
DMA OperationsGuide  Embedded DNS
260 Polycom, Inc.
You can enable these embedded DNS servers on the Embedded DNS page. 
This is a supercluster-wide setting. 
If you wish to use this feature, your enterprise DNS must place the Polycom 
DMA system supercluster in charge of resolving a sub-domain. To do this, you 
must: 
•Add NS records to your enterprise DNS so that it refers requests to resolve 
the site-based logical host name to these embedded DNS servers. 
•Configure your enterprise DNS to forward requests for names in the 
site-based logical host name to any of the clusters in the supercluster. 
See “Additional DNS Records for the Optional Embedded DNS Feature” on 
page24. 
The following table describes the fields on the Embedded DNS page. 
To enable DNS publishing 
1Be sure you’ve added the required NS records, one for each cluster in the 
supercluster, to your enterprise DNS and have configured it to forward 
requests for n ames in the  logical Cal l Server dom ain to any of  the clusters  
in the supercluster (see “Additional DNS Records for the Optional 
Embedded DNS Feature” on page24). 
2Go to Admin > Call Server > Embedded DNS. 
3Click Enable embedded DNS service. 
4Enter the domain name of the enterprise domain for which the DMA 
system is to provide DNS and click Update. 
5Reconfigure your endpoints to register to the correct domain name for 
their site. 
The correct domain name is: 
callserver-<site name>.<logical Call Server domain name> 
Table10-23 Fields on the Embedded DNS page
Field  Description
Enable embedded DNS 
service 
Enables the embedded DNS servers. 
Call server sub-domain 
controlled by DMA 
The fully qualified domain name of the enterprise 
domain for which the DMA system is to provide DNS. 
For instance, for the base domain example.com, the 
sub-domain that the DMA system services might be: 
callservers.example.com
This is the logical Call Server domain name for which 
you must create NS records in your enterprise DNS.