Package: ejabberd Version: 2.0.1-6+lenny1 Severity: normal I recently upgraded our server hardware and started afresh with networking and the lot. The previous box although IPv6 capable, it was pretty focused around just IPv4, this box I get a clean slate with.
My /etc/resolv.conf file used to look like: ---- domain wormnet.eu search wormnet.eu nameserver ::1 ---- Migrating from our old ejabberd server to the same version on the new hardware we found most s2s connections, particularly the gBorg ones, were uncontactable. We thought it could be DNS propagation issues, as we slightly borked that up originally, but noticed that the s2s connections to some of the minor Jabber servers (@jabber.earth.li for example) were working fine. I cracked out the packet sniffer and saw TCP SYN packets going our to port 5269 but no replying SYN/ACK's. Strange I thought, then after I while, once I looked at the DNS lookups being made too, I saw that no SRV records were being looked up and it was just making raw A record lookups to make the s2s connection. Eeek. The A record results for gmail.com are very different to the SRV records you get for _xmpp-server._tcp.gmail.com. The 5269/tcp packets were going to the wrong place. This explains why for the smaller Jabber installations it just worked as it so happened that the SRV records come back with identical results to the raw A record lookup. As a result my resolv.conf file now looks like: ---- domain wormnet.eu search wormnet.eu nameserver 127.0.0.1 #nameserver ::1 ---- This fixes the problem, but makes for an IPv6 bug in ejabberd (or possibly even erlang?). Cheers -- System Information: Debian Release: 5.0.2 APT prefers stable APT policy: (500, 'stable') Architecture: sparc (sparc64) Kernel: Linux 2.6.26-2-sparc64-smp (SMP w/1 CPU core) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages ejabberd depends on: ii adduser 3.110 add and remove users and groups ii debconf [debconf-2.0] 1.5.24 Debian configuration management sy ii erlang-base [erlang-ab 1:12.b.3-dfsg-4 Concurrent, real-time, distributed ii erlang-nox 1:12.b.3-dfsg-4 Concurrent, real-time, distributed ii libc6 2.7-18 GNU C Library: Shared libraries ii libexpat1 2.0.1-4 XML parsing C library - runtime li ii libpam0g 1.0.1-5+lenny1 Pluggable Authentication Modules l ii libssl0.9.8 0.9.8g-15+lenny1 SSL shared libraries ii openssl 0.9.8g-15+lenny1 Secure Socket Layer (SSL) binary a ii ucf 3.0016 Update Configuration File: preserv ii zlib1g 1:1.2.3.3.dfsg-12 compression library - runtime ejabberd recommends no packages. Versions of packages ejabberd suggests: pn libunix-syslog-perl <none> (no description available) -- debconf information: ejabberd/user: ejabberd/hostname: localhost ejabberd/nomatch: -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
