc1\u4e66\u5230\u671f\u524d 20 \u5929\u300110 \u5929\u3001\u6700\u540e 1 \u5929\u5206\u522b\u53d1\u63d0\u9192\u90ae\u4ef6\u5230\u6ce8\u518c\u90ae\u7bb1\u2014\u2014\u5982\u679c\u5f53\u521d\u586b\u7684\u662f\u4e0d\u5e38\u770b\u7684\u90ae\u7bb1\uff0c\u6216\u8005\u90ae\u4ef6\u8fdb\u4e86\u5783\u573e\u7bb1\uff0c\u7ad9\u70b9\u5c31\u4f1a\u6beb\u65e0\u5f81\u5146\u5730\u6389\u56de&#8221;\u4e0d\u5b89\u5168&#8221;\u72b6\u6001\u3002\u6240\u4ee5\u6392\u969c\u7684\u7b2c\u4e00\u6b65\u4e0d\u662f\u6539\u914d\u7f6e\uff0c\u800c\u662f\u5148\u628a\u5931\u8d25\u8bc1\u636e\u627e\u51fa\u6765\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/certbot-renewal-troubleshooting-flow.webp\" alt=\"certbot \u7eed\u671f\u6392\u969c\u4e09\u6b65\u6d41\u7a0b\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u7b2c\u4e00\u6b65\uff1a\u4e09\u6761\u547d\u4ee4\u786e\u8ba4\u7eed\u671f\u662f\u5426\u771f\u7684\u5931\u8d25<\/h2>\n<p>\u5148\u770b\u8bc1\u4e66\u8fd8\u5269\u51e0\u5929\uff0c\u518d\u770b\u5931\u8d25\u539f\u56e0\u3002\u4ee5\u4e0b\u547d\u4ee4\u5728 Ubuntu 22.04 \u4e0e Debian 12 \u4e0a\u9a8c\u8bc1\u53ef\u7528\uff1a<\/p>\n<pre><code class=\"language-bash\">certbot certificates\n<\/code><\/pre>\n<p>\u8f93\u51fa\u91cc\u5173\u6ce8 <code>Expiry Date<\/code> \u5b57\u6bb5\uff0c\u65e5\u671f\u5c0f\u4e8e 30 \u5929\u8bf4\u660e\u7eed\u671f\u6ca1\u8dd1\u6210\u529f\uff1b\u518d\u770b <code>Certificate Path<\/code>\uff0c\u7b49\u4e0b\u6392\u969c\u8981\u7528\u3002<\/p>\n<pre><code class=\"language-bash\">certbot renew --dry-run\n<\/code><\/pre>\n<p>\u8fd9\u662f\u5b98\u65b9\u63a8\u8350\u7684\u6a21\u62df\u7eed\u671f\u547d\u4ee4\uff0c\u5b83\u4f1a\u5411 Let&#8217;s Encrypt \u7684 staging \u73af\u5883\u7533\u8bf7\u4e00\u5f20\u6d4b\u8bd5\u8bc1\u4e66\uff0c\u4e0d\u6d88\u8017\u6b63\u5f0f\u914d\u989d\uff08\u6bcf\u4e2a\u57df\u540d\u6bcf\u5468\u6700\u591a 5 \u5f20\u6b63\u5f0f\u8bc1\u4e66\uff0c\u76f4\u63a5\u53cd\u590d renew \u6b63\u5f0f\u8bc1\u4e66\u4f1a\u89e6\u53d1\u9650\u901f\uff09\u3002\u547d\u4ee4\u8f93\u51fa\u4f1a\u660e\u786e\u5230\u6bcf\u4e2a\u57df\u540d\u7684\u6a21\u62df\u7ed3\u679c\u662f <code>success<\/code> \u8fd8\u662f <code>fail<\/code>\u3002<\/p>\n<pre><code class=\"language-bash\">tail -n 100 \/var\/log\/letsencrypt\/letsencrypt.log\n<\/code><\/pre>\n<p>\u65e5\u5fd7\u91cc\u641c <code>urllib3<\/code> \u6216 <code>Connection refused<\/code> \u5f00\u5934\u7684\u6bb5\u843d\uff0c\u80fd\u76f4\u63a5\u770b\u5230\u9a8c\u8bc1\u8bf7\u6c42\u5361\u5728\u4e86\u54ea\u4e00\u6b65\u3002\u4e09\u6761\u547d\u4ee4\u8dd1\u5b8c\uff0c\u5931\u8d25\u539f\u56e0\u57fa\u672c\u9501\u5b9a\u5728\u4e0b\u9762\u56db\u7c7b\u91cc\u3002<\/p>\n<h2>\u56db\u7c7b\u9ad8\u9891\u5931\u8d25\u539f\u56e0\u4e0e\u5bf9\u5e94\u4fee\u6cd5<\/h2>\n<p><strong>\u7b2c\u4e00\u7c7b\uff1a80 \u7aef\u53e3\u9a8c\u8bc1\u88ab\u5360\u7528\u6216\u88ab\u9632\u706b\u5899\u62e6\u622a\u3002<\/strong> HTTP-01 \u9a8c\u8bc1\u8981\u6c42 Let&#8217;s Encrypt \u80fd\u8bbf\u95ee <code>http:\/\/\u4f60\u7684\u57df\u540d\/.well-known\/acme-challenge\/<\/code>\uff0c\u8fd9\u4e00\u6b65\u8d70\u7684\u662f 80 \u7aef\u53e3\u2014\u2014\u5373\u4f7f\u4f60\u7684\u7ad9\u70b9\u662f\u7eaf HTTPS\uff0c80 \u7aef\u53e3\u4e5f\u5fc5\u987b\u653e\u884c\u3002\u4e91\u670d\u52a1\u5668\uff08\u4e91\u7aef\u6258\u7ba1\u7684\u865a\u62df\u670d\u52a1\u5668\uff09\u5148\u68c0\u67e5\u5b89\u5168\u7ec4\u662f\u5426\u653e\u884c 80 \u5165\u7ad9\uff1b\u670d\u52a1\u5668\u672c\u673a\u7528 <code>ss -tlnp | grep :80<\/code> \u786e\u8ba4\u662f Nginx \u8fd8\u662f Apache \u5728\u76d1\u542c\u3002\u5982\u679c\u4e24\u8005\u90fd\u6ca1\u95ee\u9898\uff0c\u8fd8\u8981\u68c0\u67e5\u7f51\u7ad9\u914d\u7f6e\u91cc\u6709\u6ca1\u6709\u628a <code>\/.well-known\/acme-challenge\/<\/code> \u91cd\u5b9a\u5411\u5230 HTTPS \u65f6\u6539\u5199\u4e86\u8def\u5f84\u3002<\/p>\n<p><strong>\u7b2c\u4e8c\u7c7b\uff1aDNS\uff08\u57df\u540d\u89e3\u6790\u7cfb\u7edf\uff09\u89e3\u6790\u4e0d\u518d\u6307\u5411\u8fd9\u53f0\u670d\u52a1\u5668\u3002<\/strong> \u7ad9\u70b9\u8fc1\u79fb\u540e\u5fd8\u4e86\u6539\u56de\u89e3\u6790\u3001\u6216\u8005\u6362\u4e86 CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u4ee3\u7406\u6a21\u5f0f\uff0c\u9a8c\u8bc1\u8bf7\u6c42\u5c31\u4f1a\u6253\u5230\u522b\u7684\u673a\u5668\u4e0a\u3002\u7528 <code>dig +short \u4f60\u7684\u57df\u540d<\/code> \u6838\u5bf9\u8fd4\u56de\u7684 IP \u662f\u5426\u662f\u672c\u673a\u516c\u7f51 IP\u3002\u5982\u679c\u57df\u540d\u8d70\u4e86 CDN \u4ee3\u7406\uff0c\u8981\u4e48\u4e34\u65f6\u5207\u56de DNS only \u6a21\u5f0f\u5b8c\u6210\u9a8c\u8bc1\uff0c\u8981\u4e48\u6539\u7528 DNS-01 \u9a8c\u8bc1\u65b9\u5f0f\u3002<\/p>\n<p><strong>\u7b2c\u4e09\u7c7b\uff1a\u8bc1\u4e66\u76ee\u5f55\u4e0e web \u670d\u52a1\u914d\u7f6e\u6f02\u79fb\u3002<\/strong> \u624b\u52a8\u632a\u8fc7 <code>\/etc\/letsencrypt\/<\/code> \u76ee\u5f55\u3001\u6362\u8fc7 certbot \u7248\u672c\uff0c\u4f1a\u51fa\u73b0 <code>renew<\/code> \u627e\u4e0d\u5230 renewal \u914d\u7f6e\u7684\u60c5\u51b5\u3002\u68c0\u67e5 <code>\/etc\/letsencrypt\/<\/code> \u4e0b\u7684\u7eed\u671f\u914d\u7f6e\u76ee\u5f55\u4e2d\u662f\u5426\u6709\u5bf9\u5e94\u57df\u540d\u7684 <code>.conf<\/code> \u6587\u4ef6\uff0c\u7f3a\u5931\u7684\u8bdd\u7528 <code>certbot reconfigure<\/code> \u6216\u6309\u539f\u53c2\u6570\u91cd\u65b0\u7b7e\u53d1\u4e00\u6b21\u5373\u53ef\u6062\u590d\u3002<\/p>\n<p><strong>\u7b2c\u56db\u7c7b\uff1a\u7eed\u671f\u6210\u529f\u4e86\uff0c\u4f46 web \u670d\u52a1\u6ca1\u52a0\u8f7d\u65b0\u8bc1\u4e66\u3002<\/strong> \u8fd9\u662f\u88ab\u5ffd\u7565\u6700\u591a\u7684\u4e00\u7c7b\uff1a<code>certbot renew<\/code> \u53ea\u8d1f\u8d23\u628a\u65b0\u8bc1\u4e66\u5199\u5230\u78c1\u76d8\uff0cNginx \u4e0d\u4f1a\u81ea\u52a8\u8bfb\u53d6\u3002\u5224\u65ad\u65b9\u6cd5\u5f88\u7b80\u5355\u2014\u2014<code>certbot certificates<\/code> \u663e\u793a\u7684\u5230\u671f\u65e5\u662f\u65b0\u7684\uff0c\u6d4f\u89c8\u5668\u91cc\u770b\u5230\u7684\u8bc1\u4e66\u5374\u662f\u65e7\u7684\u3002\u8fd9\u7c7b\u95ee\u9898\u4e0d\u53eb\u7eed\u671f\u5931\u8d25\uff0c\u53eb&#8221;\u751f\u6548\u5931\u8d25&#8221;\uff0c\u9700\u8981\u9760 deploy \u94a9\u5b50\u89e3\u51b3\u3002<\/p>\n<h2>\u7528 deploy \u94a9\u5b50\u8ba9\u65b0\u8bc1\u4e66\u771f\u6b63\u751f\u6548<\/h2>\n<p>certbot \u7684\u94a9\u5b50\u5206\u51e0\u79cd\uff0c\u6700\u5173\u952e\u7684\u662f <code>--deploy-hook<\/code>\uff1a\u5b83\u53ea\u5728&#8221;\u8bc1\u4e66\u771f\u6b63\u7eed\u671f\u6210\u529f&#8221;\u540e\u6267\u884c\uff0c\u6b63\u597d\u7528\u6765\u91cd\u8f7d web \u670d\u52a1\u3002\u5bf9 Nginx \u6765\u8bf4\uff0c\u4e00\u6761\u547d\u4ee4\u5c31\u80fd\u6c38\u4e45\u5199\u5165\u94a9\u5b50\uff1a<\/p>\n<pre><code class=\"language-bash\">certbot reconfigure --deploy-hook &quot;nginx -s reload&quot;\n<\/code><\/pre>\n<p>\u4e4b\u540e\u6bcf\u6b21\u7eed\u671f\u6210\u529f\uff0cNginx \u90fd\u4f1a\u81ea\u52a8\u52a0\u8f7d\u65b0\u8bc1\u4e66\u3002\u5982\u679c\u670d\u52a1\u662f systemd \u7ba1\u7406\u7684\u5176\u4ed6\u7ec4\u4ef6\uff08\u4f8b\u5982\u81ea\u5efa\u7684 API \u7f51\u5173\uff09\uff0c\u628a\u547d\u4ee4\u6362\u6210 <code>systemctl reload \u4f60\u7684\u670d\u52a1\u540d<\/code> \u5373\u53ef\u3002\u6709\u4e24\u70b9\u5bb9\u6613\u8e29\u5751\uff1a\u4e00\u662f Debian\/Ubuntu \u6253\u5305\u7684 <code>python3-certbot-nginx<\/code> \u63d2\u4ef6\u4f1a\u81ea\u52a8\u5904\u7406\u91cd\u8f7d\uff0c\u4f46\u524d\u63d0\u662f Nginx \u914d\u7f6e\u91cc\u8bc1\u4e66\u8def\u5f84\u6307\u5411 <code>\/etc\/letsencrypt\/live\/\u57df\u540d\/<\/code>\uff0c\u81ea\u5b9a\u4e49\u8def\u5f84\u5c31\u4eab\u53d7\u4e0d\u5230\u8fd9\u4e2a\u4fbf\u5229\uff1b\u4e8c\u662f\u94a9\u5b50\u811a\u672c\u7b2c\u4e00\u6b21\u5efa\u8bae\u624b\u52a8\u8dd1\u4e00\u904d\uff0c\u7528 <code>chmod +x<\/code> \u786e\u8ba4\u53ef\u6267\u884c\u6743\u9650\uff0c\u5426\u5219\u94a9\u5b50\u5931\u8d25\u540c\u6837\u53ea\u5199\u65e5\u5fd7\u3001\u4e0d\u62a5\u8b66\u3002<\/p>\n<p>\u5bf9\u4e8e\u6709\u591a\u53f0\u670d\u52a1\u5668\u3001\u8bc1\u4e66\u5206\u6563\u7ba1\u7406\u7684\u56e2\u961f\uff0c\u53ef\u4ee5\u8003\u8651\u628a\u8bc1\u4e66\u7edf\u4e00\u6258\u7ba1\u5230\u8d1f\u8f7d\u5747\u8861\u5c42\uff0c\u907f\u514d\u6bcf\u53f0\u673a\u5668\u5404\u81ea\u7eed\u671f\u3002\u6211\u4eec\u4e4b\u524d\u5728\u8bb2<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u8fd0\u7ef4\u57fa\u7840\u914d\u7f6e<\/a>\u65f6\u63d0\u5230\u8fc7\u7c7b\u4f3c\u7684\u601d\u8def\uff1a\u628a\u8bc1\u4e66\u3001\u5b9a\u65f6\u4efb\u52a1\u8fd9\u4e9b&#8221;\u5e73\u65f6\u770b\u4e0d\u89c1&#8221;\u7684\u7ec4\u4ef6\u96c6\u4e2d\u5316\uff0c\u51fa\u95ee\u9898\u7684\u6982\u7387\u4f1a\u4f4e\u5f88\u591a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/certbot-expiry-alert-levels.webp\" alt=\"\u8bc1\u4e66\u5230\u671f\u5929\u6570\u5206\u7ea7\u544a\u8b66\u793a\u610f\u56fe\" loading=\"lazy\" \/><\/p>\n<h2>\u5230\u671f\u544a\u8b66\uff1a\u522b\u628a\u5b9d\u62bc\u5728\u90ae\u4ef6\u4e0a<\/h2>\n<p>Let&#8217;s Encrypt \u7684\u5230\u671f\u90ae\u4ef6\u662f\u6700\u540e\u9632\u7ebf\uff0c\u4e0d\u662f\u7b2c\u4e00\u9632\u7ebf\u3002\u771f\u6b63\u53ef\u9760\u7684\u65b9\u6848\u662f\u81ea\u5df1\u52a8\u624b\u76d1\u63a7\u5269\u4f59\u5929\u6570\uff0c\u6309\u8ddd\u79bb\u5230\u671f\u7684\u8fdc\u8fd1\u5206\u4e24\u7ea7\u5904\u7406\uff1a<\/p>\n<ul>\n<li>\u5269\u4f59 21 \u5929\u4ee5\u4e0a\uff1a\u6b63\u5e38\u533a\u95f4\uff0c\u6bcf\u5468\u5de1\u68c0\u4e00\u6b21\u5373\u53ef\uff0c\u53ef\u4ee5\u7eb3\u5165\u73b0\u6709\u7684<a href=\"https:\/\/cn.hostease.com\/blog\/server\/\">\u670d\u52a1\u5668\u76d1\u63a7\u65b9\u6848<\/a>\u7edf\u4e00\u770b\u677f\u3002<\/li>\n<li>\u5269\u4f59 8 \u5230 21 \u5929\uff1a\u5173\u6ce8\u533a\u95f4\u3002\u7406\u8bba\u4e0a certbot \u65e9\u5df2\u5b8c\u6210\u7eed\u671f\uff0c\u5982\u679c\u5929\u6570\u8fd8\u5728\u5f80\u4e0b\u8d70\uff0c\u8bf4\u660e\u7eed\u671f\u94fe\u8def\u6709\u6545\u969c\uff0c\u7acb\u5373\u6309\u4e0a\u6587\u56db\u7c7b\u539f\u56e0\u6392\u67e5\u3002<\/li>\n<li>\u5269\u4f59 7 \u5929\u4ee5\u5185\uff1a\u544a\u8b66\u533a\u95f4\u3002\u76f4\u63a5\u628a\u544a\u8b66\u63a8\u9001\u5230\u80fd\u5435\u9192\u4eba\u7684\u6e20\u9053\uff08Telegram\u3001\u4f01\u4e1a\u5fae\u4fe1\u673a\u5668\u4eba\u3001\u77ed\u4fe1\uff09\uff0c\u5e76\u51c6\u5907\u624b\u52a8\u7eed\u671f\u9884\u6848 <code>certbot renew --force-renewal<\/code>\u3002<\/li>\n<\/ul>\n<p>\u843d\u5730\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u662f uptime \u76d1\u63a7\u7c7b\u5de5\u5177\u7684 SSL \u5230\u671f\u68c0\u67e5\uff08Uptime Kuma\u3001\u5404\u7c7b\u514d\u8d39\u62e8\u6d4b\u670d\u52a1\u90fd\u652f\u6301\uff09\uff0c\u628a\u9608\u503c\u8bbe\u4e3a 14 \u5929\uff0c\u4f4e\u4e8e\u9608\u503c\u5373\u89e6\u53d1\u901a\u77e5\uff0c\u5168\u7a0b\u4e0d\u7528\u5199\u4ee3\u7801\u3002\u5982\u679c\u504f\u597d\u547d\u4ee4\u884c\uff0c\u4e00\u884c\u811a\u672c\u653e\u8fdb cron \u4e5f\u80fd\u5b9e\u73b0\u540c\u6837\u6548\u679c\uff1a<\/p>\n<pre><code class=\"language-bash\">echo | openssl s_client -connect \u4f60\u7684\u57df\u540d:443 -servername \u4f60\u7684\u57df\u540d 2&gt;\/dev\/null | openssl x509 -noout -enddate\n<\/code><\/pre>\n<p>\u8f93\u51fa\u5f62\u5982 <code>notAfter=Dec 11 23:59:59 2026 GMT<\/code>\uff0c\u628a\u5b83\u548c\u5f53\u524d\u65e5\u671f\u505a\u5dee\u503c\uff0c\u518d\u6309\u4e0a\u9762\u7684\u5206\u7ea7\u51b3\u5b9a\u662f\u8bb0\u5f55\u8fd8\u662f\u62a5\u8b66\u3002<\/p>\n<h2>\u603b\u7ed3\u4e0e\u884c\u52a8\u5efa\u8bae<\/h2>\n<p>\u56de\u5230\u6700\u521d\u7684\u95ee\u9898\uff1a\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u4e4b\u6240\u4ee5\u81f4\u547d\uff0c\u4e0d\u662f\u56e0\u4e3a\u5b83\u96be\u4fee\uff0c\u800c\u662f\u56e0\u4e3a\u5b83\u5931\u8d25\u5f97\u6beb\u65e0\u58f0\u97f3\u3002\u5efa\u8bae\u4f60\u73b0\u5728\u5c31\u505a\u56db\u4ef6\u4e8b\uff0c\u603b\u8017\u65f6\u4e0d\u8d85\u8fc7 15 \u5206\u949f\uff1a<\/p>\n<ol>\n<li>\u8dd1\u4e00\u6b21 <code>certbot renew --dry-run<\/code>\uff0c\u786e\u8ba4\u5f53\u524d\u6240\u6709\u8bc1\u4e66\u7684\u6a21\u62df\u7eed\u671f\u7ed3\u679c\u4e3a success\u3002<\/li>\n<li>\u68c0\u67e5 deploy \u94a9\u5b50\u662f\u5426\u5b58\u5728\uff0cNginx \u73af\u5883\u6267\u884c <code>certbot reconfigure --deploy-hook \"nginx -s reload\"<\/code>\u3002<\/li>\n<li>\u7528 openssl \u547d\u4ee4\u6216\u76d1\u63a7\u5de5\u5177\u628a\u8bc1\u4e66\u5269\u4f59\u5929\u6570\u7eb3\u5165\u544a\u8b66\uff0c\u9608\u503c 14 \u5929\u8d77\u6b65\u3002<\/li>\n<li>\u767b\u5f55 Let&#8217;s Encrypt \u540e\u53f0\u6216\u67e5\u770b\u6ce8\u518c\u90ae\u7bb1\uff0c\u786e\u8ba4\u5230\u671f\u63d0\u9192\u90ae\u4ef6\u80fd\u6b63\u5e38\u6536\u5230\u3002<\/li>\n<\/ol>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u89c4\u5212\u6574\u7ad9 HTTPS \u6216\u8003\u8651\u628a\u8bc1\u4e66\u7ba1\u7406\u8fc1\u79fb\u5230\u66f4\u7701\u5fc3\u7684\u6258\u7ba1\u73af\u5883\uff0c\u4e5f\u53ef\u4ee5\u8003\u8651 <a href=\"https:\/\/cn.hostease.com\/dedicated-server\/\">Hostease \u7684\u670d\u52a1\u5668\u4e0e\u4e3b\u673a\u65b9\u6848<\/a>\uff0c\u8bc1\u4e66\u7531\u5e73\u53f0\u7edf\u4e00\u7ef4\u62a4\uff0c\u7701\u53bb\u6bcf\u53f0\u673a\u5668\u5355\u72ec\u914d\u7f6e\u94a9\u5b50\u548c\u544a\u8b66\u7684\u6210\u672c\u3002\u66f4\u591a\u5efa\u7ad9\u4e0e\u8fd0\u7ef4\u5b9e\u8df5\uff0c\u6b22\u8fce\u6301\u7eed\u5173\u6ce8\u6211\u4eec\u7684<a href=\"https:\/\/cn.hostease.com\/blog\/wordpress\/\">\u4e2d\u6587\u535a\u5ba2<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u5931\u8d25\u5f80\u5f80\u6ca1\u6709\u4efb\u4f55\u62a5\u9519\uff0c\u76f4\u5230\u6d4f\u89c8\u5668\u5f39\u51fa\u5b89\u5168\u8b66\u544a\u624d\u88ab\u53d1\u73b0\u3002\u672c\u6587\u6559\u4f60\u7528 certbot renew &#8211;dry-run \u548c\u7eed\u671f\u65e5\u5fd7\u5b9a\u4f4d\u5931\u8d25\u539f\u56e0\uff0c\u68b3\u7406\u57df\u540d\u9a8c\u8bc1\u5931\u8d25\u3001\u7aef\u53e3\u5360\u7528\u3001deploy \u94a9\u5b50\u7f3a\u5931\u7b49\u5e38\u89c1\u95ee\u9898\uff0c\u5e76\u7ed9\u51fa\u4e00\u5957\u8bc1\u4e66\u5230\u671f\u5206\u7ea7\u544a\u8b66\u65b9\u6848\uff0c\u5e2e\u52a9\u7ad9\u957f\u628a\u98ce\u9669\u62e6\u5728\u5230\u671f\u4e4b\u524d\u3002<\/p>\n","protected":false},"author":2,"featured_media":33080,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3822],"tags":[4899,1708,4259,5049,5048],"class_list":["post-33083","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guides","tag-certbot","tag-https","tag-letsencrypt","tag-5049","tag-5048"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/09\/certbot-renewal-failure-troubleshooting-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33083","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=33083"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33083\/revisions"}],"predecessor-version":[{"id":33084,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/33083\/revisions\/33084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/33080"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=33083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=33083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=33083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}