Author: doachs

It appears as though some machine(s) on campus is trying to take out an IRCd server. There are literally thousands of spoofed TCP SYN packets heading for a specific machine each second. The packets are pretending to be coming from what appears to be random IP addresses not on our network. So tracing this back…

Due to an unusual set of circumstances, we had to turn off email for about an hour today. A combination of a new email virus/worm, disk space, and email lists, and mail scanning, all combined with some bad luck and we ended up allowing almost everyone on campus to recieve the latest Windows email virus/worm…

Since there is such a high volume of the MyDoom infected email attachments flying around these days and some unlucky people have been getting hundreds of the email messages saying that we removed the attachment, we have now stopped sending those notifications for MyDoom. So if you are sent an email that is infected with…

This morning during a regular check of the backup generator, power was lost in our machine room. For the most part this meant everything was down for about 20 minutes starting near 8:30am. Everything should have been up and running as normal by 9:00am.

As a part of testing what we can do with wireless network access, we have placed 2 wireless access points on the 1st floor of Olin. These 2 access points appear to provide the first floor with fairly good coverage. This includes the class room on the 1st floor, the lobby, and the lab. I…

From Jeff’s email: “Around 11:15-11:30 something happened that crippled the res-hall network to the point of unusability. We made a change to revert something to the way it was around four months ago and that seems to have solved the problem. Our two outstanding questions are, did that fix it? and if so, Why was…

As everyone should know by now, another email virus is going around. As far as we can tell, nobody on campus has been infected yet. Our mailserver is deleting a lot of attachments that are infected with this virus and anything that made it through should also be caught by the latest virus definitions. However…

I made a few updates to SpamAssassin this morning. First I upgraded from version 2.61 to 2.63 which included a few bug fixes and some minor changes to the rules. Second, I enabled real time block list and DCC checking. That means SpamAssassin will query servers on the net to see if email matches a…

Yesterday we added a few plugins to our Packeteer that helps prioritize our internet usage. one of those plugins was called Apple iTunes 1.0.0. After installing this plugin I noticed that the iTunes Music Store became extremely slow and mostly unusable. One workaround was to set my system to use our proxy server. While it…