We had a departure here recently of an individual who had his own fiefdom here. He never liked the way anybody else did things, and while I admire his ability to keep things working the way he wanted them to, he didn't document shit, and had an attitude of "his way or the highway" to the point where he actually took departments he was responsible for, put them on their own subnet, and filtered them out from the rest of the system.

I've been tasked with dissecting the tangled mess of lines and making sure it's all working, documenting it, then reintegrating the various departments with the main network.

There are three servers that I know of, all running Redhat Fedora, which I am not very familiar with. I do have a 'yum list installed' response from all three.

Any suggestions on dissecting these machines without killing them?