Miles Davis » BOFH http://miles.davis.name Ars longa, vita brevis Mon, 26 Apr 2010 19:03:15 +0000 en hourly 1 http://wordpress.org/?v=3.0 We have met the enemy and he is us http://miles.davis.name/2010/04/22/attacks-turn-ugly http://miles.davis.name/2010/04/22/attacks-turn-ugly#comments Thu, 22 Apr 2010 14:10:49 +0000 miles http://miles.davis.name/2010/04/22/attacks-turn-ugly Our normally reserved attackers apparently became frustrated or angry yesterday, and instead of the normal host-to-host hopping, password sniffing, and other relatively non-destructive activity, they MAC flooded my router. Filled the CAM tables on all Cisco devices (old Cat4ks that have been on death row for a few years now), wreaking havoc for some, while the HP switches just chugged right along. Having part of your network fall over dead while the rest is seemingly unaffected actually makes debugging harder.

Update: That’s right, it wasn’t part of the attack after all. Somewhere in Packard a student plugged something into the net that should never have been connected, a NetFPGA set up to manufacture MAC addresses. Don’t ask for any details, they’re keeping the student’s identity from me for some reason. :)

]]> http://miles.davis.name/2010/04/22/attacks-turn-ugly/feed 0 Top Operating Systems on Stanford CS wifi http://miles.davis.name/2009/12/08/stanford-wifi-top-os http://miles.davis.name/2009/12/08/stanford-wifi-top-os#comments Tue, 08 Dec 2009 17:36:07 +0000 miles http://miles.davis.name/?p=110 # Operating system # Clients % Clients Usage % Usage 1 Apple iPhone 749 34.3% 7.16 GB 1.5% 2 Mac OS X 585 26.8% 239.09 GB 49.8% 3 Windows Vista 377 17.3% 98.43 GB 20.5% 4 Windows XP 230 10.5% 93.58 GB 19.5% 5 (unknown) 205 9.4% 35.19 GB 7.3% 6 RIM BlackBerry 16 0.7% 2.3 MB 0.0% 7 Debian-based Linux 13 0.6% 6.75 GB 1.4% 8 RedHat-Fedora-based Linux 4 0.2% 164.6 MB 0.0% 9 Slingbox 3 0.1% 1.7 MB 0.0%

Wow. That’s a lot of fruit. This is the wireless network in the Gates Computer Science building. I don’t have stats for the rest of campus.

]]> http://miles.davis.name/2009/12/08/stanford-wifi-top-os/feed 0 Script kiddies http://miles.davis.name/2009/11/19/script-kiddies http://miles.davis.name/2009/11/19/script-kiddies#comments Fri, 20 Nov 2009 04:42:36 +0000 miles http://miles.davis.name/?p=108 Note to aspiring cyber criminals: once you’ve got root, don’t install a new kernel and reboot the system. It’s not subtle.

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