Monthly Archive for August, 2009

So I’ve Decided to Take The RHCE Exam

According to the Internets, the RHCE is the “crown jewel of Linux certifications,” and since I don’t have any Linux certifications at the moment, I’ve decided to give it a shot. After taking the Pre-assessment Questionnaires about a month ago and seeing that I was in pretty good shape already, I decided to self-study using Michael Jang’s book and the Red Hat Deployment Guide rather than taking thousands of dollars worth of Red Hat classes. The more perceptive among you may have noticed my new wiki containing my RHCE “Cheat Sheet”. Hopefully someone else out there will find it useful.

Even though I can do about 95% of the stuff on the RHCE Prep Guide off the top of my head, the horror stories I’ve been reading about this test are making me pretty nervous. Any tips from current RHCEs would be appreciated. Also, if anyone is interested in logging into my test machine at home and doing something to make it unbootable, that would help me practice for the troubleshooting part of the exam.

I’m scheduled to take the test in Philadelphia on September 4th, which coincidentally, is my birthday. I guess I won’t know if that’s a good thing or a bad thing until I get the test results.

xen-vm-autosnapshot.py 1.2

The xen-vm-autosnapshot.py script has been updated with an important new option: –snapshot-tag. I still can’t believe I made such a silly oversight, but previous versions of this script had no way of differentiating between snapshots created automatically and those that were created manually. So if you happened to have some old manual snapshots lying around, the snapshot-rotate routine would have rotated them along with all the rest.

The –snapshot-tag option fixes this by allowing you to “tag” each snapshot as it’s created. Then the snapshot-rotate routine will only consider snapshots with the correct “tag.” This also allows for more advanced snapshot/rotation schedules.

Thanks to Adam Adamou at NJEDge.Net for his input.