The blog what speaks for Guido, Troy, Ryan, Brett and Matt

               
Guido Strotheide | Troy Lowe | Ryan Seggelke | Brett Thomson | Matt Janet

Saturday, September 13, 2003

Unsafe I-net 

I was looking through my firewall logs today and noticed an increase in port scans. Mostly for windows vulnerabilities, but the volume of scans did surprise me. I can't recommend enough that you should run a firewall as part of your home's safe surfing strategy. I am a little less vulnerable since I run only Unix and variants, but it still concerns me as nothing is invulnerable.

- Windows users should look into Zone Alarm
- Mac OS X has a firewall built in (System Preferences, Sharing, Firewall), but for the same type of real time alerts like Zone Alarm provides Windows users Firewalk X 2 looks really good to me.
- Linux users have firewalls available in most distributions, Red Hat 9's can be configured with 'redhat-config-securitylevel'

Even inside my work-place network, I've been hit by scans from insiders! Maybe they were infected by trojans and unknowingly scanning for someone else, but still, how scary is that? No network is safe. Take care of yourself.

**Update: So I found out that this was known to be coming over at the Internet Storm Center.

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