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# How to check DNS SRV records for Federation, Edge and Exchange

Articles on: [Networking](/en/category/networking-7qggvd/)

*   Just search the “cmd” in the search box.
  
*   Open it.
  
*   Type “nslookup”, and then press ENTER.
  
*   It’ll connect to a dns server.
  
*   To connect to google dns server, type “server 8.8.8.8” and press enter.
  
*   It’ll then be connected to googles dns server.
  
*   Type “set type=al” and press enter.
  
*   Type “_sipfederationtls._tcp.communicationsquare.com”.
  
*   Entering the above command will give the SRV records of Communication Square federation.
  
*   For different federation just change the domain.
  
  
[https://technet.microsoft.com/en-us/library/gg398680(v=ocs.15).aspx](https://technet.microsoft.com/en-us/library/gg398680(v=ocs.15).aspx)  
  
*   For Edge the following command will be used.
  
*   “_sip._tls.communicationsquare.com”
  
  
https://technet.microsoft.com/en-us/library/bb870389(v=office.12).aspx  
  
*   For Exchange Auto discover the following command will be used.
  
“_*autodiscover._tcp.communicationsquare.com”**  
  
[https://blogs.technet.microsoft.com/rmilne/2014/10/02/how-to-check-exchange-autodiscover-srv-record-using-nslookup/](https://blogs.technet.microsoft.com/rmilne/2014/10/02/how-to-check-exchange-autodiscover-srv-record-using-nslookup/)

Updated on: 31/01/2023