DNS A Record keeps reverting after creating DFS Root

Posted on 2011-10-13
Last Modified: 2012-08-14
Copying verbatim from another blog since there were no resolution for it.

"After setting up the DFS root I was unable to access the files on the original server (FS_1).  Upon pinging FS_1 I receieved a reply from the IP address of the DFS Root box (DFS_1).  I logged into my DNS servers and changed the A Record back to the original IP address of FS_1.  Now the problem is that about every 12-24 hours the A Record on the DNS servers reverts back to the IP Address of the DFS Root (DFS_1).  I've removed all DFS root entires and cannot seem to figure out just what would be casuing the IP Address to keep reverting to the IP of the DFS Root...  any ideas?"

I am in the same situation with my environment.  DFS namespace were removed from the source servers since it did not work as intended.  All DNS reference to IP of DFS server have been removed from DNS and replicated down.  Every so often the IP for the source server would revert back to the DFS root server IP.  I can't seem to pinpoint what process keeps renaming the IP.

Question by:vqt411
    LVL 15

    Expert Comment

    by:Shaik M. Sajid
    try scavenging stalerecords on dns server..

    all the best
    LVL 14

    Expert Comment

    Why not adjust the security of the record so that it cannot be modified.

    Author Comment


    I tried deleteing the dns entry and also removing the dfs server from the security but it still came back.

    Accepted Solution

    Look like i found the problem.  Event log on the DFS server showed it was updating the server name in DNS.  I checked the FQDN of the servers that kept reverting their IP eventhough they were removed from DFS namespace and found them all in HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Dnscache\Parameters.  I removed the servers from this entry and resolved the issue.  

    Author Closing Comment

    DFS doesn't remove the name of the servers that were previously attempted to add to DFS roots and then removed.

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