{"id":25270,"date":"2025-09-24T21:29:00","date_gmt":"2025-09-24T13:29:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=25270"},"modified":"2025-08-25T18:38:31","modified_gmt":"2025-08-25T10:38:31","slug":"security-for-anonymous-overseas-servers-firewall-ssl-ddos-backup","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/dedicated-server\/security-for-anonymous-overseas-servers-firewall-ssl-ddos-backup\/","title":{"rendered":"\u514d\u5b9e\u540d\u6d77\u5916\u670d\u52a1\u5668\u7684\u5b89\u5168\u9632\u62a4\u63aa\u65bd\u5168\u6307\u5357\uff1a\u9632\u706b\u5899\u3001SSL\u3001DDoS\u4e0e\u5907\u4efd\u7684\u5b9e\u64cd\u7ecf\u9a8c"},"content":{"rendered":"\n<p>\u5f88\u591a\u4eba\u9009\u514d\u5b9e\u540d<a href=\"https:\/\/cn.hostease.com\/dedicated-servers.html\">\u6d77\u5916\u670d\u52a1\u5668<\/a>\uff0c\u662f\u4e3a\u4e86\u5feb\u901f\u4e0a\u7ebf\u548c\u7075\u6d3b\u7ba1\u7406\u3002\u4f46\u201c\u514d\u5b9e\u540d\u201d\u53ea\u662f\u6ce8\u518c\u73af\u8282\u7684\u4e0d\u540c\uff0c\u5b83\u5e76\u4e0d\u4f1a\u5929\u7136\u524a\u5f31\u670d\u52a1\u5668\u7684\u5b89\u5168\u6027\u3002\u771f\u6b63\u5173\u952e\u7684\uff0c\u662f\u4f60\u662f\u5426\u5efa\u7acb\u4e86\u53ef\u9760\u7684\u5b89\u5168\u57fa\u7ebf\uff1a<strong>\u4e3b\u673a\u52a0\u56fa\u3001\u52a0\u5bc6\u4f20\u8f93\u3001DDoS\u8054\u52a8\u9632\u62a4\u3001\u6570\u636e\u5907\u4efd<\/strong>\u3002<\/p>\n\n\n\n<p>\u6211\u81ea\u5df1\u5728\u4e3a\u72ec\u7acb\u7ad9\u90e8\u7f72\u65f6\u53d1\u73b0\uff0c\u4e00\u65e6\u4f60\u628a\u8fd9\u51e0\u4e2a\u63aa\u65bd\u843d\u5b9e\u5230\u4f4d\uff0c\u5c31\u7b97\u9762\u5bf9\u9891\u7e41\u7684\u626b\u63cf\u3001\u7206\u7834\u3001\u751a\u81f3\u4e2d\u7b49\u89c4\u6a21\u7684DDoS\u653b\u51fb\uff0c\u670d\u52a1\u5668\u4f9d\u65e7\u80fd\u7a33\u4f4f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f60\u6700\u5bb9\u6613\u9047\u5230\u7684\u98ce\u9669<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u66b4\u529b\u7834\u89e3<\/strong>\uff1aSSH\u6216\u540e\u53f0\u767b\u5f55\u88ab\u4e0d\u65ad\u5c1d\u8bd5\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u6539\u7528\u5bc6\u94a5\u767b\u5f55\u3001\u7981\u7528\u5bc6\u7801\u767b\u5f55\uff0c\u5e76\u914d\u5408Fail2Ban\u81ea\u52a8\u5c01\u7981\u3002<\/li>\n\n\n\n<li><strong>\u4f20\u8f93\u7a83\u542c<\/strong>\uff1aHTTP\u660e\u6587\u6216\u8fc7\u671f\u8bc1\u4e66\u88ab\u5229\u7528\u3002\u542f\u7528SSL\/TLS\uff0c\u5e76\u786e\u4fdd\u8bc1\u4e66\u81ea\u52a8\u7eed\u671f\u3002<\/li>\n\n\n\n<li><strong>DDoS\u653b\u51fb<\/strong>\uff1a\u7f51\u7edc\u5c42\u6d2a\u6cdb\u6216\u5e94\u7528\u5c42\u8bf7\u6c42\u8f70\u70b8\u3002\u5fc5\u987b\u6709\u201c\u7f51\u7edc\u5c42\u6e05\u6d17+\u5e94\u7528\u5c42WAF\u201d\u53cc\u4fdd\u9669\u3002<\/li>\n\n\n\n<li><strong>\u6570\u636e\u4e22\u5931<\/strong>\uff1a\u786c\u76d8\u635f\u574f\u3001\u9ed1\u5ba2\u52d2\u7d22\u6216\u4eba\u4e3a\u8bef\u5220\u30023-2-1\u5907\u4efd\uff083\u4efd\u526f\u672c\u30012\u79cd\u4ecb\u8d28\u30011\u4efd\u5f02\u5730\uff09\u624d\u662f\u771f\u6b63\u4fdd\u969c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u7ebf\u52a0\u56fa\uff1a\u9632\u706b\u5899\u4e0eSSH<\/h2>\n\n\n\n<p>\u6211\u5728Ubuntu\u73af\u5883\u4e0b\u5e38\u7528\u7684\u505a\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>UFW\u9632\u706b\u5899<\/strong>\uff1a\u9ed8\u8ba4\u62d2\u7edd\u6240\u6709\u5165\u7ad9\uff0c\u53ea\u653e\u884c\u5fc5\u8981\u7aef\u53e3\uff0c\u6bd4\u5982<code>22\uff08\u9650IP\uff09<\/code>\u3001<code>80<\/code>\u3001<code>443<\/code>\u3002<\/li>\n\n\n\n<li><strong>SSH\u5b89\u5168<\/strong>\uff1a\u5173\u95edroot\u8fdc\u7a0b\u767b\u5f55\u3001\u7981\u7528\u5bc6\u7801\u8ba4\u8bc1\uff0c\u4ec5\u7528\u5bc6\u94a5\u65b9\u5f0f\u8fde\u63a5\u3002<\/li>\n\n\n\n<li><strong>Fail2Ban<\/strong>\uff1a\u81ea\u52a8\u76d1\u63a7\u65e5\u5fd7\uff0c\u9047\u5230\u7206\u7834\u5c1d\u8bd5\u65f6\u81ea\u52a8\u5c01IP\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\u4e00\u5957\u4e0b\u6765\uff0c\u540e\u53f0\u7206\u7834\u7684\u544a\u8b66\u6570\u91cf\u7acb\u523b\u4e0b\u964d\uff0c\u5f88\u591a\u6f5c\u5728\u98ce\u9669\u90fd\u88ab\u6321\u5728\u95e8\u5916\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f20\u8f93\u52a0\u5bc6\uff1aSSL\/TLS\u8bc1\u4e66\u81ea\u52a8\u5316<\/h2>\n\n\n\n<p>\u6570\u636e\u5b89\u5168\u4e0d\u80fd\u4ec5\u9760\u540e\u53f0\u8bbe\u7f6e\u3002\u6211\u4eec\u901a\u5e38\u4f1a\u4e3a\u6240\u6709\u7f51\u7ad9\u542f\u7528<strong>Let\u2019s Encrypt\u8bc1\u4e66<\/strong>\uff0c\u914d\u5408Certbot\u5b9e\u73b0\u5168\u81ea\u52a8\u7eed\u671f\u3002<\/p>\n\n\n\n<p><strong>\u843d\u5730\u5efa\u8bae\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528DNS\u63d2\u4ef6\u6216Webroot\u65b9\u5f0f\u7b7e\u53d1\uff0c\u907f\u514d\u624b\u52a8\u7eed\u671f\u9057\u6f0f\u3002<\/li>\n\n\n\n<li>\u4f18\u5148\u542f\u7528TLS1.2+\uff0c\u7981\u7528\u8fc7\u65f6\u534f\u8bae\u3002<\/li>\n\n\n\n<li>\u5f00\u542fHSTS\uff08\u4e25\u683c\u4f20\u8f93\u5b89\u5168\uff09\uff0c\u786e\u4fdd\u6240\u6709\u6d41\u91cf\u8d70HTTPS\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u6837\uff0c\u4f60\u4e0d\u4ec5\u80fd\u63d0\u5347\u641c\u7d22\u5f15\u64ce\u53cb\u597d\u5ea6\uff0c\u8fd8\u80fd\u8d62\u5f97\u7528\u6237\u4fe1\u4efb\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DDoS\u9632\u62a4\uff1a\u7f51\u7edc\u5c42+\u5e94\u7528\u5c42\u53cc\u4fdd\u9669<\/h2>\n\n\n\n<p>\u5149\u9760\u670d\u52a1\u5668\u672c\u8eab\u5f88\u96be\u625b\u4f4f\u5927\u6d41\u91cf\u653b\u51fb\u3002\u6211\u5728\u5b9e\u6218\u4e2d\u5e38\u7528\u4ee5\u4e0b\u7ec4\u5408\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f51\u7edc\u5c42\u9632\u62a4<\/strong>\uff1a\u9009<a href=\"https:\/\/cn.hostease.com\/gaofang.html\">\u9ad8\u9632\u670d\u52a1\u5668<\/a>\uff0c\u6216\u8005\u63a5\u5165\u4e13\u4e1a\u6e05\u6d17\u670d\u52a1\uff08\u5982Akamai Prolexic\uff09\u3002<\/li>\n\n\n\n<li><strong>\u5e94\u7528\u5c42\u9632\u62a4<\/strong>\uff1a\u7528Cloudflare\u7684DDoS\u9632\u62a4\u4e0eWAF\u6258\u7ba1\u89c4\u5219\uff0c\u5bf9HTTP\u6d2a\u6cdb\u3001\u6076\u610f\u722c\u866b\u6548\u679c\u660e\u663e\u3002GCP\u4e0a\u7684\u4e1a\u52a1\u5219\u53ef\u542f\u7528Google Cloud Armor\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u653b\u51fb\u9891\u7e41\uff0c\u4f60\u8fd8\u53ef\u4ee5\u7ed9\u767b\u5f55\u63a5\u53e3\/API\u53e0\u52a0\u9650\u6d41\u4e0e\u6311\u6218\u9a8c\u8bc1\uff0c\u8fd9\u6837\u80fd\u5927\u5e45\u964d\u4f4e\u6076\u610f\u6d41\u91cf\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u6570\u636e\u5907\u4efd\uff1a3-2-1\u7b56\u7565\u4e0e\u6062\u590d\u6f14\u7ec3<\/h2>\n\n\n\n<p>\u6211\u53d1\u73b0\u5f88\u591a\u4eba\u4ee5\u4e3a\u201c\u6709\u5907\u4efd\u5c31\u5b89\u5168\u201d\uff0c\u5176\u5b9e\u6700\u5173\u952e\u7684\u662f<strong>\u80fd\u6062\u590d<\/strong>\u3002<\/p>\n\n\n\n<p>\u6700\u4f73\u5b9e\u8df5\u662f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>3\u4efd\u526f\u672c<\/strong>\uff1a\u7ebf\u4e0a\u6570\u636e\u3001\u672c\u5730\u5feb\u7167\u3001\u5f02\u5730\u79bb\u7ebf\u3002<\/li>\n\n\n\n<li><strong>2\u79cd\u4ecb\u8d28<\/strong>\uff1a\u4f8b\u5982\u4e91\u5b58\u50a8+\u7269\u7406\u786c\u76d8\u3002<\/li>\n\n\n\n<li><strong>1\u4efd\u5f02\u5730\u5907\u4efd<\/strong>\uff1a\u786e\u4fdd\u52d2\u7d22\u6216\u707e\u96be\u53d1\u751f\u65f6\u4ecd\u80fd\u6062\u590d\u3002<\/li>\n\n\n\n<li><strong>\u5b9a\u671f\u6f14\u7ec3<\/strong>\uff1a\u81f3\u5c11\u6bcf\u6708\u6d4b\u8bd5\u4e00\u6b21\u6062\u590d\u6d41\u7a0b\uff0c\u786e\u4fddRTO\uff08\u6062\u590d\u65f6\u95f4\uff09\u548cRPO\uff08\u6570\u636e\u4e22\u5931\u8303\u56f4\uff09\u7b26\u5408\u9884\u671f\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u6218\u6848\u4f8b\u5206\u4eab<\/h2>\n\n\n\n<p><strong>\u6848\u4f8b\u4e00\uff1a\u5185\u5bb9\u7ad9\u540e\u53f0\u7206\u7834<\/strong><br>\u6211\u4eec\u542f\u7528UFW\u9ed8\u8ba4\u62d2\u7edd\uff0cSSH\u4ec5\u5bc6\u94a5\uff0c\u524d\u7f6eCloudflare\u5e76\u5f00\u542fWAF\u89c4\u5219\u3002\u7ed3\u679c\u662f\u540e\u53f0\u653b\u51fb\u6b21\u6570\u9aa4\u51cf\uff0c\u7f51\u7ad9\u51e0\u4e4e\u4e0d\u518d\u6389\u7ebf\u3002<\/p>\n\n\n\n<p><strong>\u6848\u4f8b\u4e8c\uff1a\u6e38\u620f\u670d\u52a1\u5668\u906d\u9047UDP\u6d2a\u6cdb<\/strong><br>\u8fc1\u79fb\u81f3\u81ea\u5e26\u6e05\u6d17\u7684\u673a\u623f\uff0c\u5e76\u5728\u4e3b\u673a\u5c42\u9650\u5236\u5f02\u5e38\u7aef\u53e3\u3002\u653b\u51fb\u9ad8\u5cf0\u671f\uff0c\u5ef6\u8fdf\u4ece\u6570\u767ems\u964d\u56de\u6b63\u5e38\uff0c\u73a9\u5bb6\u5728\u7ebf\u7a33\u5b9a\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<p><strong>Q\uff1a\u514d\u5b9e\u540d\u670d\u52a1\u5668\u66f4\u5bb9\u6613\u88ab\u653b\u51fb\u5417\uff1f<\/strong><br>A\uff1a\u4e0d\u4f1a\u3002\u653b\u51fb\u8005\u66f4\u5173\u5fc3\u7aef\u53e3\u548c\u6f0f\u6d1e\uff0c\u800c\u4e0d\u662f\u5b9e\u540d\u4e0e\u5426\u3002\u5173\u952e\u8fd8\u662f\u914d\u7f6e\u5230\u4f4d\u3002<\/p>\n\n\n\n<p><strong>Q\uff1aCloudflare\u514d\u8d39\u7248\u80fd\u6297DDoS\u5417\uff1f<\/strong><br>A\uff1a\u4e2d\u5c0f\u89c4\u6a21HTTP\u653b\u51fb\u57fa\u672c\u6ca1\u95ee\u9898\uff0c\u4f46\u975eHTTP\u6d41\u91cf\u6216\u5927\u89c4\u6a21\u653b\u51fb\u9700\u8981\u4ed8\u8d39\u65b9\u6848\u6216\u673a\u623f\u6e05\u6d17\u3002<\/p>\n\n\n\n<p><strong>Q\uff1aLet\u2019s 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