Gl.ib.ly

A few weeks ago I came across a blog post which showed you how to corrupt your own pdf files. That post was in response to the interweb ate my homework post from Bruce Schneier.

Anyhows, Didier's method is fairly simple -- there are many other ways todo this like truncating the file or inserting some randomness using dd and /dev/urandom. So lets automate it.

Continue reading "Auto corrupting your PDF files"

Earlier we looked at how you can extract a list of all the $CFG variables in your Moodle code. Now that's not of much use! We need to know where in the code all these variables hide. I feel some spooky awk a coming on.

Continue reading "All configuration variables in Moodle code - Part two?"

From time to time things tend to go wrong and systems tend to go crazy. Sometimes these errors are more of nuisance than anything else, an intermittent annoyance you'd prefer not to investigate -- trawling through logs is a pain in the backside. Now you need to take a peak at those compressed Apache error log files, ugh! Well before you look for suitable places to hang some rope try running some expressions across a certain number of files. Normally you'd only want to look at logs for the last 7 days, so lets give that a go.

Continue reading "Searching compressed Apache logs"