[80905] in North American Network Operators' Group
Re: Underscores in host names
daemon@ATHENA.MIT.EDU (Duane Wessels)
Wed May 18 12:23:42 2005
Date: Wed, 18 May 2005 10:21:07 -0600 (MDT)
From: Duane Wessels <cee4@packet-pushers.com>
To: nanog@merit.edu
In-Reply-To: <428B6633.7050007@ehsco.com>
Errors-To: owner-nanog@merit.edu
> Just one?
>
> Squid.
By default Squid complains if it finds an underscore in a URL
hostname. It returns an "Invalid URL" error message and explains
that underscores are not allowed in hostnames. Of course you can
make Squid accept underscores if you prefer.
We felt this was better than returning a "the domain name does not
exist" error message. It sucks for the user when a name can be
resolved by one machine or by one application, but not by another.
Even on FreeBSD you get different answers from different apps:
chef-wessels ~ 8> host super_bikes.tripod.com
super_bikes.tripod.com has address 209.202.240.100
chef-wessels ~ 9> ping super_bikes.tripod.com
ping: cannot resolve super_bikes.tripod.com: Unknown server error
Duane W.
