Adding Reverse DNS Support to Webalizer

I recently had to reinstall Webalizer from source, after some conflicts necessitated removing the existing Yum-installed version. I ran into some problems in that the new installation of Webalizer wasn't performing reverse DNS lookups on visitor IP addresses - something it's usually happy to do. Searching the web was strangely fruitless, even though it seems to be a reasonably common issue, so here's a quick writeup of the problem and what I did to fix it.

Recovering a Deleted File from Subversion

This comes up every so often, and I always have to look up how to do it. So for future reference here's a quick howto on finding and recovering a previously deleted file from a Subversion repository. This assumes that you know roughly the name of the file, and roughly where it was in Subversion.