Configuring DNS Server Avaya Breeze® platform nodes

Last Updated : Oct 29, 2020 |
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The DNS server used by Avaya Breeze® platform does not need to be the same as the one used by the Microsoft servers. But in either case, the SRV and A records verified in Step 1, need to be resolvable by the DNS used by all Avaya Breeze® platform nodes.
Note:
The DNS configuration can be during Avaya Breeze® platform installation, or can be adjusted later by using the CEnetSetup CLI command. For more information about the CEnetSetup CLI command, see the Administering Avaya Breeze® platform guide.
  1. Verify DNS SRV Record representing Microsoft domain service locator and verify Front End server FQDN to IP address resolution using Linux cli command.
    ADDITIONAL INFORMATION:
    In the Microsoft RTC, Skype for Business configuration, it should have this _sipinternaltls._tcp SRV Record defined. The SRV record provides service location for Skype client to locate the service from Front End server. The same SRV Record is also used by Presence Service to locate the Front End server for Presence/IM service.$ nslookup -querytype=srv _sipinternaltls._tcp.bvwlab.com 192.0.2.42
    Server    :         192.0.2.42
    Address    :        192.0.2.42#53
    _sipinternaltls._tcp.bvwlab.com service = 1 100 5061 sip.bvwlab.com
    $ nslookup sip.bvwlab.com
    Server    :         192.0.2.42
    Address    :        192.0.2.42#53
    Name        :   sip.bvwlab.com
    Address    : 192.0.2.43
    In this example, the DNS Server IP address is 192.0.2.42 and _sipinternaltls._tcp SRV Record for domain bvwlab.com points to Front End server FQDN of sip.bvwlab.com and Front End FQDN sip.bvwlab.com is revolved to IP address 192.0.2.43.
  2. Restart Presence Service Snap-in after modifying Breeze DNS resolver configuration file.