{"id":209040,"date":"2025-09-30T03:21:25","date_gmt":"2025-09-29T19:21:25","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209040\/"},"modified":"2025-09-30T03:21:25","modified_gmt":"2025-09-29T19:21:25","slug":"%e9%a6%99%e6%b8%afvps%e9%98%b2%e7%81%ab%e5%a2%99%e8%87%aa%e5%ae%9a%e4%b9%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209040\/","title":{"rendered":"\u9999\u6e2fVPS\u9632\u706b\u5899\u81ea\u5b9a\u4e49\u89c4\u5219\u9009\u8d2d\u6307\u5357\uff1a\u5728\u5b89\u5168\u4e0e\u6027\u80fd\u95f4\u505a\u51fa\u6700\u4f73\u9009\u62e9"},"content":{"rendered":"<p>\u5728\u4e91\u670d\u52a1\u666e\u53ca\u7684\u4eca\u5929\uff0c\u7ad9\u957f\u3001\u4f01\u4e1a\u4e0e\u5f00\u53d1\u8005\u5728\u9009\u62e9VPS\u65f6\uff0c\u5b89\u5168\u7b56\u7565\u548c\u6027\u80fd\u5f00\u9500\u5e38\u5e38\u4ea7\u751f\u51b2\u7a81\u3002\u5c24\u5176\u662f\u9762\u5411\u4e9a\u592a\u7684\u4e1a\u52a1\u4f1a\u4f18\u5148\u8003\u8651\u9999\u6e2fVPS\uff0c\u4ee5\u964d\u4f4e\u5ef6\u8fdf\u5e76\u6ee1\u8db3\u672c\u5730\u5408\u89c4\u9700\u6c42\uff1b\u800c\u8de8\u533a\u5907\u4efd\u6216\u955c\u50cf\u53ef\u80fd\u4f7f\u7528\u7f8e\u56fdVPS 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\u7f51\u7edc\u9632\u706b\u5899\uff1a<\/strong>\u5728\u865a\u62df\u7f51\u7edc\u5c42\u5b9e\u73b0\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u80fd\u5728\u5bbf\u4e3b\u673a\u4e4b\u5916\u8fc7\u6ee4\u6d41\u91cf\uff0c\u51cf\u8f7b VPS \u8d1f\u8f7d\u3002<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u89c4\u5219\u793a\u4f8b<\/h2>\n<p>\u6839\u636e\u4e1a\u52a1\u7279\u6027\uff0c\u9632\u706b\u5899\u89c4\u5219\u7684\u8bbe\u8ba1\u4f1a\u4e0d\u540c\u3002\u4e0b\u9762\u7ed9\u51fa\u5178\u578b\u573a\u666f\u4e0e\u53ef\u590d\u7528\u7684\u89c4\u5219\u6a21\u677f\u3002<\/p>\n<h3>\u573a\u666f\u4e00\uff1aWeb \u670d\u52a1\uff08HTTP\/HTTPS\uff09<\/h3>\n<ul>\n<li>\u4ec5\u5141\u8bb8 80\/443 \u7aef\u53e3\u5165\u7ad9\uff0c\u5176\u4ed6\u7aef\u53e3\u9ed8\u8ba4\u62d2\u7edd\u3002<\/li>\n<li>\u9650\u5236 SSH\uff0822\uff09\u4ec5\u5141\u8bb8\u7ba1\u7406 IP \u767d\u540d\u5355\uff0c\u6216\u6539\u7528\u975e\u6807\u51c6\u7aef\u53e3\u5e76\u914d\u5408\u516c\u94a5\u8ba4\u8bc1\u3002<\/li>\n<li>\u542f\u7528 SYN \u9650\u901f\u4e0e TCP 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fail2ban\uff1a\u57fa\u4e8e\u767b\u5f55\u5931\u8d25\u65e5\u5fd7\u81ea\u52a8\u4e0b\u53d1 iptables \u89c4\u5219\u3002<\/li>\n<li>\u5bf9\u77ed\u65f6\u95f4\u5185\u7684\u9ad8\u9891\u8bf7\u6c42\u4f7f\u7528\u4e34\u65f6\u5c01\u7981\u7b56\u7565\uff08\u52a8\u6001\u9ed1\u540d\u5355\uff09\u3002<\/li>\n<\/ul>\n<h2>\u5728\u5b89\u5168\u6536\u76ca\u4e0e\u6027\u80fd\u5f00\u9500\u4e4b\u95f4\u7684\u6743\u8861<\/h2>\n<p>\u6bcf\u4e00\u6761\u9632\u706b\u5899\u89c4\u5219\u548c\u6bcf\u4e00\u6b21\u72b6\u6001\u8ddf\u8e2a\u90fd\u4f1a\u6d88\u8017 CPU\u3001\u5185\u5b58\u548c\u589e\u52a0\u5305\u5904\u7406\u5ef6\u8fdf\u3002\u5173\u952e\u70b9\u5728\u4e8e\uff1a\u54ea\u4e9b\u68c0\u67e5\u5fc5\u987b\u5728\u4e3b\u673a\u4e0a\u6267\u884c\uff0c\u54ea\u4e9b\u53ef\u4ee5\u4e0a\u79fb\u5230\u7f51\u7edc\u5c42\u6216\u4e91\u7aef\u7f51\u5173\u3002<\/p>\n<h3>\u6027\u80fd\u5f71\u54cd\u56e0\u7d20<\/h3>\n<ul>\n<li><strong>\u89c4\u5219\u6570\u91cf\u4e0e\u987a\u5e8f\uff1a<\/strong>iptables \u4e3a\u7ebf\u6027\u5339\u914d\uff0c\u89c4\u5219\u591a\u4e14\u653e\u5728\u94fe\u9996\u4f1a\u589e\u52a0\u5904\u7406\u65f6\u95f4\u3002\u4f7f\u7528 ipset \u4e0e nftables \u7684\u96c6\u5408\u5339\u914d\u80fd\u663e\u8457\u964d\u4f4e\u5f00\u9500\u3002<\/li>\n<li><strong>\u72b6\u6001\u8ddf\u8e2a\u8868\u5927\u5c0f\uff1a<\/strong>\u5927\u91cf\u5e76\u53d1\u8fde\u63a5\u4f1a\u5bfc\u81f4 conntrack \u8868\u6ea2\u51fa\uff0c\u8868\u73b0\u4e3a\u65b0\u8fde\u63a5\u88ab\u9519\u8bef\u4e22\u5f03\u3002<\/li>\n<li><strong>\u6df1\u5ea6\u5305\u68c0\u6d4b\uff08DPI\uff09\u4e0e\u65e5\u5fd7\u9891\u7387\uff1a<\/strong>\u542f\u7528 DPI \u6216\u8be6\u7ec6\u65e5\u5fd7\u4f1a\u589e\u52a0 CPU \u5f00\u9500\u4e0e\u78c1\u76d8\u5199\u5165\uff0c\u5f71\u54cd\u54cd\u5e94\u3002<\/li>\n<li><strong>\u4e91\u7aef\u8fc7\u6ee4\uff1a<\/strong>\u628a\u7b80\u5355\u3001\u4f4e\u6210\u672c\u7684\u8fc7\u6ee4\u4e0a\u79fb\u5230\u4e91\u7aef\uff08\u5982\u5b89\u5168\u7ec4\u3001\u4e91\u9632\u706b\u5899\uff09\uff0c\u80fd\u51cf\u5c11 VPS \u5185\u6838\u8d1f\u62c5\u3002<\/li>\n<\/ul>\n<h3>\u5982\u4f55\u4f18\u5316\u4ee5\u517c\u987e\u4e24\u8005<\/h3>\n<ul>\n<li>\u4f18\u5148\u7528 ipset\/nftables \u7684\u96c6\u5408\u5339\u914d\u66ff\u4ee3\u957f\u94fe\u89c4\u5219\u3002<\/li>\n<li>\u5c06\u5927\u6d41\u91cf\u3001\u5df2\u77e5\u6076\u610f IP \u7684\u8fc7\u6ee4\u4ea4\u7531\u4e91\u7aef\u6216\u8005\u8fb9\u7f18 CDN\uff08\u5982\u6709\uff09\u5904\u7406\u3002<\/li>\n<li>\u5bf9 conntrack \u8868\u4e0e\u5185\u6838\u7f51\u7edc\u53c2\u6570\u505a\u5bb9\u91cf\u89c4\u5212\uff1a\u8c03\u6574 net.netfilter.nf_conntrack_max\u3001tcp_fin_timeout \u7b49\u3002<\/li>\n<li>\u4ec5\u8bb0\u5f55\u5fc5\u8981\u65e5\u5fd7\uff0c\u4f7f\u7528\u5f02\u6b65\/\u6279\u91cf\u53d1\u9001\u65e5\u5fd7\u5230\u8fdc\u7aef\u65e5\u5fd7\u7cfb\u7edf\uff0c\u907f\u514d\u78c1\u76d8\u74f6\u9888\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u9999\u6e2fVPS\u65f6\u7684\u9632\u706b\u5899\u8bc4\u4f30\u8981\u70b9<\/h2>\n<p>\u5728\u9009\u62e9\u9999\u6e2f\u670d\u52a1\u5668\u65f6\uff0c\u4e0d\u53ea\u662f\u770b CPU\u3001\u5185\u5b58\u548c\u5e26\u5bbd\uff0c\u8fd8\u8981\u91cd\u70b9\u8bc4\u4f30\u7f51\u7edc\u5b89\u5168\u80fd\u529b\u4e0e\u53ef\u914d\u7f6e\u6027\uff1a<\/p>\n<ul>\n<li><strong>\u662f\u5426\u63d0\u4f9b\u4e91\u7aef\u7f51\u7edc\u9632\u706b\u5899\u6216\u5b89\u5168\u7ec4\uff1a<\/strong>\u4e91\u7aef\u5b89\u5168\u7ec4\u80fd\u5728\u5bbf\u4e3b\u673a\u4e4b\u524d\u8fc7\u6ee4\u975e\u6cd5\u6d41\u91cf\uff0c\u662f\u51cf\u8f7b VPS \u8d1f\u8f7d\u3001\u62b5\u5fa1\u57fa\u7840 DDoS \u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002<\/li>\n<li><strong>\u662f\u5426\u652f\u6301\u81ea\u5b9a\u4e49 iptables \/ nftables\uff1a<\/strong>\u90e8\u5206\u6258\u7ba1\u63a7\u5236\u9762\u677f\u4f1a\u9650\u5236\u81ea\u5b9a\u4e49\u89c4\u5219\uff0c\u786e\u8ba4\u60a8\u80fd\u76f4\u63a5\u8bbf\u95ee\u5185\u6838\u5c42\u914d\u7f6e\u3002<\/li>\n<li><strong>\u5e26\u5bbd\u4e0e\u4e0a\u884c\u7a33\u5b9a\u6027\uff1a<\/strong>\u5728\u9762\u5bf9\u653b\u51fb\u65f6\uff0c\u5e26\u5bbd\u662f\u74f6\u9888\uff1b\u9009\u62e9\u6709 DDoS \u7f13\u89e3\u80fd\u529b\u7684\u4f9b\u5e94\u5546\u80fd\u4fdd\u62a4\u4e1a\u52a1\u53ef\u7528\u6027\u3002<\/li>\n<li><strong>\u8d44\u6e90\u4f38\u7f29\u6027\uff1a<\/strong>\u5f53\u542f\u7528\u590d\u6742\u89c4\u5219\u6216\u65e5\u5fd7\u65f6\uff0cCPU \u548c\u5185\u5b58\u6d88\u8017\u4f1a\u4e0a\u5347\uff0c\u5f39\u6027\u6269\u5bb9\u80fd\u529b\u53ef\u4ee5\u5e94\u5bf9\u7a81\u53d1\u6d41\u91cf\u3002<\/li>\n<li><strong>\u5730\u57df\u4e0e\u5408\u89c4\uff1a<\/strong>\u5bf9 latency \u654f\u611f\u7684\u4e1a\u52a1\u9009\u9999\u6e2fVPS\uff0c\u8de8\u533a\u5907\u4efd\u53ef\u9009\u7f8e\u56fdVPS \u6216 \u7f8e\u56fd\u670d\u52a1\u5668\uff0c\u7ed3\u5408\u591a\u5730\u57df\u7b56\u7565\u63d0\u9ad8\u53ef\u7528\u6027\u3002<\/li>\n<\/ul>\n<h3>\u5b9e\u4f8b\u5bf9\u6bd4\u2014\u2014\u4e3b\u673a\u7ea7 vs \u4e91\u7aef\u9632\u706b\u5899<\/h3>\n<ul>\n<li>\u4e3b\u673a\u7ea7\uff08iptables\/nftables\uff09\uff1a\u7075\u6d3b\u3001\u7c92\u5ea6\u9ad8\uff0c\u4f46\u5728\u9ad8\u6d41\u91cf\u4e0b\u4f1a\u6d88\u8017 VPS \u8d44\u6e90\u3002<\/li>\n<li>\u4e91\u7aef\u9632\u706b\u5899\/\u8fb9\u7f18\u8bbe\u5907\uff1a\u5904\u7406\u80fd\u529b\u5f3a\uff0c\u53ef\u62b5\u5fa1\u5927\u6d41\u91cf\u653b\u51fb\uff0c\u4f46\u89c4\u5219\u7c92\u5ea6\u53ca\u65e5\u5fd7\u53ef\u80fd\u53d7\u9650\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u8df5\u5efa\u8bae\u4e0e\u914d\u7f6e\u6e05\u5355<\/h2>\n<p>\u4e0b\u9762\u662f\u4e00\u4efd\u53ef\u64cd\u4f5c\u7684\u6e05\u5355\uff0c\u4fbf\u4e8e\u5728\u9999\u6e2fVPS \u6216\u5176\u4ed6\u5730\u57df\uff08\u5982\u7f8e\u56fdVPS\uff09\u4e0a\u5feb\u901f\u6784\u5efa\u5e73\u8861\u7684\u9632\u62a4\u4f53\u7cfb\uff1a<\/p>\n<ul>\n<li>\u542f\u7528\u4e91\u7aef\u5b89\u5168\u7ec4\uff0c\u9884\u5148\u963b\u65ad\u5df2\u77e5\u5927\u9762\u79ef\u626b\u63cf\u4e0e\u5e38\u89c1\u7aef\u53e3\u3002<\/li>\n<li>\u5728 VPS \u5185\u90e8\u4f7f\u7528 nftables + ipset \u4f5c\u4e3a\u4e3b\u8fc7\u6ee4\u5f15\u64ce\uff0c\u51cf\u5c11\u94fe\u904d\u5386\u6210\u672c\u3002<\/li>\n<li>\u628a\u9ad8\u9891\u65e5\u5fd7\u53d1\u9001\u5230\u8fdc\u7aef ELK\/Graylog\uff0c\u4e3b\u673a\u4ec5\u4fdd\u7559\u9519\u8bef\u7ea7\u522b\u65e5\u5fd7\u3002<\/li>\n<li>\u4f7f\u7528 fail2ban \u6216\u7c7b\u4f3c\u5de5\u5177\u5904\u7406\u767b\u5f55\u7c7b\u66b4\u529b\u884c\u4e3a\uff0c\u5e76\u7ed3\u5408\u4e34\u65f6 ipset \u9ed1\u540d\u5355\u3002<\/li>\n<li>\u5b9a\u671f\u5ba1\u67e5 conntrack \u4f7f\u7528\u7387\uff0c\u8bbe\u7f6e\u62a5\u8b66\uff1b\u5fc5\u8981\u65f6\u63d0\u9ad8 nf_conntrack_max \u5e76\u76d1\u63a7\u5185\u5b58\u3002<\/li>\n<li>\u505a\u5bb9\u91cf\u6d4b\u8bd5\uff1a\u5728\u4e0a\u7ebf\u524d\u6a21\u62df\u5e76\u53d1\u8fde\u63a5\u4e0e\u653b\u51fb\u6d41\u91cf\uff0c\u89c2\u5bdf\u89c4\u5219\u5904\u7406\u5ef6\u8fdf\u4e0e\u8d44\u6e90\u5360\u7528\u3002<\/li>\n<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u6784\u5efa\u6709\u6548\u7684\u9632\u706b\u5899\u7b56\u7565\u5e76\u975e\u5355\u9760\u5806\u780c\u89c4\u5219\uff0c\u800c\u662f\u8981\u5728\u7f51\u7edc\u5c42\u4e0e\u4e3b\u673a\u5c42\u4e4b\u95f4\u5408\u7406\u5206\u914d\u804c\u8d23\uff1a\u628a\u5e7f\u6cdb\u4e14\u5927\u6d41\u91cf\u7684\u8fc7\u6ee4\u4ea4\u7ed9\u4e91\u7aef\u6216\u8fb9\u7f18\u8bbe\u5907\uff0c\u628a\u7ec6\u7c92\u5ea6\u7684\u8bbf\u95ee\u63a7\u5236\u4ea4\u7ed9\u4e3b\u673a\u7ea7\u9632\u706b\u5899\u3002<strong>\u4f7f\u7528 ipset\u3001nftables\u3001\u4e91\u7aef\u5b89\u5168\u7ec4\u4e0e\u65e5\u5fd7\u53bb\u8026\u5408<\/strong>\uff0c\u80fd\u5728\u4fdd\u8bc1\u5b89\u5168\u6027\u7684\u540c\u65f6\u964d\u4f4e\u6027\u80fd\u5f00\u9500\u3002\u5bf9\u5ef6\u8fdf\u654f\u611f\u6216\u9762\u5411\u4e9a\u592a\u7528\u6237\u7684\u5e94\u7528\uff0c\u9009\u62e9\u9999\u6e2fVPS \u6709\u5229\u4e8e\u7528\u6237\u4f53\u9a8c\uff1b\u800c\u8de8\u533a\u57df\u5197\u4f59\u53ef\u4f7f\u7528\u7f8e\u56fdVPS \u6216 \u7f8e\u56fd\u670d\u52a1\u5668 \u4f5c\u4e3a\u5907\u4efd\u8282\u70b9\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u8bc4\u4f30\u5177\u4f53\u7684\u9999\u6e2fVPS \u4ea7\u54c1\u6216\u9700\u8981\u53c2\u8003\u914d\u7f6e\u6a21\u677f\uff0c\u53ef\u67e5\u770b Server.HK \u7684\u9999\u6e2fVPS \u4ea7\u54c1\u8be6\u60c5\u9875\u4e86\u89e3\u5e26\u5bbd\u3001DDoS \u9632\u62a4\u4e0e\u81ea\u5b9a\u4e49\u89c4\u5219\u652f\u6301\uff1a<a href=\"https:\/\/www.server.hk\/cloud.php\">\u9999\u6e2fVPS \u4ea7\u54c1\u9875\u9762<\/a>\u3002\u66f4\u591a\u5173\u4e8e\u9999\u6e2f\u670d\u52a1\u5668\u4e0e\u7f8e\u56fd\u670d\u52a1\u5668\u7684\u90e8\u7f72\u5efa\u8bae\u4e0e\u6848\u4f8b\uff0c\u4e5f\u53ef\u4ee5\u5728 Server.HK 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