#SKYPE FOR BUSINESS 2013 REQUIREMENTS SERIES#
Ensure the MTLS certificates configured on the Persistent Chat Server and Lync Server are valid. This paper shows the Skype for Business 2015 - (Lync 2013) Servers in a typical On-Premise deployment and discusses the Roles and their Functions as Part 2 of a series that specifically looks at Microsoft Skype for Business 2015 (Lync 2013) and the challenges and solutions for integrating Skype for Business 2015 with H.323 or SIP standards compliant videoconferencing systems. Review certificate related sections in Persistent Chat Planning and Deployment Guide. The Persistent Chat server can not establish or maintain MTLS connection to the Lync Server.Ĭause: This problem is usually caused by an invalid MTLS certificate configured on the Persistent Chat Server or Lync Server. That way, in case of getting a certificate with a wrong name on the subject, an alert will be trigger. Unfortunately, it does not shed any light upon the actual requirements for the Subject or SAN names which are required, especially as the Lync 2010 Group Chat required different certificates for the TLS negotiation and for the IIS.įortunately, Microsoft were kind enough to alert us on the Lync Event Viewer for any TLS negotiation that fails between the Lync Front Ends server and the Persistent Chat servers. Make sure that you have the required certificate(s) before you start the Persistent Chat installation, especially if you are using an external CA.
#SKYPE FOR BUSINESS 2013 REQUIREMENTS INSTALL#
To install Persistent Chat Server, you must have a certificate issued by the same CA as the one used by Lync Server 2013 internal servers for each server running the Persistent Chat Web Services for File Upload/Download. Microsoft did published the following notes on “Certificate Requirements for Persistent Chat Server”: 648 pixels by 648 pixels for use in Skype for Business and Skype for Business Web App Skype for Business Web App.
I recently been asked about the certificate requirements for deploying Lync 2013 Persistent chat enterprise pool version which requires dedicated servers to be installed in the Lync environment as part of a Persistent Chat pool.įollowing Microsoft guidance and checklist and requirements for Persistent Chat installation, I wasn’t able to find any real guidance for the Certificate requirements, especially not like there is for the other Lync Internal servers in the “ Certificate Requirements for Internal Servers” guide. 96 pixels by 96 pixels, for use in Microsoft Outlook 2013 Web App, Microsoft Outlook 2013, Skype for Business Web App, and Skype for Business.
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