Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Lync 2010 DNS & SRV records

Posted on 2011-09-14
1
Medium Priority
?
2,674 Views
Last Modified: 2012-05-12
Hi there,

I've just installed Lync Server 2010 Standard on a test VM and then Lync Edge Server on another VM.  Following this I'm trying testing connectivity with www.testocsconnectivity.com which keeps failing with the following error:


Testing the Remote Connectivity of user henry@csl.local to the Microsoft Lync Server.

Specified Remote Connectivity test(s) to Microsoft Lync Server failed. Please examine below details of specific reason for failure.

Additional Details

Failed to autodiscover. SRV Records: _sipinternaltls._tcp.csl.local _sip._tls.csl.local _sipinternal._tcp.csl.local _sip._tcp.csl.local and A records: sipinternal.csl.local sip.csl.local sipexternal.csl.local for domain of user henry@csl.local



I'm struggling with the concept of where to put these records and where to point them.  Do they need to be on my ISP's DNS Server or on my local (internal) DNS server?  Also, what port numbers am I supposed to be using and where am I supposed to be pointing them?

I'm currently adding them to my internal DNS server following the following principle:  http://technet.microsoft.com/en-us/library/gg398680.aspx

Any help would be much appreciated.

Cheers, Andy
0
Comment
Question by:andrewprouse
1 Comment
 
LVL 10

Accepted Solution

by:
jayca earned 2000 total points
ID: 36549922
I am assuming your SIP domain name will be CSL.com and not local unless this is a lab...

For internal only you need a DNS zone that matches the name of your SIP domain: CSL.local

You should go into that DNS zone, create an SRV record of _sipinternaltls._tcp.CSL.local and point it to the FQDN of the std edition server.

IF your AD domain does not match the SIP domain (most don't), then do the following:
--You should go into that DNS zone, create an SRV record of _sipinternaltls._tcp.CSL.local and point it to an A record called SIP.CSL.local.  The A record should point to the IP of the std edition or pool IP.

Again in the scenario where you should match your SIP domain to the SMTP mail domain, then let's use CSL.com as an example:
---You should go into that DNS zone, create an SRV record of _sipinternaltls._tcp.CSL.com and point it to an A record called SIP.CSL.COM which resolved to an IP for the std edition or pool IP.
**Note in this example assume the AD domain is CSL.local.

Make sense?  If not, you really should run the Lync 2010 Planning Tool, it will output the exact DNS and Certs your scenario will require on the administrative output tab.

Summary:
-Decide ont he SIP domain first (match SMTP/mail domain name)
-Then configure either scenario 1 or 2 listed above in the DNS zone matching the sip domain name.
-Ensure client is set to automatic config


0

Featured Post

Fill in the form and get your FREE NFR key NOW!

Veeam is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The new Microsoft OS looks great, is easier than ever to upgrade to, it is even free.  So what's the catch?  If you don't change the privacy settings, Microsoft will, in accordance with the (EULA) you clicked okay to without reading, collect all the…
Deploying a Microsoft Access application in a Citrix environment is not difficult but takes a few steps. However, Citrix system people are often of little help, as they typically know next to nothing about Access. The script provided here will take …
The view will learn how to download and install SIMTOOLS and FORMLIST into Excel, how to use SIMTOOLS to generate a Monte Carlo simulation of 30 sales calls, and how to calculate the conditional probability based on the results of the Monte Carlo …
The viewer will learn how to use a discrete random variable to simulate the return on an investment over a period of years, create a Monte Carlo simulation using the discrete random variable, and create a graph to represent the possible returns over…

578 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question