increase udp_ttl in aix to avoid timout.But still?

[Mark.Andrews at nominum.com]

	Remember both ends need reasonable udp ttl values.

	You could also use a forwarder that is topologically closer
	to the center of the net.

	Mark
> 
> We recently find some sites couldn't be resolved by our aix
> dns server (and the other tru64 unix dns server also).
> Finding postings on various newsgroups suggest the default
> value for udp_ttl on these 2 OS are 30, which could be low.
> I increased them on Tru64 Unix and those sites which could
> not be resolved previously are then okay.
> But doing the same increase on aix 4.2.1 still couldn't 
> resolve some "stubborn" sites (though overall there are
> less unresolved sites).
> What can i do further ?
> Change the named.ca (the cache servers' file) or find
> the relevant factors system related to aix instead ?
> any suggestions
> 
> 
> 
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com