{"id":141,"date":"2012-05-11T11:42:49","date_gmt":"2012-05-11T10:42:49","guid":{"rendered":"http:\/\/freddy.afers.org\/?p=141"},"modified":"2012-05-11T11:42:49","modified_gmt":"2012-05-11T10:42:49","slug":"linux-als-router","status":"publish","type":"post","link":"https:\/\/freddy.afers.org\/?p=141","title":{"rendered":"Linux als Router"},"content":{"rendered":"<p>Um Linux als Router zu verwenden sind nur wenige Befehle notwendig:<\/p>\n<p>routing einschalten:<\/p>\n<pre class=\"code\">echo 1 &gt; \/proc\/sys\/net\/ipv4\/ip_forward<\/pre>\n<p>nat aktivieren (nicht immer erforderlich):<\/p>\n<pre class=\"code\">iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE<\/pre>\n<p>man k\u00f6nnte logischerweise alles in einem Script einbinden:<\/p>\n<pre class=\"code\">#!\/bin\/sh\nifup eth0\nifup eth0:1\nroute add default gw 10.0.0.254 eth0\n#### f\u00fcr bessere security:\niptables -t nat -P POSTROUTING DROP\n#####\niptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE\necho 1 &gt; \/proc\/sys\/net\/ipv4\/ip_forward\n<\/pre>\n<p>Falls man nicht sicher ist, ob bereits Regeln vorhanden sind (iptables), und diese l\u00f6schen m\u00f6chte, diesen Befehl eingeben:<\/p>\n<p>L\u00f6scht alle Regeln:<\/p>\n<pre class=\"code\">iptables -F (oder iptables --flush)<\/pre>\n<p>L\u00f6scht nur die Regeln der Kette INPUT:<\/p>\n<pre class=\"code\">iptables -F INPUT<\/pre>\n<p>Weitere Links:<br \/>\n<a title=\"http:\/\/www.oreilly.de\/german\/freebooks\/linag2\/netz1103.htm\" href=\"http:\/\/www.oreilly.de\/german\/freebooks\/linag2\/netz1103.htm\" target=\"_blank\">http:\/\/www.oreilly.de\/german\/freebooks\/linag2\/netz1103.htm<\/a><br \/>\n<a title=\"http:\/\/64-bit.de\/dokumentationen\/netzwerk\/e\/002\/DE-IPTABLES-HOWTO-4.html\" href=\"http:\/\/64-bit.de\/dokumentationen\/netzwerk\/e\/002\/DE-IPTABLES-HOWTO-4.html\" target=\"_blank\">http:\/\/64-bit.de\/dokumentationen\/netzwerk\/e\/002\/DE-IPTABLES-HOWTO-4.html<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um Linux als Router zu verwenden sind nur wenige Befehle notwendig: routing einschalten: echo 1 &gt; \/proc\/sys\/net\/ipv4\/ip_forward nat aktivieren (nicht immer erforderlich): iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE man k\u00f6nnte logischerweise alles in einem Script einbinden: #!\/bin\/sh ifup eth0 ifup eth0:1 route add default gw 10.0.0.254 eth0 #### f\u00fcr bessere security: iptables [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-141","post","type-post","status-publish","format-standard","hentry","category-linux","et-bg-layout-dark","et-white-bg"],"_links":{"self":[{"href":"https:\/\/freddy.afers.org\/index.php?rest_route=\/wp\/v2\/posts\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/freddy.afers.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/freddy.afers.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/freddy.afers.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/freddy.afers.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=141"}],"version-history":[{"count":0,"href":"https:\/\/freddy.afers.org\/index.php?rest_route=\/wp\/v2\/posts\/141\/revisions"}],"wp:attachment":[{"href":"https:\/\/freddy.afers.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/freddy.afers.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/freddy.afers.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}