{"id":13382,"date":"2022-08-30T22:09:12","date_gmt":"2022-08-30T14:09:12","guid":{"rendered":"https:\/\/ailog.tw\/lifelog\/?p=13382"},"modified":"2022-08-30T22:09:12","modified_gmt":"2022-08-30T14:09:12","slug":"ol8-iptables","status":"publish","type":"post","link":"https:\/\/ailog.tw\/lifelog\/2022\/08\/30\/ol8-iptables\/","title":{"rendered":"CentOS 8\/Oracle Linux 8\u4f7f\u7528iptables\u9632\u706b\u7246"},"content":{"rendered":"

\u5c0f\u7de8\u5728Linux\u7cfb\u7d71\u4f7f\u7528iptables\u5df2\u7d93\u5f88\u591a\u5e74\u4e86\uff0c\u4f46\u65b0\u7248\u7684Linux\u9810\u8a2d\u662f\u63a1\u7528firewalld\uff0c\u96e3\u514d\u9084\u662f\u6709\u4e9b\u4e0d\u7fd2\u6163\uff0c\u5982\u679c\u4f60\u8ddf\u5c0f\u7de8\u4e00\u6a23\u662f\u61f7\u820a\u7684\u4eba\uff0c\u90a3\u5c31\u4e0d\u53ef\u932f\u904e\u9019\u4e00\u7bc7\u5728\u65b0\u7248Linux\u555f\u7528iptables\u7684\u6587\u7ae0\u3002<\/span><\/p>\n

Set01\u3001\u505c\u7528firewalld\u670d\u52d9<\/strong><\/span>
\n\u8a9e\u6cd5\uff1a<\/span>
\nsystemctl stop firewalld
\n\"\"<\/span><\/p>\n

Set02\u3001\u95dc\u9589firewalld\u670d\u52d9<\/strong>
\n\u8a9e\u6cd5\uff1a
\nsystemctl mask firewalld
\n\"\"<\/span><\/p>\n

Set03\u3001\u5b89\u88ddiptables\u5957\u4ef6<\/strong>
\n\u8a9e\u6cd5\uff1a
\nyum install -y iptables
\n\"\"
\n<\/span><\/p>\n

Set04\u3001\u66f4\u65b0iptables\u5957\u4ef6<\/strong>
\n\u8a9e\u6cd5\uff1a
\nyum update iptables
\n\"\"<\/span><\/p>\n

Set05\u3001\u5b89\u88ddiptables\u670d\u52d9\u5957\u4ef6<\/strong>
\n\u8a9e\u6cd5\uff1a
\nyum install -y iptables-services
\n\"\"<\/span><\/p>\n

Set06\u3001\u8a2d\u5b9a\u958b\u6a5f\u555f\u52d5iptables\u670d\u52d9<\/strong>
\n\u8a9e\u6cd5\uff1a
\nsystemctl enable iptables.service
\n\"\"<\/span><\/p>\n

Set07\u3001\u6aa2\u67e5iptables\u72c0\u614b<\/strong><\/span>
\n\u8a9e\u6cd5\uff1a
\nservice iptables status
\n\"\"
\n<\/span><\/p>\n

Set08\u3001\u8a2d\u5b9a\u9810\u8a2d\u898f\u5247<\/strong><\/span>
\n\u8a9e\u6cd5\uff1a<\/span>
\niptables -p input accept<\/span>
\niptables -p output accept<\/span>
\niptables -p forward accept
\n\"\"
\n\u203b\u6ce8\u610f\u8a9e\u6cd5\u7684\u5927\u5c0f\u5beb<\/span><\/span><\/p>\n

Set09\u3001\u6e05\u9664\u9632\u706b\u7246\u76f8\u95dc\u898f\u5247<\/strong><\/span>
\n(1)\u3001\u6e05\u9664\u9632\u706b\u7246\u898f\u5247
\n\u8a9e\u6cd5\uff1a<\/span>
\niptables -F<\/span>
\niptables -X
\n\"\"<\/span><\/p>\n

(2)\u3001\u6e05\u9664mangle\u898f\u5247
\n\u8a9e\u6cd5\uff1a
\niptables -F -t mangle
\niptables -t mangle -X
\n\"\"<\/span><\/p>\n

(3)\u3001\u6e05\u9664NAT\u898f\u5247
\n\u8a9e\u6cd5\uff1a
\niptables -F -t nat
\niptables -t nat -X
\n\"\"
\n<\/span><\/p>\n

Set11\u3001\u67e5\u8a62iptables\u76ee\u524d\u898f\u5247<\/strong>
\n\u8a9e\u6cd5\uff1a
\niptables -L -v -n | more
\n\"\"
\n<\/span><\/p>\n

Set10\u3001\u8a2d\u5b9a\u5141\u8a31192.168.8.15\u900f\u904eTCP\u5354\u5b9a\u9023\u5165\u4e3b\u6a5f\uff0c\u5176\u4ed6\u4e3b\u6a5f\u7684TCP\u5354\u5b9a\u62d2\u7d55\u9023\u7dda<\/strong>
\n\u8a9e\u6cd5\uff1a
\niptables -A INPUT -p tcp -s 192.168.8.15 -j ACCEPT
\niptables -A INPUT -p tcp -j DROP
\n\"\"<\/span><\/p>\n

Set10\u3001\u6307\u5b9a\u7db2\u8def\u5361\u8a2d\u5b9a\u9632\u706b\u7246\u898f\u5247
\n\u8a9e\u6cd5\uff1a
\n<\/strong>iptables -A INPUT -i ens224 -p tcp -s 192.168.5.69 -j ACCEPT
\niptables -L -v -n | more
\n\"\"<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u5c0f\u7de8\u5728Linux\u7cfb\u7d71\u4f7f\u7528iptables\u5df2\u7d93\u5f88\u591a\u5e74\u4e86\uff0c\u4f46\u65b0\u7248\u7684Linux\u9810\u8a2d\u662f\u63a1\u7528firewalld\uff0c\u96e3\u514d\u9084\u662f … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008CentOS 8\/Oracle Linux 8\u4f7f\u7528iptables\u9632\u706b\u7246\u3009<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":13399,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,381,385],"tags":[5286,5536,5535,5285,5537],"class_list":["post-13382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-itinfo","category-firewall","category-security","tag-centos-8","tag-firewalld","tag-iptables","tag-oracle-linux-8","tag-5537"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/13382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/comments?post=13382"}],"version-history":[{"count":13,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/13382\/revisions"}],"predecessor-version":[{"id":13411,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/posts\/13382\/revisions\/13411"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/media\/13399"}],"wp:attachment":[{"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/media?parent=13382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/categories?post=13382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ailog.tw\/lifelog\/wp-json\/wp\/v2\/tags?post=13382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}