RANCID under the hood (posted October 23, 2011)
This post show the internal working of RANCID and understand how it works and which scripts are executed and dependent on each other
RANCID additional commands (posted November 2, 2011)
Normally, RANCID executes some commands when connecting to network devices, this post discusses how to include additional commands.
RANCID Customization (posted November 9, 2011)
This post is discusses how to poll different groups of network devices with different sets of commands
I hope in the future I can update my knowledge with the current release of RANCID.