Thank you for the response Vivien.  One thing I've noticed is that I get
the same behavior whether I use %source% or %FROMHOST%.  However, I did
notice something interesting.  If the sending host is say
somehost.<somedomain>, and <somedomain> is the same domain as that of
the central loghost, then both %source% and  %FROMHOST% expand out to
the short form of the hostname.  However, if the sender's domain differs
than that of the loghost, the %source% and %FROMHOST% expand to the FQDN.

Kambiz

Vivien BERNET-ROLLANDE wrote:
> Hi
> It is normal (as per RFC<insert number here>) that %source% does not 
> contain a FQDN. %HOSTNAME% is an alias for %source% (or maybe the other 
> way arround).
> 
> However, %FROMHOST% should contain the result of a reverse DNS query, i.e. 
> the FQDN of the host the message was recieved from. If you're not using a 
> relay, this will also be the FQDN of the source.
> If you're using a relay and the relay is running rsyslog, it might be 
> possible to hack something up using the property replacer.
> 
> I know the doc on the site is for more recent versions, but you should be 
> able to find the doc for 2.0.6 under /usr/share/doc/rsyslog-2.0.6/ .
> 
> -- Vivien Bernet-Rollande
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