“USN rollback comes back with a vengeance when Domain Controllers are restored using snapshots.”

In the world of virtualization good admins make snapshots of VM’s before making significant changes, right?  Great idea except you need to be careful, because if you roll back a Microsoft Windows Domain Controller you could put yourself in a world of hurt.  Here is an excellent article from Windows IT Pro magazine written by Greg Shields explaining why you should never rollback a snapshot of a Domain Controller.

RANCID – Ubuntu How-to – Installation, device bulk imports & SSH setup

Reference: Official RANCID Website

Would you rather manually hand-enter all your network devices into each individual RANCID group configuration file?  Or how about bulk loading them from CSV file, spreadsheet or otherwise using a Bash script and a little Python magic?