[BlueOnyx:22323] Re: DNS

[Colin Jack]

Thanks.

I tried that but still stopped named starting!

Colin

> -----Original Message-----
> From: Blueonyx <blueonyx-bounces at mail.blueonyx.it> On Behalf Of neal
> pressman
> Sent: 13 August 2018 20:20
> To: BlueOnyx General Mailing List <blueonyx at mail.blueonyx.it>
> Subject: [BlueOnyx:22319] Re: DNS
> 
> i ran into this a week ago for a 1 off request from a customer who needed an
> "_" to use some 3rd party email service.
> 
> i just added it to the db.domain.name.include file be hand
> 
> --
> Open WebMail Project (http://openwebmail.org)
> 
> 
> ---------- Original Message -----------
> From: Michael Stauber <mstauber at blueonyx.it>
> To: blueonyx at mail.blueonyx.it
> Sent: Mon, 13 Aug 2018 14:02:19 -0500
> Subject: [BlueOnyx:22318] Re: DNS
> 
> > Hi Colin,
> >
> > > I have been asked by a client to create a new CNAME record on the
> > > DNS for the following:
> > >
> > > NEW Record Type: CNAME
> > >
> > > Hostname: _69F8BF440B0DA58166380745E0EB4F5F.domain.co.uk
> > >
> > > Point to:
> > >
> 57BB458482A5AB33474E97891351014E.E610BBD363C7C2E032B35DDA755B2
> B52.55WcQD58
> V50sJqcKeKP5.comodoca.com
> > >
> > > Bind says no! :-/
> > >
> > > It won’t accept either of the host names using the GUI and adding it
> to
> > > the include file causes an error.
> > The regular expressions that the GUI uses to validate input type
> > "hostname" is like this:
> >
> > <typedef name="hostname" type="re"
> >
> > data="^(([a-z0-9]|[a-z0-9][a-z0-9\-]*[a-z0-9])\.)*([a-z0-9]|[a-z0-
> > 9][a-z0-9\-]*[a-z0-9])$"
> >
> > />
> >
> > So ... no upper case characters and no leading "_". Granted, we're a
> > bit more strict there than RFC 952 and RFC 1123, which say that the
> > characters are case insensitive. Meaning: Put a big "A" there or a
> > small "a" and it doesn't matter. Both are treated as the same.
> >
> > Still: The fact remains that host- and domain names (according to
> > RFC) may not start with anything *but* a character or (as of RFC
> > 1123) a number. Hence: The underscore is a total no-no.
> >
> > Unless you're talking domain keys (which are deprecated anyway) or SRV
> > records.
> >
> > I guess what your client really wants is either a CAA-record or a
> > SRV-record and not a C-name?
> >
> > --
> > With best regards
> >
> > Michael Stauber
> > _______________________________________________
> > Blueonyx mailing list
> > Blueonyx at mail.blueonyx.it
> > http://mail.blueonyx.it/mailman/listinfo/blueonyx
> ------- End of Original Message -------
> 
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