Re: Can not delete a PTR record

"Mehmet YILDIZ" <mehmet.yildiz@xxxxxxxxxxxx> wrote in message news:49e764f5$0$16267$426a74cc@xxxxxxxxxxxxxxx

If any of the DCs are multihomed (more than one IP or more than one NIC) etc,
There is one multihomed DC but, this one is only listening to one selected IP address

==> All DCs are DNS/WINS/DHCP installed with W2K3 R2 SP2 UK

If I may suggest and recommend, never multihome a domain controller. Even if you set DNS to listen to one, the multihomed DC will register duplicate records in DNS, such as the LdapIpAdress and GcIpAddress records, which will cause problems with client access, group policies, DFS, etc. I have created a step by step to make necessary registry and other changes if you like to keep your DC multihomed to insure a multhomed DC functions properly.



My problem :

I had a linux server called "LOIS" with ip 192.168.0.1.
A static (Host) A record was created on DNS with the corresponding PTR record.
This server was suppressed last year. Its host record was deleted but not the PTR record.

What does 'surpressed' mean?

Is the Reverse Zone a secondary zone, or is it AD integrated? Are there any secondaries of this zone that another machine, possibly with the LOIS name is using, which wuold send DNS updates to it?


Now we are installing a new server called "tom" and with the same IP address (192.168.0.1)

So, there are theses records in DNS:

Forward Lookup Zone
tom 192.168.0.1

Reverse Lookup Zone (192.in-addr.arpa)
192.168.0.1 tom
192.168.0.1 LOIS (this record is in upper case, all others records are in lower case)

I have tried to create a new HOST (A) record named "LOIS" with corresponding PTR
But this operation create a new PTR record called "lois" (in lower case)
So I have three PTR records in Reverse Lookup Zone "192.in-addr.arpa" with the same IP address ("tom", "lois" and "LOIS")

Deleting host record "LOIS" only delete the PTR record "lois" (in lower case)

Best regards.
Thanks for your help

If the record is in upper case, then it means the original host that is sending the DNS updates to was spelled using upper case. DNS is not case sensitive, but will honor case when accepting registration requests.

If the reverse zone is AD Integrated, and you change the update settings to Secure Only, and delete the bad PTR, does it return?

Ace



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