Is bind 9.2.1 allowed "_" in dns name?

Gregory Hicks ghicks at
Wed Oct 23 16:43:12 UTC 2002

> From: "Cricket Liu" <cricket at>
> To: <bind-users at>
> Subject: Re: Is bind 9.2.1 allowed "_" in dns name?
> Date: Wed, 23 Oct 2002 09:03:33 -0600
> David Botham wrote:
> > <places head and neck on chopping block> So, when did underscores
> > become legal in hostnames?
> I didn't say they had.  I said that BIND 9 name servers don't do name
> checking.

But given the way the set of characters is specified in the RFC, the
syntax (char set...?) for a host name should be checked for legality...

Gregory Hicks

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