{"id":13496,"date":"2024-07-12T15:38:58","date_gmt":"2024-07-12T07:38:58","guid":{"rendered":"https:\/\/www.simcentric.com\/uncategorized-tc\/how-firewalls-protect-network-servers-from-attacks\/"},"modified":"2024-07-12T15:40:45","modified_gmt":"2024-07-12T07:40:45","slug":"how-firewalls-protect-network-servers-from-attacks","status":"publish","type":"post","link":"https:\/\/www.simcentric.com\/tc\/hong-kong-dedicated-server-tc\/how-firewalls-protect-network-servers-from-attacks\/","title":{"rendered":"\u9632\u706b\u7246\u5982\u4f55\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u653b\u64ca\uff1f"},"content":{"rendered":"

\u9632\u706b\u7246<\/a>\u5728\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668<\/a>\u514d\u53d7\u591a\u7a2e\u7db2\u8def\u653b\u64ca\u4e2d\u8d77\u8457\u95dc\u9375\u4f5c\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9632\u706b\u7246\u5982\u4f55\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\uff0c\u7279\u5225\u662f\u95dc\u6ce8\u6280\u8853\u611b\u597d\u8005\u548cIT\u5c08\u696d\u4eba\u54e1\u9700\u8981\u4e86\u89e3\u7684\u6280\u8853\u7d30\u7bc0\u3002<\/p>\n

\u4e86\u89e3\u9632\u706b\u7246\u7684\u57fa\u672c\u539f\u7406<\/strong><\/h2>\n

\u5f9e\u672c\u8cea\u4e0a\u8b1b\uff0c\u9632\u706b\u7246\u662f\u4e00\u7a2e\u7db2\u8def\u5b89\u5168\u8a2d\u5099\uff0c\u6839\u64da\u7d44\u7e54\u9810\u5148\u5efa\u7acb\u7684\u5b89\u5168\u7b56\u7565\u76e3\u63a7\u548c\u904e\u6ffe\u9032\u51fa\u7db2\u8def\u7684\u6d41\u91cf\u3002\u5b83\u5728\u53ef\u4fe1\u7684\u5167\u90e8\u7db2\u8def\u548c\u4e0d\u53ef\u4fe1\u7684\u5916\u90e8\u7db2\u8def\uff08\u5982\u4e92\u806f\u7db2\uff09\u4e4b\u9593\u5145\u7576\u5c4f\u969c\u3002<\/p>\n

\u9632\u706b\u7246\u7684\u4e3b\u8981\u529f\u80fd<\/strong><\/h2>\n

\u9632\u706b\u7246\u57f7\u884c\u591a\u9805\u95dc\u9375\u529f\u80fd\u4ee5\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\uff1a<\/p>\n

1. \u6d41\u91cf\u904e\u6ffe<\/h2>\n

\u9632\u706b\u7246\u4ed4\u7d30\u6aa2\u67e5\u9032\u5165\u6216\u96e2\u958b\u7db2\u8def\u7684\u6bcf\u500b\u8cc7\u6599\u5305\u3002\u6b64\u904e\u7a0b\u5305\u62ec\u6839\u64da\u9810\u5b9a\u7fa9\u7684\u5b89\u5168\u898f\u5247\u6aa2\u67e5\u8cc7\u6599\u5305\u7684\u4f86\u6e90\u548c\u76ee\u7684IP\u5730\u5740\u3001\u7aef\u53e3\u865f\u548c\u5354\u8b70\u3002<\/p>\n

2. \u8a2a\u554f\u63a7\u5236<\/h2>\n

\u9632\u706b\u7246\u901a\u904e\u5141\u8a31\u6216\u62d2\u7d55\u57fa\u65bcIP\u5730\u5740\u3001\u57df\u540d\u6216\u4f7f\u7528\u8005\u8eab\u4efd\u9a57\u8b49\u7684\u6d41\u91cf\u4f86\u5be6\u65bd\u8a2a\u554f\u63a7\u5236\u7b56\u7565\u3002\u9019\u78ba\u4fdd\u53ea\u6709\u6388\u6b0a\u7684\u4f7f\u7528\u8005\u548c\u8a2d\u5099\u53ef\u4ee5\u8a2a\u554f\u7db2\u8def\u4f3a\u670d\u5668\u3002<\/p>\n

3. \u5165\u4fb5\u6aa2\u6e2c\u548c\u9632\u79a6<\/h2>\n

\u9ad8\u7d1a\u9632\u706b\u7246\u6574\u5408\u4e86\u5165\u4fb5\u6aa2\u6e2c\u7cfb\u7d71\uff08IDS\uff09\u548c\u5165\u4fb5\u9632\u79a6\u7cfb\u7d71\uff08IPS\uff09\uff0c\u4ee5\u6aa2\u6e2c\u548c\u963b\u6b62\u60e1\u610f\u6d3b\u52d5\u3002\u9019\u4e9b\u7cfb\u7d71\u5206\u6790\u7db2\u8def\u6d41\u91cf\u6a21\u5f0f\u548c\u884c\u70ba\uff0c\u4ee5\u8b58\u5225\u548c\u7de9\u89e3\u6f5b\u5728\u5a01\u8105\u3002<\/p>\n

\u9632\u706b\u7246\u5982\u4f55\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668<\/strong><\/h2>\n

\u9632\u706b\u7246\u63d0\u4f9b\u591a\u5c64\u9632\u79a6\u6a5f\u5236\uff0c\u4ee5\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u5404\u7a2e\u985e\u578b\u7684\u7db2\u8def\u653b\u64ca\u3002\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

1. \u9650\u5236\u4e0d\u5fc5\u8981\u7684\u7aef\u53e3\u8a2a\u554f<\/h2>\n

\u9632\u706b\u7246\u9650\u5236\u5c0d\u5e38\u898f\u64cd\u4f5c\u4e0d\u9700\u8981\u7684\u7279\u5b9a\u7aef\u53e3\u7684\u8a2a\u554f\u3002\u4f8b\u5982\uff0cWeb\u4f3a\u670d\u5668\u901a\u5e38\u53ea\u9700\u8981\u6253\u958b\u7aef\u53e380\uff08HTTP\uff09\u548c443\uff08HTTPS\uff09\u3002\u53ef\u4ee5\u963b\u6b62\u6240\u6709\u5176\u4ed6\u7aef\u53e3\u4ee5\u6e1b\u5c11\u653b\u64ca\u9762\u3002<\/p>\n

iptables -A INPUT -p tcp --dport 80 -j ACCEPT\r\niptables -A INPUT -p tcp --dport 443 -j ACCEPT\r\niptables -A INPUT -p tcp -j DROP<\/code><\/pre>\n
\u5728\u4e0a\u8ff0\u7bc4\u4f8b\u4e2d\uff0c\u9632\u706b\u7246\u914d\u7f6e\u5141\u8a31HTTP\u548cHTTPS\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\uff0c\u540c\u6642\u963b\u6b62\u6240\u6709\u5176\u4ed6TCP\u6d41\u91cf\u3002<\/p>\n
2. \u5730\u7406\u4f4d\u7f6e\u904e\u6ffe<\/h2>\n
\u9632\u706b\u7246\u53ef\u4ee5\u61c9\u7528\u5730\u7406\u4f4d\u7f6e\u904e\u6ffe\uff0c\u963b\u6b62\u4f86\u81ea\u5df2\u77e5\u60e1\u610f\u6d3b\u52d5\u7684\u7279\u5b9a\u570b\u5bb6\u6216\u5730\u5340\u7684\u6d41\u91cf\u3002\u9019\u70ba\u7db2\u8def\u4f3a\u670d\u5668\u589e\u52a0\u4e86\u4e00\u5c64\u984d\u5916\u7684\u5b89\u5168\u6027\u3002<\/p>\n
iptables -A INPUT -m geoip --src-cc US, KR -j DROP<\/code><\/pre>\n
\u9019\u88e1\u7684\u9632\u706b\u7246\u898f\u5247\u963b\u64cb\u4f86\u81ea\u7f8e\u570b (US) \u548c\u97d3\u570b (KR) \u7684\u6d41\u91cf\u3002<\/p>\n
3. \u865b\u64ec\u5c08\u7528\u7db2\u8def\uff08VPN\uff09\u6574\u5408<\/h2>\n
\u9632\u706b\u7246\u901a\u5e38\u8207VPN\u6574\u5408\uff0c\u4ee5\u78ba\u4fdd\u9060\u7aef\u8a2a\u554f\u7db2\u8def\u4f3a\u670d\u5668\u7684\u5b89\u5168\u3002VPN\u63d0\u4f9b\u52a0\u5bc6\u96a7\u9053\u9032\u884c\u8cc7\u6599\u50b3\u8f38\uff0c\u78ba\u4fdd\u654f\u611f\u8cc7\u8a0a\u4e0d\u6703\u88ab\u6514\u622a\u3002<\/p>\n
4. DDoS\u653b\u64ca\u7de9\u89e3<\/h2>\n
\u9632\u706b\u7246\u53ef\u4ee5\u900f\u904e\u76e3\u63a7\u6d41\u91cf\u6a21\u5f0f\u548c\u9650\u5236\u9023\u63a5\u901f\u7387\u4f86\u6aa2\u6e2c\u548c\u7de9\u89e3\u5206\u4f48\u5f0f\u62d2\u7d55\u670d\u52d9\uff08DDoS\uff09\u653b\u64ca\u3002\u9019\u53ef\u4ee5\u9632\u6b62\u7db2\u8def\u4f3a\u670d\u5668\u88ab\u60e1\u610f\u6d41\u91cf\u6df9\u6c92\u3002<\/p>\n
iptables -A INPUT -p tcp --dport 80 -m limit --limit 25\/minute --limit-burst 50 -j ACCEPT\r\niptables -A INPUT -p tcp --dport 80 -j DROP<\/code><\/pre>\n
\u4e0a\u8ff0\u898f\u5247\u9650\u5236\u8acb\u6c42\u6578\u70ba\u6bcf\u5206\u941825\u500b\uff0c\u7a81\u767c\u8acb\u6c42\u6578\u70ba50\u500b\uff0c\u4ee5\u9632\u79a6DDoS\u653b\u64ca\u3002<\/p>\n
\u90e8\u7f72\u548c\u7ba1\u7406\u9632\u706b\u7246<\/strong><\/h2>\n
\u6709\u6548\u7684\u9632\u706b\u7246\u90e8\u7f72\u548c\u7ba1\u7406\u5c0d\u65bc\u6700\u4f73\u4fdd\u8b77\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n
1. \u6b63\u78ba\u914d\u7f6e<\/h2>\n
\u78ba\u4fdd\u9632\u706b\u7246\u898f\u5247\u6b63\u78ba\u914d\u7f6e\uff0c\u4ee5\u5141\u8a31\u5408\u6cd5\u6d41\u91cf\uff0c\u540c\u6642\u963b\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002\u5b9a\u671f\u5be9\u67e5\u548c\u66f4\u65b0\u9019\u4e9b\u898f\u5247\u4ee5\u9069\u61c9\u4e0d\u65b7\u8b8a\u5316\u7684\u5a01\u8105\u3002<\/p>\n
2. \u5b9a\u671f\u66f4\u65b0<\/h2>\n
\u4fdd\u6301\u9632\u706b\u7246\u97cc\u9ad4\u548c\u8edf\u9ad4\u7684\u6700\u65b0\u72c0\u614b\uff0c\u4ee5\u7372\u5f97\u6700\u65b0\u7684\u88dc\u4e01\u548c\u66f4\u65b0\uff0c\u9632\u6b62\u65b0\u767c\u73fe\u7684\u6f0f\u6d1e\u3002<\/p>\n
3. \u76e3\u63a7\u548c\u65e5\u8a8c\u8a18\u9304<\/h2>\n
\u555f\u7528\u9632\u706b\u7246\u4e0a\u7684\u65e5\u8a8c\u8a18\u9304\u548c\u76e3\u63a7\u529f\u80fd\uff0c\u4ee5\u8ffd\u8e64\u7db2\u8def\u6d41\u91cf\u4e26\u8b58\u5225\u6f5b\u5728\u7684\u5b89\u5168\u4e8b\u4ef6\u3002\u5b9a\u671f\u5206\u6790\u65e5\u8a8c\uff0c\u4ee5\u6aa2\u6e2c\u7570\u5e38\u4e26\u53ca\u6642\u56de\u61c9\u5a01\u8105\u3002<\/p>\n
\u5c07\u9632\u706b\u7246\u8207\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u76f8\u7d50\u5408<\/strong><\/h2>\n
\u5168\u9762\u7684\u5b89\u5168\u7b56\u7565\u5305\u62ec\u5c07\u9632\u706b\u7246\u8207\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u7d50\u5408\u8d77\u4f86\uff0c\u4ee5\u5275\u5efa\u591a\u5c64\u9632\u79a6\u3002\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
1. \u9632\u706b\u7246\u8207\u9632\u75c5\u6bd2\u8edf\u9ad4<\/h2>\n
\u5c07\u9632\u706b\u7246\u8207\u9632\u75c5\u6bd2\u8edf\u9ad4\u6574\u5408\uff0c\u4ee5\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u60e1\u610f\u8edf\u9ad4\u548c\u75c5\u6bd2\u7684\u4fb5\u5bb3\u3002\u9632\u706b\u7246\u963b\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\uff0c\u800c\u9632\u75c5\u6bd2\u8edf\u9ad4\u8b58\u5225\u548c\u522a\u9664\u60e1\u610f\u8edf\u9ad4\u3002<\/p>\n
2. \u9632\u706b\u7246\u8207SIEM<\/h2>\n
\u5b89\u5168\u8cc7\u8a0a\u548c\u4e8b\u4ef6\u7ba1\u7406\uff08SIEM\uff09\u7cfb\u7d71\u5f59\u96c6\u548c\u5206\u6790\u4f86\u81ea\u591a\u500b\u4f86\u6e90\uff08\u5305\u62ec\u9632\u706b\u7246\uff09\u7684\u5b89\u5168\u8cc7\u6599\u3002\u9019\u63d0\u4f9b\u4e86\u7db2\u8def\u5b89\u5168\u614b\u52e2\u7684\u6574\u9ad4\u8996\u5716\uff0c\u6709\u52a9\u65bc\u66f4\u6709\u6548\u5730\u8b58\u5225\u548c\u7de9\u89e3\u5a01\u8105\u3002<\/p>\n
\u9632\u706b\u7246\u5728\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u5404\u7a2e\u7db2\u8def\u653b\u64ca\u65b9\u9762\u4e0d\u53ef\u6216\u7f3a\u3002\u900f\u904e\u4e86\u89e3\u5176\u529f\u80fd\u3001\u6709\u6548\u90e8\u7f72\u5b83\u5011\u4e26\u5c07\u5176\u8207\u5176\u4ed6\u5b89\u5168\u63aa\u65bd\u7d50\u5408\u8d77\u4f86\uff0c\u7d44\u7e54\u53ef\u4ee5\u986f\u8457\u589e\u5f37\u5176\u7db2\u8def\u5b89\u5168\u6027\u3002\u96a8\u8457\u7db2\u8def\u5a01\u8105\u7684\u6301\u7e8c\u767c\u5c55\uff0c\u4fdd\u6301\u8cc7\u8a0a\u548c\u8b66\u89ba\u662f\u7dad\u6301\u5f37\u5927\u4fdd\u8b77\u7684\u95dc\u9375\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u9632\u706b\u7246\u5728\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u591a\u7a2e\u7db2\u8def\u653b\u64ca\u4e2d\u8d77\u8457\u95dc\u9375\u4f5c\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9632\u706b\u7246\u5982\u4f55\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\uff0c\u7279\u5225\u662f\u95dc\u6ce8\u6280\u8853\u611b […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":13493,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[2355,2357,2356,852],"class_list":["post-13496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-tc","tag-firewalls-tc","tag-cyber-attacks-tc","tag-network-servers-tc","tag-server-security-tc"],"acf":[],"yoast_head":"\n\u9632\u706b\u7246\u5982\u4f55\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u653b\u64ca\uff1f<\/title>\n<meta name=\"description\" content=\"\u4e86\u89e3\u9632\u706b\u7246\u5982\u4f55\u900f\u904e\u8a73\u7d30\u904e\u7a0b\u548c\u7a0b\u5f0f\u78bc\u7bc4\u4f8b\u4fdd\u8b77\u7db2\u8def\u4f3a\u670d\u5668\u514d\u53d7\u5404\u7a2e\u7db2\u8def\u653b\u64ca\uff0c\u9069\u5408\u6280\u8853\u611b\u597d\u8005\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, 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