XMPP, Connect Server, and SRV

Evan Schoenberg evan.s at dreskin.net
Thu Sep 18 22:49:19 EDT 2008

On Sep 18, 2008, at 11:35 AM, Peter Saint-Andre <stpeter at stpeter.im>  

> Peter Saint-Andre wrote:
>> Ethan Blanton wrote:
>>> Bron Gondwana spake unto us the following wisdom:
>>>> My idea of the correct behaviour is:
>>>> a) if an explicit server name is specified, use that always
>>>> b) otherwise, lookup up the _jabber._tcp or _xmpp-client._tcp for  
>>>> the
>>>>   domain part of the username.
>>>> c) finally, try the A record for the domain part.
>>> I'm pretty sure this is the *current* behavior, unless I  
>>> misunderstand
>>> you.
>> Hmm, it seems that I don't have a) captured in the specs yet:
>> http://www.xmpp.org/internet-drafts/draft-saintandre-rfc3920bis-06.html#tcp-resolution
> OK, I just added the following text to my working copy:
>   Note: If the initiating entity has been explicitly configured to
>   associate a particular hostname (and potentially port) with the
>   original hostname of the receiving entity (say, to "hardcode" an
>   association between an original hostname of example.net and a
>   configured hostname and of webcm.example.com:80), the initiating
>   entity SHALL use the configured name instead of the original name
>   when following the resolution process described above.
> Does that explain scenario (a) more clearly?

I remain unclear on whether an SRV lookup should be performed using  
the "overridden" server or not.


> Peter
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