Aaron Parecki

I was working on a website today, and I stumbled into a problem of needing to compute the brightness of a color, so that if it is a background color, I know whether to show white text or black text. My first thought was to simply add up the RGB components of the color and use that value. It turns out that is completely wrong, since pure green looks much brighter than pure blue:

I spent about an hour bashing my head against a wall with this one.

I didn't realize it before, but the subversion server running without tunneling over ssh doesn't actually send the password in the clear when authenticating users. From the subversion book:

I was just reading this webpage about shell scripting, and discovered that you can get a lot of information about your cpu and memory from the command line.

I'm reconfiguring my RAID 5 array in one of my servers (called malachite), and having some problems doing so.

This was a problem done in my CIS 315 Algorithms class in Spring 2006.

First, I downloaded the Majordomo source code from here. Following the instructions in the included INSTALL file, I was able to get Majordomo installed relatively quickly. I ran into problems when I started trying to actually send email to the new list. The first problem I ran into was that sendmail wasn't started, but that was just silly.

My VPS was restarted yesterday, and apparently Apache wasn't shut down gracefully. I tried to go to my website, but Apache wasn't running. I SSH'd into my machine to restart apache. I typed

The other day I decided to set up my iBook so that I can do web development on it.