No, really. Patch your DNS.

“First, take the advisory seriously—we’re not just a bunch of n00b alarmists, if we tell you your DNS house is on fire, and we hand you a fire hose, take it.” Sage advice from Paul Vixie on the recent DNS Cache Poisoning exploit. Many systems remain unpatched, even though this security vunerability is critical and should be addressed immediately.

Multi-Vendor patch addresses major DNS exploit

In a rare show of cooperative effort, multiple vendors released a patch today to their DNS implementations, the underlying technology behind connecting domain names to the IP addresses they live on. DNS Admins are urged to patch the systems in their charge, immediately . Securosis has the full story. Here’s a tool to test to see if you’re at risk to the Cache Poisoning exploit.

Interestingly enough, only one DNS implementation was not affected: DJBDNS.

followinger

Need to make snap decision to follow someone back on twitter? Then let followinger do the hard work of figuring out if they are a lamer, a spammer, or another fly by nighter. Follow followinger, then send a direct message with the username of the person you are interested in, and they send back some useful stats, such as date of join, number of tweets, and ratio of followers to followings. Interesting tool, for sure.