Static in the Ether

Laura A. Robinson has a nice piece describing the traditional OSI stack in terms of the negotiation of a meeting between two mafia a Dons.  While probably not for the technically minded ( I’m sure most people in the networking and security fields have their own little mnemonics to remember the PDNTSPA acronym), I think [...]

[Read more →]

Version 0.3 of PicViz has been released, based on python and QT – which bodes well for potential portability. This is yet another tool to help one actually filter through piles of connections, using a classic parallel axis setup.  Drilldown is offered. Some example renderings of  the Kaminsky DNS attacks are available.
A more advanced version [...]

[Read more →]

Taking some data gathered form various filters I’m investigating for the local schools network,a nd combining with some custom scraping tools which Blake has been assisting with Ive drawn a map of the location of some 15 000 IP addresses representing the seedy side of the Internet.

The image is rendered using the Hilbert Curve [...]

[Read more →]

While processing some rather large lists of addresses as part of a side project, I needed to be able to sort them in a numerical order within a shell script. I had a file with lines like:

69.90.132.19
69.90.132.22
66.152.91.84
208.122.204.181
69.90.132.22
69.90.132.31
216.131.106.249
216.131.84.26
67.55.105.252
208.64.44.102

Standard sort using sort –n only sorts on the first octet, and although it’s a improvement on alphabetic sorting [...]

[Read more →]