{"id":225,"date":"2013-10-19T21:18:44","date_gmt":"2013-10-19T19:18:44","guid":{"rendered":"http:\/\/mmed.roulleau.net\/?p=225"},"modified":"2013-10-19T21:18:44","modified_gmt":"2013-10-19T19:18:44","slug":"utiliser-iptables-dans-un-ve-openvz","status":"publish","type":"post","link":"https:\/\/mmed.roulleau.net\/?p=225","title":{"rendered":"Utiliser iptables dans un VE OpenVZ"},"content":{"rendered":"<p>Pour avoir un <strong>iptables<\/strong> avec toutes les options au poil qui fonctionne dans des conteneurs <strong>OpenVZ<\/strong>, j&rsquo;ai du faire quelques modifications \u00e0 l&rsquo;installation de base. Je te les donne, cadeau, cher lecteur :<\/p>\n<h2>Sur la machine h\u00f4te :<\/h2>\n<p>Il faut charger les modules noyaux suivants :<\/p>\n<pre>sudo modprobe ip_conntrack\nsudo modprobe ip_conntrack_ftp\nsudo modprobe xt_state<\/pre>\n<p>Et pour que les modifications soient valables au prochain d\u00e9marrage, il faut \u00e9diter <em>\/etc\/modules<\/em> et rajouter :<\/p>\n<pre>ip_conntrack\nip_conntrack_ftp\nxt_state<\/pre>\n<p>Pour que OpenVZ autorise les VE \u00e0 utiliser les modules iptables qui vont bien, \u00e9diter \/etc\/vz\/vz.conf :<\/p>\n<pre>## IPv4 iptables kernel modules\nIPTABLES=\u201dipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state ipt_conntrack ip_conntrack_ftp iptable_nat ipt_REDIRECT ipt_REJECT\u201d<\/pre>\n<p>&nbsp;<\/p>\n<h2>Dans les VE :<\/h2>\n<p>Editer \/etc\/vz\/conf\/100.conf :<\/p>\n<pre>IPTABLES=\"ipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state ipt_conntrack ip_conntrack_ftp iptable_nat ipt_REDIRECT ipt_REJECT\"<\/pre>\n<p>Ma conclusion : OpenVZ, c&rsquo;est excellent, mais plus je l&rsquo;utilise plus je me rends compte que \u00e7a n\u00e9cessite pas mal de tunning.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pour avoir un iptables avec toutes les options au poil qui fonctionne dans des conteneurs OpenVZ, j&rsquo;ai du faire quelques modifications \u00e0 l&rsquo;installation de base. Je te les donne, cadeau, cher lecteur : Sur la machine h\u00f4te : Il faut charger les modules noyaux suivants : sudo modprobe ip_conntrack sudo modprobe ip_conntrack_ftp sudo modprobe xt_state [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[22,32],"_links":{"self":[{"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=\/wp\/v2\/posts\/225"}],"collection":[{"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=225"}],"version-history":[{"count":0,"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions"}],"wp:attachment":[{"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mmed.roulleau.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}