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Do I need a reverse DNS zone in AD

We just configured a new network with a new AD in 2012 rw. One of my coworkers created a reverse DNS zoe in AD .  I am wondering if we need that in the domain. We have no mail servers on site. I was told that reverse DNS zones can create issues and they are often problematic.  So, do we really need a reverse DNS ? And do they create issues no and then?
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netcomp
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netcomp
3 Solutions
 
Cliff GaliherCommented:
There is no core windows functionality that requires reverse DNS. However some applications may benefit from it as well as providing other administrative benefits. I can't think of any issues that would exist when the zone is properly created and maintained, however, so I find that particular reasoning flawed.
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DrDave242Commented:
We have no mail servers on site.
This doesn't actually matter. Mail servers do often use reverse DNS, but only public reverse DNS; a reverse zone on your internal DNS servers wouldn't be used by a mail server at all.

You don't need one, but it won't hurt anything by being there.
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netcompAuthor Commented:
We have a good number of Mac comptuers and few linux  boxes and someone is saying that Mac and linix machines used reverse dns a lot and they need it . It just does not make sense to me . Does that make sense to you?
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Cliff GaliherCommented:
Depending on the applications in use, it is certainly possible.
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DrDave242Commented:
I'm not that familiar with Mac or Linux machines, so I can't comment on that specifically, but there's no harm in leaving the zone there. It really won't cause any problems.
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h1r0Commented:
Without reverse DNS NSLookup will be unable to identify the DNS host names.  It's not going to effect functionality but you'll get that annoying error "default Server Unknown" .  It's also nice to have reverse DNS so your clients can auto register PTR which can be helpful when trying to identify what host an IP corresponds with.  I always configure a reverse DNS zone - it doesn't hurt and provides some additional functionality that I find useful.
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