
DMA OperationsGuide  Add Required DNS Records for the Polycom DMA System
22 Polycom, Inc.
In order to access your Polycom DMA system by its host name instead of by 
IP address, you (or your DNS administrator) must first create an A (address) 
resource record (RR) for IPv4 and/or AAAA record for IPv6 on your DNS 
server(s). 
For a two-server cluster configuration, at a minimum, create a record for the 
virtual host name and IP address. This address is shared between the servers 
in a two-server cluster configuration. For administrative convenience, we 
recommend that you also create alias records for the physical host name(s) and 
IP address(es). For a superclustered system, A/AAAA records for each 
physical host name, physical IP address, virtual host name, and virtual IP 
address are mandatory. 
The DNS server(s) should also have entries for your Microsoft® Active 
Directory® server (if different from the DNS server) and any external 
gatekeepers or SIP peers. 
You may need to create additional DNS records as described below. 
Note 
These topics outline the configuration tasks that are generally required. You may 
wish to complete other optional configuration tasks, including: 
•Enable cascading of conferences (see “About Cascading” on page 182). 
•Configure calendaring service (“Microsoft Exchange Server Integration” on 
page164). 
Note 
If you’re not familiar with DNS administration, the creation of various kinds of DNS 
resource records (A/AAAA,NAPTR, NS, and SRV), your enterprise’s DNS 
implementation, and tuning for load balancing (if needed), please consult with 
someone who is. 
Note 
Depending on local DNS configuration, the host name could be the Polycom DMA 
system’s fully qualified domain name (FQDN) or a shorter name that DNS can 
resolve. For some features, such as Microsoft Exchange Server integration, it’s 
imperative that the virtual host’s FQDN can be resolved in DNS, especially by the 
Exchange server. 
If you’re using split network interfaces, we recommend creating alias records for 
both the management and signaling host names and addresses.