IT Technical Blog (Formerly WeakestLync.com)
I was recently working for a customer where their security policy prohibited traffic from the internet terminating on servers within the LAN. Skype for Business (Including previous versions Lync and OCS) uses a Reverse Proxy to terminate web requests within the DMZ Continue reading Skype for Business – Director Pool in DMZ (Secure Environment)
When enabling users for Skype for Business you may encounter the following error: “Active Directory operation failed on “Domain Controller”. You cannot retry this operation: “Insufficient access rights to perform the operation” I first blogged about this in 2011 for Continue reading Skype for Business 2015 – Enable User “Active Directory operation failed”
I recently ran an “In-Place” upgrade from Lync 2013 to Skype for Business 2015 on a 3 node Enterprise Front End pool. After the upgrade all 3 Front Ends were logging the following error every 10-15 minutes. Log Name: Lync Continue reading Skype for Business – Failed to execute a stored procedure on the back-end
Ok here is a little tip when trying to add trusted root certificate authorities to Skype for Business 2015 and Lync 2010/2013 Edge servers. Microsoft have a list of Unified Communications Certificate Providers detailed here: https://support.microsoft.com/en-us/kb/929395 Windows now automatically downloads Trusted Root certificates Continue reading Skype for Business (Lync) – Easiest way to add trusted root certificate authorities to Edge
I recently ran into a problem with Checkpoint Firewalls on a Lync 2010 deployment. The customer already had a single 2010 Front End and wished to enable external sign in over the internet as it did not work over their Continue reading Lync – Unable to sign in via Edge (Checkpoint Firewalls)
A common problem in the UK is that companies Active Directory telephone numbers will be populated in the format: +44 (0) 123 456 7891 or +44(0)1234567891 If you were to dial these numbers in the UK you would omit the +44 and Continue reading Lync – UK +44 (0) Company_Phone_Number_Normalization_Rules.txt
The scenario is a migration from Lync 2010 to Lync 2013 in a new Active Directory forest and want to migrate users buddy lists. You run DBIMPEXP.EXE on the Lync 2010 environment to export the user data to XML. On Continue reading Lync 2013 – Import-CsUserData Error
http://busylight.com/ I recently received a Busylight to test from Kuando. Inside the box you receive a Busylight USB device, a sticky pad to attach the device to your desk or screen and some brief instructions. The Busylight itself is constructed Continue reading Review: Kuando Busylight UC for Microsoft Lync