{"id":866,"date":"2011-03-01T14:48:38","date_gmt":"2011-03-01T12:48:38","guid":{"rendered":"http:\/\/skeletor.org.ua\/?p=866"},"modified":"2023-07-19T13:14:41","modified_gmt":"2023-07-19T10:14:41","slug":"iptables-%d0%b8-%d0%bb%d0%be%d0%b3%d0%b3%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d0%b5-%d0%bf%d1%80%d0%b0%d0%b2%d0%b8%d0%bb","status":"publish","type":"post","link":"https:\/\/skeletor.org.ua\/?p=866","title":{"rendered":"iptables \u0438 \u043b\u043e\u0433\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0430\u0432\u0438\u043b"},"content":{"rendered":"

\u0414\u0435\u043b\u043e \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0430\u0432\u0438\u043b \u043d\u0435 \u043b\u043e\u0433\u0433\u0438\u0440\u0443\u0435\u0442\u0441\u044f (\u043e\u043d\u043e-\u0442\u043e \u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e). \u041d\u043e \u0447\u0430\u0441\u0442\u043e \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u0435\u0442 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0437\u043d\u0430\u0442\u044c \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0441 \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 \u0438 \u043d\u0430 \u043a\u0430\u043a\u043e\u043c \u043f\u0440\u0430\u0432\u0438\u043b\u0435 \u043e\u043d\u0438 \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0442. \u0414\u043b\u044f \u044d\u0442\u0438\u0445 \u0446\u0435\u043b\u0435\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0442\u0430\u043a\u0443\u044e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e:<\/p>\n

<\/p>\n

– \u043b\u043e\u0433\u0433\u0438\u0440\u0443\u0435\u043c \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043a\u0430\u0436\u0434\u0443\u044e \u0446\u0435\u043f\u043e\u0447\u043a\u0443:<\/strong><\/p>\n

#iptables -A INPUT -j LOG --log-level 6 --log-prefix \"fp=INPUT a=DROP \"
\n#iptables -A FORWARD -j LOG --log-level 6 --log-prefix \"fp=FORWARD a=DROP \"
\n#iptables -A OUTPUT -j LOG --log-level 6 --log-prefix \"fp=OUTPUT a=DROP \"<\/code><\/p>\n

\u043f\u0440\u0438\u0447\u0451\u043c \u043b\u043e\u0433\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0437\u0430\u0442\u0440\u043e\u043d\u0435\u0442 \u0432\u0441\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430, \u043d\u0430\u0445\u043e\u0434\u044f\u0449\u0438\u0435\u0441\u044f \u043d\u0438\u0436\u0435 \u0432\u044b\u0448\u0435\u043e\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0445. \u0422\u043e \u0435\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u043c\u0435\u0449\u0430\u044f \u0432\u0432\u0435\u0440\u0445\/\u0432\u043d\u0438\u0437 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u043b\u043e\u0433\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043b\u043e\u0433\u0433\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043d\u0443\u0436\u043d\u044b\u0435 \u0431\u043b\u043e\u043a\u0438 \u043f\u0440\u0430\u0432\u0438\u043b.<\/p>\n

– \u043b\u043e\u0433\u0433\u0438\u0440\u0443\u0435\u043c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u043e:<\/strong><\/p>\n

#iptables -A bad_tcp_packets -p tcp -m tcp --tcp-flags FIN,SYN,RST,PSH,ACK,URG NONE -j LOG --log-level 6 --log-prefix \"fp=bad_tcp_packets:2 a=DROP \"<\/code><\/p>\n

\u041f\u043e\u0441\u043b\u0435 \u044d\u0442\u043e\u0433\u043e, \u043b\u043e\u0433\u0438 \u0431\u0443\u0434\u0443\u0442 \u043f\u0438\u0441\u0430\u0442\u044c\u0441\u044f \u0432 \u0444\u0430\u0439\u043b \/var\/log\/syslog<\/strong><\/p>\n

– iptables-tracer<\/a><\/p>\n

\n
\n
\n
\n

\u0421 \u043f\u043e\u043c\u043e\u0449\u044c\u044e iptables-tracer<\/strong> \u043c\u043e\u0436\u043d\u043e \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c, \u043f\u0440\u043e\u0445\u043e\u0434\u0438\u0442 \u043b\u0438 \u0442\u0440\u0430\u0444\u0438\u043a \u0447\u0435\u0440\u0435\u0437 \u043d\u0443\u0436\u043d\u044b\u0435 \u043d\u0430\u043c \u0446\u0435\u043f\u043e\u0447\u043a\u0438 iptables<\/strong>. \u0414\u0435\u043b\u0430\u0435\u0442 \u043e\u043d \u044d\u0442\u043e, \u0432\u0441\u0442\u0430\u0432\u043b\u044f\u044f \u0432 \u043a\u0430\u0436\u0434\u0443\u044e \u0446\u0435\u043f\u043e\u0447\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430-\u043c\u0430\u0440\u043a\u0435\u0440\u044b (-j NFLOG<\/strong>), \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0431\u0443\u0434\u0443\u0442 \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u043f\u0440\u0438 \u043f\u0440\u043e\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u0438 \u043f\u0430\u043a\u0435\u0442\u0430 \u0447\u0435\u0440\u0435\u0437 \u0446\u0435\u043f\u043e\u0447\u043a\u0443. \u0412\u0430\u0436\u043d\u043e \u043f\u043e\u043c\u043d\u0438\u0442\u044c, \u0447\u0442\u043e \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u0442\u0440\u0430\u0441\u0441\u0438\u0440\u043e\u0432\u043a\u0438 \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0435 \u0432 iptables <\/strong><\/span>\u0441\u043b\u0443\u0436\u0435\u0431\u043d\u044b\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u043d\u0435 \u0443\u0434\u0430\u043b\u044f\u044e\u0442\u0441\u044f, \u0442\u0430\u043a \u0447\u0442\u043e \u043f\u043e\u0442\u043e\u043c \u0438\u0445 \u043d\u0443\u0436\u043d\u043e \u0443\u0434\u0430\u043b\u0438\u0442\u044c \u0442\u0430\u043a\u043e\u0439 \u043a\u043e\u043c\u0430\u043d\u0434\u043e\u0439:<\/span><\/p>\n

\n
\n
\n
\n

.\/iptables-tracer -c<\/code><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

\u0414\u0435\u043b\u043e \u0432 \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0430\u0432\u0438\u043b \u043d\u0435 \u043b\u043e\u0433\u0433\u0438\u0440\u0443\u0435\u0442\u0441\u044f (\u043e\u043d\u043e-\u0442\u043e \u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e). \u041d\u043e \u0447\u0430\u0441\u0442\u043e \u0432\u043e\u0437\u043d\u0438\u043a\u0430\u0435\u0442 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0437\u043d\u0430\u0442\u044c \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0441 \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 \u0438 \u043d\u0430 \u043a\u0430\u043a\u043e\u043c \u043f\u0440\u0430\u0432\u0438\u043b\u0435 \u043e\u043d\u0438 \u0441\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u044e\u0442. \u0414\u043b\u044f \u044d\u0442\u0438\u0445 \u0446\u0435\u043b\u0435\u0439 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0442\u0430\u043a\u0443\u044e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044e:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,10,13],"tags":[],"class_list":["post-866","post","type-post","status-publish","format-standard","hentry","category-linux","category-others","category-security"],"_links":{"self":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=866"}],"version-history":[{"count":11,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/866\/revisions"}],"predecessor-version":[{"id":6212,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/866\/revisions\/6212"}],"wp:attachment":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}