To be perfectly honest you probably don't want to put a rule like that
in any firewall anyway.  The only way to allow it to do something like
that is to pull a DNS zone transfer to get the list of all hosts in that
domain and then build the ip rules from there.  Firewalls are ignorant
of DNS in general so all DNS names are translated to IP to apply the
rule.  Most DNS servers will not allow just anyone to pull a DNS zone
transfer so this would fail most of the time.

This is not a permanent solution but might help you right away.  You
could figure out what ip or hostname the software is connecting to for
this software to work (protocol decode or check shorewall logs to see
what is being blocked from this machine).  Then after that add the rule
bu IP or reverse DNS or do an the IP to get the hostname (might work
might not).

Best of luck,

On Mon, 2013-07-29 at 18:17 +0200, Boris wrote:
> Hej all,
> 
> 
> I'm looking for help in a shorewall rule thing:
> 
> There's a local software on 192.168.20.1 communicating on some ports
> with several hosts in the net, so the rules sound like
> 
> ACCEPT     loc:192.168.20.1     net:host1.theirdom.de    80,443
> ACCEPT     loc:192.168.20.1     net:host2.theirdom.de    80,999
> 
> host1 is resolved to a different IP than host2.
> 
> Because the communication still doesn't work, I was asking (at least
> three times) for the complete set of communications that have to be
> accepted and got new rules every time.
> Now, that it's beginning to hurt, they tell me I should accept traffic
> to all hosts *.theirdom.de. In fact, theirdom.de cannot be resolved.
> 
> So, what to do? Is it possible to work with a wildcard? The longer I
> think about, it seems to be nonsense....
> 
> !!??
> 
> Regards,
> 
> Boris
> 
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Phone: +1 847 406 9018



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Version control is standard for application code, but databases havent 
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