{"id":38,"date":"2009-01-09T18:18:39","date_gmt":"2009-01-09T16:18:39","guid":{"rendered":"http:\/\/avz.org.ua\/wp\/?p=38"},"modified":"2011-03-27T23:37:01","modified_gmt":"2011-03-27T20:37:01","slug":"linux-nat","status":"publish","type":"post","link":"https:\/\/avz.org.ua\/wp\/2009\/01\/09\/linux-nat\/","title":{"rendered":"NAT \u0432 linux"},"content":{"rendered":"<p>\u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435: \u0435\u0441\u0442\u044c \u0440\u043e\u0443\u0442\u0435\u0440 \u0441 \u0434\u0432\u0443\u043c\u044f \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430\u043c\u0438 - eth0 (\u0432\u043d\u0435\u0448\u043d\u0438\u0439) \u0438 eth1 (\u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439). \u041d\u0430 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u043c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0435 \u043f\u0440\u0438\u0431\u0438\u0442 ip-\u0430\u0434\u0440\u0435\u0441 192.168.0.1\/24. \u0414\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c NAT (network address translation) \u0432 \u0435\u0433\u043e \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u043e\u043c \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043c\u0430\u0441\u043a\u0430\u0440\u0434\u0438\u043d\u0433 (\u0432\u0441\u0442\u0440\u0435\u0447\u0430\u0435\u0442\u0441\u044f \u0442\u0430\u0436\u0435 \u0442\u0435\u0440\u043c\u0438\u043d \"\u043c\u0430\u0441\u043a\u0430\u0440\u0430\u0434\") \u043d\u0443\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435:<\/p>\n<pre lang=\"bash\">\r\necho 1 > \/proc\/sys\/net\/ipv4\/ip_forward\r\niptables -t nat -A POSTROUTING -o eth0 -s 192.168.0.0\/24 -j MASQUERADE\r\niptables -I FORWARD -d 192.168.0.0\/24 -j ACCEPT\r\niptables -I FORWARD -s 192.168.0.0\/24 -j ACCEPT\r\n<\/pre>\n<p>\u0427\u0442\u043e\u0431\u044b \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u0438\u0437 \u043f.1 \u043d\u0435 \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e\u0441\u044c \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u043a\u0430\u0436\u0434\u044b\u0439 \u0440\u0430\u0437 \u043f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0440\u043e\u0443\u0442\u0435\u0440\u0430, \u043d\u0443\u0436\u043d\u043e \u043f\u043e\u043f\u0440\u0430\u0432\u0438\u0442\u044c \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u043e\u043f\u0446\u0438\u044e \u0432 \/etc\/sysctl.conf<\/p>\n<p>\u0415\u0441\u043b\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u043f\u043e\u0441\u0442\u0440\u043e\u0438\u0442\u044c NAT \u0432 \u0434\u0440\u0443\u0433\u0443\u044e \u0441\u0442\u043e\u0440\u043e\u043d\u0443, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0439 \u0442\u0430\u043a\u0436\u0435 \u043a\u0430\u043a DNAT, \u0442\u043e \u044d\u0442\u043e \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u0442\u0430\u043a:<\/p>\n<pre lang=\"bash\">\r\niptables -t nat -A PREROUTING -p tcp -d 195.5.5.1 \u2013dport 8182 -j DNAT \u2013-to-destination 10.10.10.18:80\r\n<\/pre>\n<p>\u0417\u0434\u0435\u0441\u044c 195.5.5.1 &ndash; \u0432\u043d\u0435\u0448\u043d\u0438\u0439 ip-\u0430\u0434\u0440\u0435\u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430, \u043f\u043e\u043f\u044b\u0442\u043a\u0438 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043d\u0430 195.5.5.1 tcp-\u043f\u043e\u0440\u0442 8182 \u0431\u0443\u0434\u0443\u0442 \u043f\u0435\u0440\u0435\u043d\u0430\u043f\u0440\u044f\u0432\u043b\u044f\u0442\u044c\u0441\u044f \u043d\u0430 \u043c\u0430\u0448\u0438\u043d\u0443 \u0432\u043e \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u0439 \u0441\u0435\u0442\u0438 \u0441 ip-\u0430\u0434\u0440\u0435\u0441\u043e\u043c 10.10.10.18 \u043d\u0430 \u043f\u043e\u0440\u0442 80. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c 10.10.10.18 \u0434\u043e\u043b\u0436\u0435\u043d \u0431\u044b\u0442\u044c directly-connected \u0434\u043b\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u0430 (\u0442\u043e \u0435\u0441\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u043c \u0434\u043b\u044f \u043d\u0430\u0448\u0435\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0441 DNAT-\u043e\u043c \u0431\u0435\u0437 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u043e\u043c\u0435\u0436\u0443\u0442\u043e\u0447\u043d\u044b\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432). \u0410 \u0432\u043e\u0442 \u0435\u0441\u043b\u0438 \u044d\u0442\u043e \u0443\u0441\u043b\u043e\u0432\u0438\u0435 \u043d\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442\u0441\u044f, \u043f\u0440\u043e\u0431\u0440\u043e\u0441 \u043f\u043e\u0440\u0442\u043e\u0432 \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e <a href=\"\/wp\/2011\/03\/27\/xinetd-port-redirection\/\">xinetd<\/a>.<\/p>\n<p>\u0415\u0441\u043b\u0438 \u043a\u0430\u043a\u0430\u044f-\u0442\u043e \u043c\u0430\u0448\u0438\u043d\u043a\u0430 \u0437\u0430 NAT-\u043e\u043c \u0438\u0441\u043f\u044b\u0442\u044b\u0432\u0430\u0435\u0442 \u0442\u0440\u0443\u0434\u043d\u043e\u0441\u0442\u0438 \u0441 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435\u043c \u043a \u0432\u043d\u0435\u0448\u043d\u0435\u043c\u0443 VPN-\u0441\u0435\u0440\u0432\u0435\u0440\u0443 \u0438 \u0432\u0438\u043d\u0434\u0430 \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u043e\u0448\u0438\u0431\u043a\u0443 \u2116619, \u0442\u043e \u0441\u0442\u043e\u0438\u0442 \u043f\u043e\u043f\u0440\u043e\u0431\u043e\u0432\u0430\u0442\u044c \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c \u043c\u043e\u0434\u0443\u043b\u044c \u044f\u0434\u0440\u0430 ip_nat_pptp \u043d\u0430 linux-\u0440\u043e\u0443\u0442\u0435\u0440\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0441\u043f\u043e\u043b\u043d\u044f\u0435\u0442 NAT:<\/p>\n<pre lang=\"bash\">\r\nmodprobe ip_nat_pptp\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435: \u0435\u0441\u0442\u044c \u0440\u043e\u0443\u0442\u0435\u0440 \u0441 \u0434\u0432\u0443\u043c\u044f \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u043c\u0438 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430\u043c\u0438 - eth0 (\u0432\u043d\u0435\u0448\u043d\u0438\u0439) \u0438 eth1 (\u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439). \u041d\u0430 \u0432\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0435\u043c \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0435 \u043f\u0440\u0438\u0431\u0438\u0442 ip-\u0430\u0434\u0440\u0435\u0441 192.168.0.1\/24. \u0414\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u044c NAT (network address translation) \u0432 \u0435\u0433\u043e \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u043d\u043e\u043c \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043c\u0430\u0441\u043a\u0430\u0440\u0434\u0438\u043d\u0433 (\u0432\u0441\u0442\u0440\u0435\u0447\u0430\u0435\u0442\u0441\u044f \u0442\u0430\u0436\u0435 \u0442\u0435\u0440\u043c\u0438\u043d \"\u043c\u0430\u0441\u043a\u0430\u0440\u0430\u0434\") \u043d\u0443\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0435: echo 1 > \/proc\/sys\/net\/ipv4\/ip_forward iptables -t nat -A POSTROUTING -o eth0 -s 192.168.0.0\/24 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,21],"tags":[14,13,92,94],"class_list":["post-38","post","type-post","status-publish","format-standard","hentry","category-nix","category-tips-and-tricks","tag-linux","tag-nat","tag-xinetd","tag-port-forwarding"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.9 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 firewall-\u0430 Linux \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b NAT\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<meta name=\"author\" content=\"Admin\"\/>\n\t<meta name=\"keywords\" content=\"nat,\u043d\u0430\u0442,\u043f\u0440\u043e\u0431\u0440\u043e\u0441 \u043f\u043e\u0440\u0442\u0430,pat,\u0442\u0440\u0430\u043d\u0441\u043b\u044f\u0446\u0438\u044f \u0430\u0434\u0440\u0435\u0441\u043e\u0432,xinetd,\u043c\u0430\u0441\u043a\u0430\u0440\u0434\u0438\u043d\u0433,\u043c\u0430\u0441\u043a\u0430\u0440\u0430\u0434,linux,\u043f\u0440\u043e\u0431\u0440\u043e\u0441 \u043f\u043e\u0440\u0442\u0456\u0432,*nix,howto\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/avz.org.ua\/wp\/2009\/01\/09\/linux-nat\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.9\" \/>\n\t\t<meta property=\"og:locale\" content=\"uk_UA\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u0411\u043b\u043e\u0433 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u0434\u043c\u0456\u043d\u0456\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 | \u041d\u043e\u0442\u0430\u0442\u043a\u0438 \u043f\u0440\u043e Linux \u0442\u0430 \u043a\u043e\u0440\u0438\u0441\u043d\u0456 \u043f\u043e\u0440\u0430\u0434\u0438 \u0434\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u0438\u0445 \u0430\u0434\u043c\u0456\u043d\u0456\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0456\u0432\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\u0421\u0442\u0440\u043e\u0438\u043c NAT \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438 iptables | \u0411\u043b\u043e\u0433 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u0434\u043c\u0456\u043d\u0456\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 firewall-\u0430 Linux \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b NAT\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/avz.org.ua\/wp\/2009\/01\/09\/linux-nat\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2009-01-09T16:18:39+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2011-03-27T20:37:01+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"\u0421\u0442\u0440\u043e\u0438\u043c NAT \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438 iptables | \u0411\u043b\u043e\u0433 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0433\u043e \u0430\u0434\u043c\u0456\u043d\u0456\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430\" \/>\n\t\t<meta name=\"twitter:description\" content=\"\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 firewall-\u0430 Linux \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b NAT\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/avz.org.ua\\\/wp\\\/2009\\\/01\\\/09\\\/linux-nat\\\/#article\",\"name\":\"\\u0421\\u0442\\u0440\\u043e\\u0438\\u043c NAT \\u0441\\u0440\\u0435\\u0434\\u0441\\u0442\\u0432\\u0430\\u043c\\u0438 iptables | \\u0411\\u043b\\u043e\\u0433 \\u0441\\u0438\\u0441\\u0442\\u0435\\u043c\\u043d\\u043e\\u0433\\u043e \\u0430\\u0434\\u043c\\u0456\\u043d\\u0456\\u0441\\u0442\\u0440\\u0430\\u0442\\u043e\\u0440\\u0430\",\"headline\":\"NAT \\u0432 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