permalink: "/{{ year }}/{{ month }}/{{ day }}/using-ipvwith-inetd" title: using ipv6 with inetd published_date: "2011-10-18 10:58:00 +0200" layout: post.liquid data: route: blog --- I am the administrator of the [ctdo][] own jabber server over at `jabber.ctdo.de`. It is currently running on the old but working [jabberd][] and also hosts a [bitlbee] server on several ports including ssl-protected ones. Now that the world is migrating to IPv6 I wanted to make every single service on this machine available on IPv6, too. Not that easy for old, never-really-updated software. Complete taking down the machine and reinstalling everything was not an option, so I just updated jabberd to the latest version (back in spring). By default the jabber server listens on all IPv6 addresses of the host machine, so all I needed to do here was enabling ssl-serving over IPv6 for it: 2001:0db8:85a3:08d3:1319:8a2e:0370:7344 {:lang="text"} (this is a completeley random ipv6 addresses ;) Now to the "hard" part: the bitlbee thing. As bitlbee does not speak ssl itself, it makes use of [stunnel][], a small SSL tunneling proxy. Now stunnel and bitlbee are not just started on boot, but handled by [inetd][], a super-server daemon listening on ports and starting associated programs on need. But, as I told before, the server is a rather old installation and uses `netkit-inetd`, which, as to my testings, does not work over IPv6. So I had to replace this one: apt-get install netbsd-inetd {:lang="text"} One line in `/etc/inetd.conf` reads as the following: 9999 stream tcp nowait bitlbee /usr/bin/stunnel stunnel -v 0 -l /usr/sbin/bitlbee {:lang="text"} This needs to be duplicated and changed to listen on v6, too. 9999 stream tcp6 nowait bitlbee /usr/bin/stunnel stunnel -v 0 -l /usr/sbin/bitlbee {:lang="text"} And that's it. /etc/init.d/netbsd-inetd start /etc/init.d/jabberd14 restart {:lang="text"} and you should be ready to go. This is live right now on `jabber.ctdo.de`. [ctdo]: http://ctdo.de/ [jabberd]: http://jabberd.org/ [bitlbee]: http://www.bitlbee.org/main.php/news.r.html [stunnel]: http://www.stunnel.org/ [inetd]: http://en.wikipedia.org/wiki/Inetd