how to create jabber collab_edge dns record for different internal and external domains?

[baselzind]

i need to create jabber srv collab-edge record but the problem the customer have different local and public domain

like example.local for local domain and example.com for public domian , when i create the collab-edge srv record what should the domain and hostname be? the public or the local one , and should the hostname be vcse.example.local or vcse.example.com for A record?

[Vaijanath Sonvane · Accepted solution]

Hi,

The _collab-edge._tls.<domain> SRV record must be configured in externally routable (Public) domain i.e. example.com and it must point to vcse.example.com. The public domain is hosted by your service provider. If customer has access to Service Provider web portal then they can add it by themselves otherwise open a ticket with Service Provider.

Also, you need to configure DNS-A records for vcse.example.com hostname in Public Domain to send all requests from Public endpoints to Expressway-E Public IP Address. Attached is the document for your reference. 

[baselzind]

i guess what remain is that in vcs-c i add both example.local and example.com domain right?

[Igor Lukic]

Hi baselzind,

due to the fact that your customer is using two different DNS domains, one for internal records and another one for external records, you will need to use an auxiliary DNS domain, for which internal records will be resolved to internal resources by the internal DNS servers and external records will be resolved to external resources by the external DNS servers. On top of that, you will need to specify this auxiliary domain as the "voice services domain" in the jabber-config.xml, so that the Jabber clients will use this domain, to resolve the necessary DNS SRV records for autodiscovery of the services (_cisco-uds internall,y _collab-edge externally.).

Here is a good documentation on how to accomplish this:

https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway-series/117811-configure-vcs-00.html

Best regards,

Igor