{"id":61713,"date":"2025-04-29T10:39:55","date_gmt":"2025-04-29T02:39:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/61713\/"},"modified":"2025-04-29T10:39:55","modified_gmt":"2025-04-29T02:39:55","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8linux%e4%b8%8a%e8%ae%be%e7%bd%ae%e9%ab%98%e5%8f%af%e7%94%a8%e7%9a%84%e7%bd%91%e7%bb%9c%e8%ae%bf%e9%97%ae%e6%8e%a7%e5%88%b6-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/61713\/","title":{"rendered":"\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236"},"content":{"rendered":"

\u5982\u4f55\u5728linux\u4e0a\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236<\/p>\n

\u6458\u8981\uff1a
\u5728\u7f51\u7edc\u5b89\u5168\u4e2d\uff0c\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u662f\u4e00\u9879\u5173\u952e\u4efb\u52a1\u3002\u4e3a\u4e86\u4fdd\u62a4\u7f51\u7edc\u5b89\u5168\uff0c\u6211\u4eec\u9700\u8981\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\uff0c\u5e76\u63d0\u4f9b\u76f8\u5173\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u5f15\u8a00\uff1a
\u968f\u7740\u7f51\u7edc\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u53d8\u5f97\u65e5\u76ca\u91cd\u8981\u3002\u4fdd\u8bc1\u7f51\u7edc\u5b89\u5168\u7684\u4e00\u4e2a\u5173\u952e\u65b9\u9762\u662f\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u662f\u6307\u901a\u8fc7\u9650\u5236\u548c\u6388\u6743\u7279\u5b9a\u7528\u6237\u6216\u7cfb\u7edf\u5bf9\u7f51\u7edc\u8d44\u6e90\u7684\u8bbf\u95ee\u6765\u4fdd\u62a4\u7f51\u7edc\u5b89\u5168\u3002\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5de5\u5177\u548c\u6280\u672f\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002<\/p>\n

\u4e00\u3001\u4f7f\u7528iptables\u8fdb\u884c\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236
iptables\u662f\u4e00\u4e2a\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7528\u4e8e\u914d\u7f6e\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u89c4\u5219\u7684\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528iptables\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528iptables\u8bbe\u7f6e\u8bbf\u95ee\u63a7\u5236\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

# \u6e05\u9664\u5df2\u6709\u7684\u89c4\u5219\u548c\u8bbe\u7f6e\u9ed8\u8ba4\u7b56\u7565\niptables -F\niptables -X\niptables -Z\niptables -P INPUT DROP\niptables -P OUTPUT ACCEPT\niptables -P FORWARD DROP\n\n# \u5141\u8bb8\u672c\u673a\u8bbf\u95ee\niptables -A INPUT -i lo -j ACCEPT\n\n# \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u8bbf\u95ee\niptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT\n\n# \u5f00\u653e\u6307\u5b9a\u7aef\u53e3\niptables -A INPUT -p tcp --dport 22 -j ACCEPT\niptables -A INPUT -p tcp --dport 80 -j ACCEPT\n\n# \u5141\u8bb8ICMP\u534f\u8bae\niptables -A INPUT -p icmp -j ACCEPT\n\n# \u5141\u8bb8\u7279\u5b9a\u7684IP\u8bbf\u95ee\niptables -A INPUT -s 192.168.1.100 -j ACCEPT\n\n# \u963b\u6b62\u5176\u5b83\u6240\u6709\u8bbf\u95ee\niptables -A INPUT -j REJECT<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u6e05\u9664\u5df2\u6709\u7684\u89c4\u5219\u548c\u8bbe\u7f6e\u9ed8\u8ba4\u7b56\u7565\u3002\u7136\u540e\uff0c\u6211\u4eec\u5141\u8bb8\u672c\u673a\u8bbf\u95ee\u548c\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u8bbf\u95ee\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5f00\u653e\u4e86SSH\uff08\u7aef\u53e322\uff09\u548cHTTP\uff08\u7aef\u53e380\uff09\u7684\u8bbf\u95ee\u6743\u9650\u3002\u6211\u4eec\u8fd8\u5141\u8bb8ICMP\u534f\u8bae\u7684\u901a\u4fe1\uff0c\u5e76\u4e14\u5141\u8bb8\u7279\u5b9a\u7684IP\u5730\u5740\u8fdb\u884c\u8bbf\u95ee\u3002\u6700\u540e\uff0c\u6211\u4eec\u963b\u6b62\u4e86\u5176\u5b83\u6240\u6709\u7684\u8bbf\u95ee\u3002<\/p>\n
\u4e8c\u3001\u4f7f\u7528SELinux\u8fdb\u884c\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236
SELinux\uff08Security-Enhanced Linux\uff09\u662f\u4e00\u4e2a\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u63d0\u4f9b\u5f3a\u5236\u8bbf\u95ee\u63a7\u5236\u7684\u5b89\u5168\u5b50\u7cfb\u7edf\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528SELinux\u6765\u8fdb\u4e00\u6b65\u52a0\u5f3a\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528SELinux\u8bbe\u7f6e\u8bbf\u95ee\u63a7\u5236\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
# \u5141\u8bb8httpd\u8fdb\u7a0b\u8bbf\u95ee\u7f51\u7edc\nsetsebool -P httpd_can_network_connect on\n\n# \u5141\u8bb8squid\u8fdb\u7a0b\u8bbf\u95ee\u7f51\u7edc\nsetsebool -P squid_connect_any on<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528setsebool\u547d\u4ee4\u8bbe\u7f6ehttpd\u8fdb\u7a0b\u548csquid\u8fdb\u7a0b\u7684\u8bbf\u95ee\u6743\u9650\u3002\u901a\u8fc7\u8bbe\u7f6e\u76f8\u5e94\u7684\u5e03\u5c14\u503c\u4e3aon\uff0c\u6211\u4eec\u5141\u8bb8\u8fd9\u4e9b\u8fdb\u7a0b\u8bbf\u95ee\u7f51\u7edc\u3002<\/p>\n
\u7ed3\u8bba\uff1a
\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u5728\u7f51\u7edc\u5b89\u5168\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528iptables\u548cSELinux\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u672c\u6587\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\uff0c\u5e0c\u671b\u80fd\u5bf9\u8bfb\u8005\u5728\u8bbe\u7f6e\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u65b9\u9762\u63d0\u4f9b\u4e00\u4e9b\u5e2e\u52a9\u3002\u4e3a\u4fdd\u62a4\u7f51\u7edc\u5b89\u5168\uff0c\u6211\u4eec\u5e94\u5f53\u4e0d\u65ad\u7814\u7a76\u548c\u66f4\u65b0\u76f8\u5173\u7684\u6280\u672f\u548c\u5de5\u5177\uff0c\u4ee5\u5e94\u5bf9\u4e0d\u65ad\u53d8\u5316\u7684\u7f51\u7edc\u5a01\u80c1\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u5728Linux\u4e0a\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8FDCServers\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u5728linux\u4e0a\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236 \u6458\u8981\uff1a\u5728\u7f51\u7edc\u5b89\u5168\u4e2d\uff0c\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u662f\u4e00\u9879\u5173\u952e\u4efb\u52a1\u3002\u4e3a\u4e86\u4fdd\u62a4\u7f51\u7edc\u5b89\u5168\uff0c\u6211\u4eec\u9700\u8981\u8bbe\u7f6e\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\uff0c\u5e76\u63d0\u4f9b\u76f8\u5173\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u5f15\u8a00\uff1a\u968f\u7740\u7f51\u7edc\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u7f51\u7edc\u5b89\u5168\u95ee\u9898\u53d8\u5f97\u65e5\u76ca\u91cd\u8981\u3002\u4fdd\u8bc1\u7f51\u7edc\u5b89\u5168\u7684\u4e00\u4e2a\u5173\u952e\u65b9\u9762\u662f\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u662f\u6307\u901a\u8fc7\u9650\u5236\u548c\u6388\u6743\u7279\u5b9a\u7528\u6237\u6216\u7cfb\u7edf\u5bf9\u7f51\u7edc\u8d44\u6e90\u7684\u8bbf\u95ee\u6765\u4fdd\u62a4\u7f51\u7edc\u5b89\u5168\u3002\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5de5\u5177\u548c\u6280\u672f\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002 \u4e00\u3001\u4f7f\u7528iptables\u8fdb\u884c\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236iptables\u662f\u4e00\u4e2a\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7528\u4e8e\u914d\u7f6e\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u89c4\u5219\u7684\u5de5\u5177\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528iptables\u6765\u5b9e\u73b0\u9ad8\u53ef\u7528\u7684\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528iptables\u8bbe\u7f6e\u8bbf\u95ee\u63a7\u5236\u89c4\u5219\u7684\u793a\u4f8b\u4ee3\u7801\uff1a # \u6e05\u9664\u5df2\u6709\u7684\u89c4\u5219\u548c\u8bbe\u7f6e\u9ed8\u8ba4\u7b56\u7565 iptables -F iptables -X iptables -Z iptables -P INPUT DROP iptables -P OUTPUT ACCEPT iptables -P FORWARD DROP # \u5141\u8bb8\u672c\u673a\u8bbf\u95ee iptables -A INPUT -i lo -j ACCEPT # \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5\u8bbf\u95ee iptables -A INPUT -m state –state RELATED,ESTABLISHED -j ACCEPT # \u5f00\u653e\u6307\u5b9a\u7aef\u53e3 iptables -A INPUT -p tcp –dport 22 -j ACCEPT […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-61713","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=61713"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/61713\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=61713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=61713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=61713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}