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linuxlover.chaitanya 04-26-2012 09:06 AM

For PTR record creation Windows DNS
 
Hello all,

Please dont bash me for using windows DNS.
Our organization has windows infrastructure with AD and DNS both on windows. We have multiple VLANs created using D-Link L3 switches and those also function as DHCP for respective subnets.
One 10.10.10.x subnet is for all the servers and are on static IP address.
These have some Linux servers. I have samba and kerberos configured to join them to domain. Works fine. I can update DNS records. BUT PTR records do not get created.

I dont know much about windows and I am only member of this community online so asking question here.
Is there a way to force windows DNS server to create PTR record when A record is created.?

frankbell 04-26-2012 08:20 PM

I'm not exactly sure that this speaks to your needs, but it might be a starting point:

http://support.microsoft.com/kb/816592

linuxlover.chaitanya 04-26-2012 10:42 PM

Well thanks for the concern frankbell. But what I am looking at here is not how to update DNS records dynamically. Those are happening fine. What I am looking at is why when the "A" records are created, corresponding "PTR" records are not created or updated?

wildwizard 04-28-2012 04:58 AM

Ok google brings up W2K instructions, is the dialog still similar in that it has a check box to enable the creation of the PTR record at the same time?

http://technet.microsoft.com/en-us/l.../bb727018.aspx

linuxlover.chaitanya 04-30-2012 01:23 AM

You still dont get it. I am not creating the records manually. These records are getting created dynamically. Either DHCP is creating those records, or the systems joining the windows domain are creating those. The windows systems joining the domain are able to create the PTR fine. Only Linux systems are not able to create the PTR records.

wildwizard 04-30-2012 07:31 AM

Quote:

Originally Posted by linuxlover.chaitanya (Post 4666451)
You still dont get it. I am not creating the records manually.

Quote:

I can update DNS records. BUT PTR records do not get created.
Quote:

But what I am looking at here is not how to update DNS records dynamically.
Perhaps you need to work on your english then because that sentence says you are doing it yourself, not via some automated device. You also do not differentiate between having this problem on Linux and not on Windows, you simply state that you have this problem.

linuxlover.chaitanya 04-30-2012 07:39 AM

The first post says that Linux servers are not able to create PTR records. And I am not a native english speaker. So I may not be as good in english as you are and I try my best to explain my situation. And as this is windows infrastructure, there is no problem what so ever with windows system, be it workstation or server. Issue is with the Linux servers. And I have almost 100 odd virtual machines and physical servers with some version of Cent OS.

linuxlover.chaitanya 05-03-2012 07:04 AM

Okay, so I am doing this for more clarification.
Joining the Linux system to the windows domain using Samba and kerberos.

Code:

net ads join -U administrator
Command works fine and the system is part of our domain.

Code:

wbinfo -u
wbinfo -g

Both commands work fine and bring up the user and group list of the domain.

Code:

net ads dns register -P
This command also works fine and the DNS record is created. But only "A" record is created. Corresponding "PTR" record is not created. I dont know why this is happening. But this is happening only with Linux systems.
PTR records for windows systems are created fine without any issues.

Any pointers where the issue might be? Is it to do with windows DNS servers? I am not the administrator for the DNS but can get the access if absolutely needed.


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