http://stephen.kingston.name Technical Weblog Wed, 02 May 2007 20:13:30 +0000 http://backend.userland.com/rss092 en I mentioned in the "other services" lecture that one means of dealing with the problem of distribution of security information over a large wireless network, such as a campus network is to use a RADIUS server. This is the article I mentioned describing one approach to setting up a campus ... http://stephen.kingston.name/2007/05/02/securing-campus-wireless-networks-a-radius-solution/ I mentioned the Windows NT startup process in today's lecture. I also mentioned this Wikipedia article which has more details. http://stephen.kingston.name/2007/02/08/windows-nt-startup-process/ In last Friday's lecture we discussed what is meant by the terms "kilobyte", "megabyte" etc. In particular that the meaning of the term can differ depending on what we are talking about. It is customary to think of a kilobyte of memory as 1024 bytes, but most disk sizes assume ... http://stephen.kingston.name/2007/02/06/binary-prefix/ Internet Protocol Version 6 is the imminent next generation Internet Protocol, which amongst other things will replace the four byte IPv4 addressing scheme we use now (numbers like 193.1.2.3) with a 16 byte addressing scheme. Steve Gibson discussed IPv6 on his Security Now Podcast (number 25), and as I have said ... http://stephen.kingston.name/2006/12/06/some-facts-about-ipv6/ The current issue of the Internet Protocol Journal has an indepth article on IPv6 internals. This is excellent additional reading on IPv6 beyond what I presented in today's lecture. Much of it covers the same ground, but from a different perspective - so hopefully it will be of help to anyone ... http://stephen.kingston.name/2006/12/05/ipv6-internals/ IPv6 is an important topic, and Steve Gibson pretty much botches it in his Security Now! episode 25. I don't want to criticise what Gibson is trying to do on this podcast. The area of security issues on the Internet is huge, and the breadth of reading he must undertake to ... http://stephen.kingston.name/2006/12/05/security-now-podcast-and-ipv6/ For anyone still struggling with subnetting and all those fiddly binary numbers when working with IPv4 addresses, help is at hand in the form of an excellent article in a back issue of The Internet Protocol Journal. This article takes you through the basics of IP addressing and provides an ... http://stephen.kingston.name/2006/12/04/working-with-ip-addresses/ I've been playing with the Google Maps API. The Google Maps API allows the inclusion of google maps on your own pages, and you can use the Asynchronous JavasScript and XML (AJAX) to interact with the maps. It is all very interesting, and I want to do more with this ... http://stephen.kingston.name/2006/11/28/google-maps/ Some useful pages about IPv4 address exhaustion are as follows: The Internet Protocol Journal Geoff Huston's dynamically generated graphs Tony Hain's latest quaterly updates http://stephen.kingston.name/2006/11/24/ipv4-address-exhaustion/ Some links to go with today's seminar in which we discussed the campaign for a new TLD for Wales are here: The .cym Campaign Ping Wales article on the .cym campaign The .cw Campaign http://stephen.kingston.name/2006/11/24/cym-top-level-domain-for-wales-campaign/