[cisco-voip] Integrating CUPS with External Domain: Google Talk

[Eric Pedersen]

Hi Kenneth,

Google already has the gmail.com SRV records so you don't need to add those to your DNS.  All you need to add to your DNS are the _xmpp-server SRV records for your CUPS servers.  The federated domain you need to put in CUPS should just be gmail.com. The dialback secret confused me too. You can put any string in there. As I recall, when you send an XMPP message to another domain, their XMPP server will send a verification request message back to your XMPP server with that string to make sure your original message wasn't forged.

Eric

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kenneth Hayes
Sent: 28 March 2013 10:37 AM
To: Cisco VoIPoE List
Subject: [cisco-voip] Integrating CUPS with External Domain: Google Talk


Hello all,

This morning I've been working on my integration for Google Talk and CUPS/Jabber. From what I was reading I need to add the following information in my public DNS:

_xmpp-server._tcp.gmail.com<http://tcp.gmail.com>. IN SRV 5 0 5269 xmpp-server.l.google.com<http://xmpp-server.l.google.com>.
_xmpp-server._tcp.gmail.com<http://tcp.gmail.com>. IN SRV 20 0 5269 alt1.xmpp-server.l.google.com<http://alt1.xmpp-server.l.google.com>.
_xmpp-server._tcp.gmail.com<http://tcp.gmail.com>. IN SRV 20 0 5269 alt2.xmpp-server.l.google.com<http://alt2.xmpp-server.l.google.com>.
_xmpp-server._tcp.gmail.com<http://tcp.gmail.com>. IN SRV 20 0 5269 alt3.xmpp-server.l.google.com<http://alt3.xmpp-server.l.google.com>.
_xmpp-server._tcp.gmail.com<http://tcp.gmail.com>. IN SRV 20 0 5269 alt4.xmpp-server.l.google.com<http://alt4.xmpp-server.l.google.com>.
Now in my DNS provider I enter the SRV=xmpp-server and the protocol= tcp, etc. etc. but the target I'm assuming I need to add the "xmpp-server.l.google.com<http://xmpp-server.l.google.com>, just need confirmation on that...here's the thing the section "xmpp-server._tcp.gmail.com<http://tcp.gmail.com>" I'm suppose to replace the ".gmail.com<http://gmail.com>" with my domain, but I can't place that information anywhere (so I'm assuming this is a provider issue?).

Now on to the Presence configuration, I'm confused on the dialback secret, I'm not sure what I'm suppose to put there so I need some claifications there. When Presence wants me to configure the Federated Domain do I put "xmpp-server.l.google.com<http://xmpp-server.l.google.com>" or do I simply put l.google.com<http://l.google.com>?

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