Problems with our migration from MS to BIND this weekend

Danny Mayer mayer at
Fri Sep 28 21:44:02 UTC 2007

Chris Cox wrote:
> Ryan McCain wrote:
>> While doing the change I came across conflicting information on
>> whether underscores are permitted.  We do use Active Directory and
>> many of it's SRV records use underscores.  Is this a problem?
>> Does anything special need to be done in BIND to get it to work w/
>> Active Directory?
>> Thx..
> You can change the settings to ignore the "bad" names in your 
> named.conf.  However, Microsoft has made the "_"'s a standard (and we
> rolled over and gave in, btw).  Also your AD controllers will need
> the ability to make updates to the _ zones... you'll need to add
> those zones to your bind config and make sure an acl (or whatever) is
> in place to allow the AD servers to manage those zones.

No, SRV records are always prefixed with underscores. Read the RFC. It
was designed in from the start. You are thinking of A records which
still do not support underscores.


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