Abstract: During troubleshooting you found the event Error 1006 (The Microsoft Exchange Mailbox Replication service was unable to process jobs in a mailbox database) on your Exchange environment and wish to solve that.
Abstract: This short howto explains, how a basic nagios installation could be installed, which can be used to trigger remote Powershell commands for monitoring purpose.
Abstract: A user wish to publish his calendar via Outlook onto a WebDav Server, however the option "Whole calendar" is greyed out.
Abstract: Per default a IIS Server (Version 8.5 on Windows 2012 R2) running components from Microsoft Skype for Business advertise an "X-AspNet-Version: 2.0.50727" in the http server response. This could be used by an "hacker" to find possible vulnerable server, so it might be a good idea to hide that information.