December 9 2010

Add SRV record for Lync to Unix BIND DNS

Recently I need to add the _sipinternaltls SRV record for Lync to a DNS server running BIND on Unix (same process for _sipexternaltls). After reading through this article – http://www.linuxquestions.org/questions/linux-networking-3/howto-ms-active-directory-with-bind-on-linux-379377/ – I found that it wasn’t too hard – just needed to add the following line to the db.zonename file:

_sipinternaltls._tcp.danovich.com.au. SRV 0 0 5061 sip.danovich.com.au.

In my case I pointed the SRV record to an A record – sip.danovich.com.au that had the IP address of the internal Lync pool. I did it this way because otherwise you will get an error on your Lync client stating Lync cannot verify that the server is trusted for your sign-in address. Connect anyway?. More about this error here – http://www.confusedamused.com/notebook/780/.

Don’t forget to restart BIND so it reloads your DB file.

 
 



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Posted December 9, 2010 by danovich in category "OCS / Lync

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