Internal DNS Inverse Configuration

Nick Allum Nick.Allum at
Fri Mar 4 20:08:10 UTC 2005

Yes The 10 address space is defined however there are a number of
workstations etc... In that space and we do not define inverse entries
for them. And I understand there is a way for the DNS Server to respond
more quickly on addresses not specifically defined (respond with a

Thanks again for the help

-----Original Message-----
From: bind-users-bounce at [mailto:bind-users-bounce at] On
Behalf Of Kevin Darcy
Sent: Friday, March 04, 2005 2:59 PM
To: comp-protocols-dns-bind at
Subject: Re: Internal DNS Inverse Configuration

Nick Allum wrote:

>I have an internal Solaris Bind 8 Server and we are looking to improve=20
>performance with regards to inverse entries. We have an internal 10=20
>network and have inverse entries for some of our devices. The problem=20
>is when we do an inverse lookup on a 10 address that is not in dns it=20
>takes a bit of time to come back with a failed response. I understand=20
>that there is a way so if the inverse entry is not there for one of our

>10 addresses we can get the dns server to quickly respond. Does anyone=20
>know what the configuration is.
It's "reverse", not "inverse".

Simple answer: define the namespace in your internal=20
DNS. I'm somewhat surprised that you haven't already done this. Haven't=20
you actually *wanted* those 10.*.*.* addresses to reverse-resolve to=20
meaningful names?


                     - Kevin

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