{"id":208650,"date":"2025-09-29T20:09:42","date_gmt":"2025-09-29T12:09:42","guid":{"rendered":"https:\/\/www.server.hk\/blog\/208650\/"},"modified":"2025-09-29T20:09:43","modified_gmt":"2025-09-29T12:09:43","slug":"vps-84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208650\/","title":{"rendered":"\u96f6\u505c\u673a\uff01\u9999\u6e2fVPS\u7f51\u7ad9\u6570\u636e\u65e0\u7f1d\u8fc1\u79fb\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"<p>\u5bf9\u4e8e\u8ffd\u6c42\u9ad8\u53ef\u7528\u548c\u4f4e\u5ef6\u8fdf\u7684\u7ad9\u957f\u4e0e\u4f01\u4e1a\u7528\u6237\uff0c\u628a\u7f51\u7ad9\u6216\u670d\u52a1\u4ece\u5176\u5b83\u673a\u623f\u8fc1\u79fb\u5230\u9999\u6e2fVPS\uff0c\u5e38\u5e38\u9762\u4e34\u201c\u5982\u4f55\u5b9e\u73b0\u96f6\u505c\u673a\u201d\u7684\u6311\u6218\u3002\u672c\u6587\u7ed3\u5408\u5b9e\u8df5\u7ecf\u9a8c\uff0c\u8be6\u7ec6\u9610\u8ff0\u5728\u9999\u6e2fVPS\u73af\u5883\u4e0b\u5b9e\u73b0\u7f51\u7ad9\u6570\u636e\u65e0\u7f1d\u8fc1\u79fb\u7684\u539f\u7406\u4e0e\u64cd\u4f5c\u6d41\u7a0b\uff0c\u6db5\u76d6\u6587\u4ef6\u540c\u6b65\u3001\u6570\u636e\u5e93\u590d\u5236\u3001\u8d1f\u8f7d\u5207\u6362\u3001SSL\/\u8bc1\u4e66\u8fc1\u79fb\u53ca\u56de\u6eda\u7b56\u7565\u7b49\u5173\u952e\u73af\u8282\uff0c\u9002\u7528\u4e8e\u4f7f\u7528 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\/ LVM \u5feb\u7167\uff09<\/li>\n<li><strong>\u6570\u636e\u5e93\u590d\u5236\uff1a<\/strong>MySQL\/MariaDB \u4e3b\u4ece\/\u7ec4\u590d\u5236\uff08GTID\uff09\u3001\u6216\u4f7f\u7528 Galera\/Percona XtraDB Cluster \u5b9e\u73b0\u591a\u4e3b\u540c\u6b65<\/li>\n<li><strong>\u8bf7\u6c42\u8def\u7531\uff1a<\/strong>DNS \u5207\u6362+\u964d\u4f4e TTL\u3001\u6216\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5668\uff08HAProxy\/NGINX\uff09\u8fdb\u884c\u84dd\u7eff\/\u7070\u5ea6\u6d41\u91cf\u8f6c\u79fb<\/li>\n<li><strong>\u4f1a\u8bdd\u4e0e\u7f13\u5b58\uff1a<\/strong>\u4f7f\u7528\u96c6\u4e2d\u5f0f\u4f1a\u8bdd\u5b58\u50a8\uff08Redis\/Memcached\uff09\u6216\u7c98\u6027\u4f1a\u8bdd\u7b56\u7565\u4fdd\u8bc1\u4f1a\u8bdd\u65e0\u7f1d<\/li>\n<li><strong>\u8bc1\u4e66\u4e0e\u5b89\u5168\uff1a<\/strong>SSL \u79fb\u690d\u3001\u79c1\u94a5\u4fdd\u5bc6\u3001SSH key \u4e0e\u9632\u706b\u5899\u7b56\u7565<\/li>\n<\/ul>\n<h3>\u5f02\u6b65\u4e0e\u540c\u6b65\u590d\u5236\u9009\u62e9<\/h3>\n<p>\u5728\u8de8\u673a\u623f\u8fc1\u79fb\uff08\u4f8b\u5982\u4ece\u7f8e\u56fdVPS \u5230 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\u73af\u5883\u51c6\u5907\u4e0e\u914d\u7f6e\u4e00\u81f4\u6027<\/h3>\n<ul>\n<li>\u5728\u9999\u6e2fVPS\u4e0a\u642d\u5efa\u4e0e\u65e7\u73af\u5883\u4e00\u81f4\u7684\u8f6f\u4ef6\u6808\uff1aPHP\/NGINX\/Apache\u3001\u6570\u636e\u5e93\u7248\u672c\u3001\u6269\u5c55\u7b49\u3002\u4f7f\u7528\u914d\u7f6e\u7ba1\u7406\uff08Ansible\/Chef\/Puppet\uff09\u53ef\u907f\u514d\u4eba\u4e3a\u5dee\u9519\u3002<\/li>\n<li>\u540c\u6b65\u7528\u6237\u6743\u9650\u3001SSH key \u4e0e\u5b89\u5168\u7ec4\u89c4\u5219\uff0c\u786e\u4fdd\u4e24\u7aef\u80fd\u76f8\u4e92\u8bbf\u95ee\u4ee5\u4fbf\u590d\u5236\u4e0e\u6d4b\u8bd5\u3002<\/li>\n<\/ul>\n<h3>2. \u9759\u6001\u6587\u4ef6\u4e0e\u5a92\u4f53\u6587\u4ef6\u540c\u6b65<\/h3>\n<ul>\n<li>\u521d\u6b21\u6570\u636e\u540c\u6b65\u53ef\u4f7f\u7528 rsync -az &#8211;delete\uff0c\u901a\u8fc7 SSH \u4ece\u65e7\u673a\u623f\u5230\u9999\u6e2f\u670d\u52a1\u5668\u505a\u5168\u91cf\u62f7\u8d1d\u3002<\/li>\n<li>\u4e3a\u4e86\u5b9e\u73b0\u63a5\u8fd1\u5b9e\u65f6\u7684\u6587\u4ef6\u540c\u6b65\uff0c\u5efa\u8bae\u4f7f\u7528 lsyncd\uff08\u57fa\u4e8e inotify\uff09\u6216\u57fa\u4e8e\u5bf9\u8c61\u5b58\u50a8\u7684\u65b9\u6848\uff08\u4f8b\u5982\u628a\u5a92\u4f53\u8fc1\u79fb\u5230 S3\/\u517c\u5bb9\u5bf9\u8c61\u5b58\u50a8\u5e76\u5728\u4e24\u7aef\u6302\u8f7d\u6216\u4f7f\u7528 CDN\uff09\u4ee5\u51cf\u5c11\u7f51\u7edc I\/O \u5cf0\u503c\u3002<\/li>\n<li>\u6ce8\u610f\u6587\u4ef6\u6743\u9650\u4e0e SELinux\/ACL \u8bbe\u7f6e\uff0c\u786e\u4fdd web \u8fdb\u7a0b\u53ef\u4ee5\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<h3>3. \u6570\u636e\u5e93\u8fc1\u79fb\u4e0e\u4e00\u81f4\u6027\u4fdd\u8bc1<\/h3>\n<ul>\n<li>\u5982\u679c\u4f7f\u7528 MySQL\/MariaDB\uff0c\u53ef\u914d\u7f6e\u65e7\u5e93\u4e3a\u4e3b\uff08master\uff09\uff0c\u9999\u6e2f\u5e93\u4e3a\u4ece\uff08slave\uff09\uff0c\u542f\u52a8\u57fa\u4e8e binlog \u7684\u5f02\u6b65\u590d\u5236\u3002\u4f7f\u7528 GTID \u53ef\u4ee5\u7b80\u5316\u4e3b\u4ece\u5207\u6362\u3002<\/li>\n<li>\u6267\u884c\u521d\u6b21\u5907\u4efd\u53ef\u7528 mysqldump \u6216 XtraBackup\uff08\u7269\u7406\u70ed\u5907\uff0c\u65e0\u9501\uff09\u3002\u4f8b\u5982\u4f7f\u7528 Percona XtraBackup \u505a\u57fa\u5907\uff0c\u518d\u542f\u52a8\u589e\u91cf\/\u5b9e\u65f6 binlog \u540c\u6b65\u3002<\/li>\n<li>\u8fc1\u79fb\u8fc7\u7a0b\u4e2d\u5c3d\u91cf\u907f\u514d\u5927\u4e8b\u52a1\u6216 DDL \u963b\u585e\u3002\u82e5\u5fc5\u987b\u6539\u8868\u7ed3\u6784\uff0c\u4f7f\u7528 pt-online-schema-change \u6216 gh-ost \u5b9e\u73b0\u5728\u7ebf DDL\u3002<\/li>\n<li>\u5207\u6362\u65f6\u5e8f\uff1a\u5148\u628a\u9999\u6e2f\u5e93\u8ffd\u4e0a\u4e3b\u5e93\uff08SHOW SLAVE STATUS\uff09\u3002\u8fbe\u5230 catch-up \u540e\uff0c\u77ed\u6682\u505c\u5199\u65e7\u4e3b\uff0c\u786e\u4fdd binlog \u8ffd\u4e0a\uff0c\u6267\u884c\u5207\u6362\uff08\u628a\u9999\u6e2f\u5e93\u63d0\u5347\u4e3a\u4e3b\uff0c\u8c03\u6574\u5e94\u7528\u6307\u5411\uff09\u3002<\/li>\n<\/ul>\n<h3>4. \u4f1a\u8bdd\u4fdd\u6301\u4e0e\u7f13\u5b58\u7b56\u7565<\/h3>\n<ul>\n<li>\u82e5\u5e94\u7528\u4f9d\u8d56\u672c\u5730\u4f1a\u8bdd\uff08\u5982 PHP-FPM file sessions\uff09\uff0c\u5e94\u6539\u9020\u4e3a\u96c6\u4e2d\u5f0f\u4f1a\u8bdd\u5b58\u50a8\uff08Redis\uff09\uff0c\u5e76\u90e8\u7f72 Redis \u7684\u4e3b\u4ece\u6216 Sentinel\uff0c\u4fdd\u8bc1\u4f1a\u8bdd\u5728\u5207\u6362\u65f6\u4e0d\u4e22\u5931\u3002<\/li>\n<li>\u5bf9\u4e8e CDN \u6216\u9875\u9762\u7f13\u5b58\uff0c\u63d0\u524d\u6267\u884c cache warming\uff08\u9884\u70ed\uff09\u4ee5\u907f\u514d\u5207\u6362\u77ac\u95f4\u5927\u91cf\u540e\u7aef\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<h3>5. \u6d41\u91cf\u5207\u6362\u65b9\u5f0f\uff1aDNS vs \u8d1f\u8f7d\u5747\u8861\u5668<\/h3>\n<ul>\n<li>DNS \u5207\u6362\u7b80\u5355\u4f46\u53d7\u9650\u4e8e TTL\u3002\u4e3a\u7f29\u77ed\u751f\u6548\u65f6\u95f4\uff0c\u5e94\u63d0\u524d\u628a\u8bb0\u5f55 TTL \u964d\u4f4e\u5230 60 \u79d2\u5e76\u5728\u5207\u6362\u7a97\u53e3\u5185\u6267\u884c\u3002<\/li>\n<li>\u66f4\u53ef\u9760\u7684\u505a\u6cd5\u662f\u4f7f\u7528\u53cd\u5411\u4ee3\u7406\/\u8d1f\u8f7d\u5747\u8861\uff08HAProxy\u3001NGINX or LVS\uff09\u90e8\u7f72\u5728\u524d\u7aef\uff0c\u505a\u84dd\u7eff\u53d1\u5e03\u6216\u7070\u5ea6\u6d41\u91cf\u8fc1\u79fb\uff0c\u652f\u6301\u9010\u6b65\u8fc1\u79fb\u5e76\u5728\u51fa\u73b0\u95ee\u9898\u65f6\u7acb\u5373\u56de\u6eda\u3002<\/li>\n<li>\u5728\u591a\u673a\u623f\u573a\u666f\uff08\u9999\u6e2f\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\/\u7f8e\u56fdVPS \u5e76\u5b58\uff09\u53ef\u91c7\u7528 Anycast \u6216\u5168\u5c40\u8d1f\u8f7d\u5747\u8861\uff08GSLB\uff09\u5b9e\u73b0\u57fa\u4e8e\u5730\u7406\u6216\u6027\u80fd\u7684\u8def\u7531\u3002<\/li>\n<\/ul>\n<h3>6. SSL\/\u8bc1\u4e66\u4e0e\u5b89\u5168\u8fc1\u79fb<\/h3>\n<ul>\n<li>\u628a\u8bc1\u4e66\u4e0e\u79c1\u94a5\u5b89\u5168\u5730\u590d\u5236\u5230\u9999\u6e2fVPS\uff0c\u4e25\u683c\u63a7\u5236\u6743\u9650\uff08600\uff09\uff0c\u5e76\u5728\u8fc1\u79fb\u524d\u6d4b\u8bd5 TLS \u914d\u7f6e\uff08\u4f7f\u7528 openssl s_client \u6216 SSL Labs\uff09\u3002<\/li>\n<li>\u6ce8\u610f HSTS \u6216 OCSP Stapling \u8bbe\u7f6e\uff0c\u907f\u514d\u56e0\u8bc1\u4e66\u95ee\u9898\u9020\u6210\u8bbf\u95ee\u5931\u8d25\u3002<\/li>\n<\/ul>\n<h3>7. \u6d4b\u8bd5\u4e0e\u56de\u6eda<\/h3>\n<ul>\n<li>\u4f7f\u7528 hosts \u6587\u4ef6\u6216\u5185\u7f51 DNS \u505a\u7070\u5ea6\u6d4b\u8bd5\uff0c\u5148\u5c06\u4e00\u90e8\u5206\u6d41\u91cf\u5bfc\u5230\u9999\u6e2f\u73af\u5883\uff0c\u9a8c\u8bc1\u529f\u80fd\u4e0e\u6027\u80fd\u3002<\/li>\n<li>\u5236\u5b9a\u660e\u786e\u7684\u56de\u6eda\u65b9\u6848\uff1a\u8bb0\u5f55\u5207\u6362\u524d\u7684 binlog \u4f4d\u70b9\u3001DNS 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