short hostname resolution

mayer at gis.net mayer at gis.net
Mon Apr 25 12:45:58 UTC 2005


----- Original Message Follows -----
> I am setting up a nameserver running on a Redhat 9 box that resides
> on a private network that will NOT utilize NAT.  named starts fine 
> and resolves FQDNs instantly for all clients.  For short hostnames,
> however, name resolution for certain clients such as 'rsh' and 
> 'host' is instant while for other clients such as 'ssh' and 'dig', 
> resolution either involves timeouts before eventually getting an 
> IP address (ssh) or delays followed by eventual failure (dig).
> 

ssh will attempt to use IPv6 transport first if possible and only fall
back to IPv4 if it's not available. dig does not use resolv.conf
unless you specify +seatch on the command line. This is by design.
You don't want to have your investigatory tool implicitly do something
behing your back when you are investigating a problem.

Danny



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