If I am reading this thread correctly, this may be the result of the S4B privacy settings and not DNS.
My university has implemented S4B and is setup for open federation. If add my SIP address as a contact in your S4B client you will never see my presence. In order for that to happen I must add you as one of my contacts. Try this as a test. Have someone inside the company add an external person to their S4B contacts list. Next, have the external person try to see the presence of the internal person. If they can see the presence, have another person in the external entity who is NOT on the internal person’s contact list attempt to see presence. If presence fails for them then the issue you are seeing is absolutely related to the privacy settings. FWIW S4B/Lync have a handful of privacy options that can be set but they are very lightly documented. The defaults are essentially “everyone can see everything” which may not be appropriate for all environments. /jim ---- James Rupprecht IT Architect, Enterprise Systems The University of Kansas Information Technology Office: +1 785 864-0116<tel:+17858640116> E-mail: [email protected]<mailto:[email protected]> Lync: [email protected]<sip:[email protected]> From: [email protected] [mailto:[email protected]] On Behalf Of Kuehn, Shannon Sent: Friday, May 8, 2015 11:22 PM To: [email protected] Subject: RE: [NTSysADM] DynDNS & Skype for Business? Super bizarre. Not working…even with the revised record syntax. I’m going to scour more online… When I run the Lync test, it comes back clean. So peculiar. I also might try a few machine reboots. Never hurts and some of these haven’t been rebooted for a bit. More as the time unfolds. From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Charles F Sullivan Sent: Wednesday, May 6, 2015 8:26 AM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] DynDNS & Skype for Business? I have an SRV record with them for Exchange Auto Discover, which may not help you much. I set it up a long time ago, but it works. When you do a lookup on the SRV record outside of the domain, you at least can resolve the name, right? Are the clients inside the domain using DNS servers that are different than what is public? I’m not clear on that. My settings are essentially the same as yours except that for some reason my TTL is 1440 and both weight and priority are 0, but I don’t think that would matter. From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Kuehn, Shannon Sent: Tuesday, May 5, 2015 5:40 PM To: '[email protected]<mailto:[email protected]>' Subject: [NTSysADM] DynDNS & Skype for Business? Has anyone successfully set up SRV records in DynDNS for Skype for Business? Every other DNS record is working correctly for me right now EXCEPT the SRV record for Skype for Business. All the Google-fu-ing I’ve done has lead me to do the following: [cid:[email protected]] The black lines are to hide my client’s domain. I have a ticket in with DynDNS as well. The weird part about all of this? I can sign a client in and the presence is noted (green, red, yellow, etc.) to the clients inside the domain, however clients outside the domain cannot see the presence. Super confused…wondering if anyone can help! Thanks.
