Script to sync Domain Controller SSL Certificates to a specific host

We have an application that uses LDAP over SSL to authenticate users via Active Directory. The server running the application is a member of the domain and has the domains Root CA installed in it’s local certificate store. Technically the Root CA should be good enough for the server and any applications on it to … Read more

Migrating DHCP from 2003 to 2012 R2

This post will likely fall on deaf ears since no one out there is still running Windows Server 2003 right? Well we are for our oldest DHCP server. Better yet it’s 2003 Standard (non R2) which means I can’t installed Active Directory Management Gateway Service which would allow me to remotely access DHCP on the 2003 … Read more

Some users cannot login to new NPS based VPN server

Our environment previous used a Windows 2003 Server running RAS to offer our employees VPN. This server went away for multiple reasons and we built a brand new 2012 R2 server running NPS and RAS. Since switching over we’ve had a few employees unable to login to the new VPN server. They keep getting “Invalid … Read more

Error 500 when downloading/accessing OAB in Exchange 2016

We’ve just finished migrating all of our users from a legacy AD forest with Exchange 2010 into a whole new AD forest with Exchange 2016. During the initial deployment of Exchange 2016 a new mailbox store was created, the existing system mailboxes were migrated (mailbox move) to the new store and the default Exchange 2016 … Read more

Single Mailbox Recovery can’t connect to Exchange

Our AD structure contains three domains, one root domain ( and two sub-domains, one for servers/services ( and one for user accounts ( (Users live here) (Privileged IT accounts and Exchange live here) We are running into problems with NetApp Single Mailbox Recovery where it is unable to connect to the target … Read more