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What's On Your Network?
An anonymous reader writes "According to a Whitedust article you may currently have more on your network than you think you do. The article claims that not much security attention is generally given to one of the most elusive aspects of computer security; that of physical connectivity." From the article: "Broadcast traffic is on the rise, with more suspicious user activity in the logs every day. Then one morning you get a call from your irate boss wanting to know why he no longer has a network connection, yet the employees - or students or whoever - down the hall are able to play games and visit porn sites, at blazing speeds no less."
the best solution I have seen is where you have to register your equipments MAC address, then you get a "static" (i.e. always the same) ip address served to you via dhcp. No registered MAC address == no ip address. Presumably they had something looking for unregistered MAC addresses too. Pretty good, but doesn't stop you going in with a static address in the right range tho...
$ strings FTP.EXE | grep Copyright
@(#) Copyright (c) 1983 The Regents of the University of California.
This happened in Trinity College a few years ago, there were a few old AS400 Servers the Admins had forgotten about till one crashed and kill 3 of the main backend Databases with were running on them.
After 2 months of looking for the Servers, following a jungle of Cat5,Coax and AUX leads it turned out that there was some building work done about 6 years before in an old section of the College thats not been used anymore and the Servers were hidden in a room that had been blocked off behind a new wall that had been put in...?!!??!