ejabberd - Comments for "S2S GTalk problem..."

Problem seems to have dissapeared

jadahl — Tue, 03 Aug 2010 15:08:54 +0000

Starting last night, communication with Google Talk has started working again. No change from my side, it just suddenly started working.

Edit: make that working temporary.

Tracing the error

jadahl — Sat, 31 Jul 2010 06:20:23 +0000

I ran tcpdump while the error occurred, and got the following results:

E = ejabberd
G = gtalk server

E connects to G
E: <?xml version='1.0'?><stream:stream xmlns:stream='http://etherx.jabber.org/streams' xmlns='jabber:server' xmlns:db='jabber:server:dialback' to='gmail.com' version='1.0'>
G: <stream:stream id="7BD1F284707D47EE" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:server" xmlns:db="jabber:server:dialback">
E: <db:result from='[my domain]' to='gmail.com'>3570768198</db:result>
... 20 seconds pass ...
G: Close connection.

As far as I can see, if Google would follow the specification[1] it should reply to the dialback request, but fails to do so completely.

[1] http://xmpp.org/extensions/xep-0220.html#sect-id159076

Re: Ok, here is the solution Add

jadahl — Wed, 28 Jul 2010 21:50:23 +0000

I'm afraid it's not that easily fixed. The inability to establish connections are from both ends. I cannot establish a connection From gtalk to my domain, nor the other way around. Also note that the other domain running on the same ejabberd node (mostly, at least now while testing the above advise) works fine.

Ok, here is the solution Add

frankoi — Wed, 28 Jul 2010 13:11:01 +0000

Ok, here is the solution

Add it to your /etc/hosts to bybass the /etc/resolv.conf resolution :
74.125.47.125 xmpp-server.l.google.com

source :
http://dma.livejournal.com/3870144.html

Just for reference, this is

mfoss — Wed, 28 Jul 2010 09:24:00 +0000

Just for reference, this is also reported (without any discussion so far) in https://support.process-one.net/browse/EJAB-1283

And some discussion in this mailing list thread:
http://mail.jabber.org/pipermail/operators/2010-July/000980.html

/etc/hosts

frankoi — Wed, 28 Jul 2010 08:00:55 +0000

could you tell us what is inside your /etc/hosts ? ;)
thanks a lot

Same here

dwaite — Wed, 28 Jul 2010 05:32:21 +0000

Looks like the main xmpp server @ google (xmpp-server.l.google.com.) is broke, and refuses to do dialback. Other servers seem fine.

I added a /etc/hosts entries for it and every google apps domain I have (including gmail.com), and now things appear to be working (knock on wood)

You're not alone to have this problem

frankoi — Tue, 27 Jul 2010 08:42:14 +0000

Same as jadahl and cjones !

jadahl: I'm seeing the same

cjones — Tue, 27 Jul 2010 05:38:30 +0000

jadahl: I'm seeing the same problem, starting the same day you posted. I agree; this doesn't look like a DNS problem, and it's specific to gmail.com. I ran ejabberd with debug enabled, but I wasn't able to sift out any useful information.

Re: S2S GTalk problem...

jadahl — Mon, 26 Jul 2010 18:26:20 +0000

We have a similar problem on our server, and it seems to be happen all over the net. However, the error messages are not the same. I have seen messages such as this one:

I(<0.14143.13>:ejabberd_s2s_out:416) : wait for validation: [our domain] -> googlemail.com (closed)

. It seems not to be due to any DNS error, since one of our virtual hosts has no problem, while the other one (running on the same node) only works sporadically.

We have also tried different versions of ejabberd, and I've seen the problem being reported for other servers too, so it does indeed more and more look like gtalk's interoperability is rather flawed.

The problem you have looks more related to that you cannot complete the DNS request. Check that you can resolve it successfully with: dig -t SRV _xmpp-server._tcp.googlemail.com .