RRAS Adapter’s DNS Entry Causing Issues with Member Servers

IT

RRAS Adapter’s DNS Entry Causing Issues with Member Servers

by Kelly Culwell
//

Today I worked on an issue with a client who has a Small Business Server providing AD/DNS, Exchange, and RRAS services among others.  They also have a member server that does web content filtering.  The problem was that after a patching session and reboots, the web filtering server would no longer accept remote desktop sessions.  The event log had various errors, some which indicated “There are no more endpoints available from the endpoint mapper.”  The server was unjoined from the domain and rejoined but continued having problems.  DCDiag and NetDiag indicated multiple failures, specifically with communicating with the domain, the trust relationship, and DNS resolution.  The errors were still present after rejoining to the domain and deleting the computer account in between.

DCDiag and NetDiag led me back to the simple principle of pinging the domain, the DC short name, etc.  I noticed the short name of the server responded with an IP that was not consistent with the assigned IP of the server, so I looked for the RRAS service and saw it was running with the “bad” IP.  I deleted the DNS entry for that IP and RDP worked!…then didn’t again.  I looked back in DNS and the offending entry was back, so I went into the DNS management GUI and noticed it was listed in the IP addresses of the interfaces tab.  I removed this, deleted the entry, flushed DNS on the web filtering server, and RDP worked.  I also ran DCDiag and NetDiag again, both of which passed their tests.

More About the Author

Kelly Culwell

Solution Architect
Backup Academy Launch Set, Free Training Available! “Traditional backup software does not understand virtualization.” – David M. Davis.   Tomorrow marks the launch of a new FREE learning ...
Dell EqualLogic Multipath Extension Module Default Value Limitations During a recent install of a three-host ESXi cluster with an EqualLogic PS6000XV and redundant, dedicated iSCSI switches I noticed a ...

See more from this author →

Subscribe to our newsletter

  • I understand that InterWorks will use the data provided for the purpose of communication and the administration my request. InterWorks will never disclose or sell any personal data except where required to do so by law. Finally, I understand that future communications related topics and events may be sent from InterWorks, but I can opt-out at any time.
  • This field is for validation purposes and should be left unchanged.

InterWorks uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to this policy. Review Policy OK

×

Interworks GmbH
Ratinger Straße 9
40213 Düsseldorf
Germany
Geschäftsführer: Mel Stephenson

Kontaktaufnahme: markus@interworks.eu
Telefon: +49 (0)211 5408 5301

Amtsgericht Düsseldorf HRB 79752
UstldNr: DE 313 353 072