{"id":33,"date":"2024-08-03T20:14:56","date_gmt":"2024-08-03T17:14:56","guid":{"rendered":"https:\/\/casp.ru\/?p=33"},"modified":"2024-08-03T20:30:11","modified_gmt":"2024-08-03T17:30:11","slug":"nat-dnat","status":"publish","type":"post","link":"https:\/\/casp.ru\/?p=33","title":{"rendered":"\u041f\u0440\u043e\u0431\u0440\u043e\u0441 \u043f\u043e\u0440\u0442\u0430 \u043c\u0435\u0436\u0434\u0443 \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u043c\u0438 ip \u0430\u0434\u0440\u0435\u0441\u0430\u043c\u0438 iptables nat + dnat"},"content":{"rendered":"\n\u041f\u043e\u0447\u0442\u0438 \u0432\u0441\u0435\u0433\u0434\u0430 \u0441\u0435\u0440\u0432\u0438\u0441\u044b \u043d\u0443\u0436\u043d\u043e \u043c\u0438\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043c\u0435\u0436\u0434\u0443 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c\u0438 \u0441 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u0430\u0443\u043d\u0442\u0430\u0439\u043c\u043e\u043c.\n\n\u0415\u0441\u043b\u0438 \u0432\u043e\u043f\u0440\u043e\u0441 \u043a\u0430\u0441\u0430\u0435\u0442\u044f \u0432\u0435\u0431 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 &#8212; \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0441\u0442\u0440\u043e\u0438\u0442\u044c \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0435 \u043f\u0440\u043e\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u043d\u043e\u0432\u043e\u0435 \u043c\u0435\u0441\u0442\u043e. \u0415\u0441\u043b\u0438 \u0436\u0435 \u0432\u043e\u0442 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u0430 &#8212; \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f <strong>nat \u0438<\/strong> <strong>dnat <\/strong>\u00a0 \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e \u0437\u0430\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u0442\u044c \u0442\u0440\u0430\u0444\u0438\u043a \u043d\u0430 \u043d\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0435\u0440:\n<pre class=\\\"lang:sh decode:true\\\">ip_old=111.111.111.111\nip_new=222.222.222.222\n\nfor port in 25 110 143 587 993 995; do\n\niptables -t nat -A PREROUTING -p tcp -d $ip_old --dport $port -j DNAT --to-destination $ip_new:$port\niptables -t nat -A POSTROUTING -p tcp -d $ip_new --dport $port -j SNAT --to-source $ip_old\ndone<\/pre>\n\u0422\u0430\u043a\u0430\u044f \u043f\u0440\u043e\u0441\u0442\u0430\u044f \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u044f \u0447\u0430\u0441\u0442\u043e \u0432\u044b\u0440\u0443\u0447\u0430\u0435\u0442.\n\n\u041a\u043e\u043d\u0435\u043d\u0447\u043e, \u043d\u0443\u0436\u043d\u043e \u0442\u0430\u043a \u0436\u0435 \u0443\u0431\u0435\u0434\u0438\u0442\u044c\u0441\u044f \u0447\u0442\u043e \u044d\u0442\u043e\u0442 \u0442\u0440\u0430\u0444\u0438\u043a \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d \u0432 iptables\u00a0<em>FORWARD<\/em> \u0438 \u0432\u043a\u043b\u044e\u0447\u0435\u043d \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u0439 forwarding \u043f\u0430\u043a\u0435\u0442\u043e\u0432:\n\n<em>\u0414\u043b\u044f \u043f\u0440\u0438\u043c\u0435\u0440\u0430:<\/em>\n<pre class=\\\"lang:sh decode:true \\\">sudo iptables -L FORWARD\n\nsysctl net.ipv4.conf.all.forwarding\n<\/pre>\n&nbsp;\n\n&nbsp;\n","protected":false},"excerpt":{"rendered":"<p>\u041f\u043e\u0447\u0442\u0438 \u0432\u0441\u0435\u0433\u0434\u0430 \u0441\u0435\u0440\u0432\u0438\u0441\u044b \u043d\u0443\u0436\u043d\u043e \u043c\u0438\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043c\u0435\u0436\u0434\u0443 \u0441\u0435\u0440\u0432\u0435\u0440\u0430\u043c\u0438 \u0441 \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u044b\u043c \u0434\u0430\u0443\u043d\u0442\u0430\u0439\u043c\u043e\u043c. \u0415\u0441\u043b\u0438 \u0432\u043e\u043f\u0440\u043e\u0441 \u043a\u0430\u0441\u0430\u0435\u0442\u044f \u0432\u0435\u0431 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 &#8212; \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0441\u0442\u0440\u043e\u0438\u0442\u044c \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e\u0435 \u043f\u0440\u043e\u043a\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432 \u043d\u043e\u0432\u043e\u0435 \u043c\u0435\u0441\u0442\u043e. \u0415\u0441\u043b\u0438 \u0436\u0435 \u0432\u043e\u0442 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u0430 &#8212; \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f nat \u0438 dnat \u00a0 \u043f\u0440\u043e\u0437\u0440\u0430\u0447\u043d\u043e \u0437\u0430\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u0442\u044c \u0442\u0440\u0430\u0444\u0438\u043a \u043d\u0430 \u043d\u043e\u0432\u044b\u0439 \u0441\u0435\u0440\u0432\u0435\u0440: ip_old=111.111.111.111<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33","post","type-post","status-publish","format-standard","hentry","category-1","entry"],"_links":{"self":[{"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/posts\/33","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/casp.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=33"}],"version-history":[{"count":2,"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/posts\/33\/revisions"}],"predecessor-version":[{"id":39,"href":"https:\/\/casp.ru\/index.php?rest_route=\/wp\/v2\/posts\/33\/revisions\/39"}],"wp:attachment":[{"href":"https:\/\/casp.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=33"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casp.ru\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casp.ru\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}