Archive for the ‘security’ Category

Free 2-factor authentication with RADIUS and HOTP

HOTP is an internet standard that can be used for 2-factor authentication (i.e., something you know and something you have). This is an event-based One-Time Password protocol (i.e., the passwords are generated based on a counter i.o. the current time). This article is a description of how I used free tools to setup a complete [...]

February 12, 2008 • Posted in: security • No Comments

Dipping my toes in the Xen pool

In my previous home setup I had two physical computers, one acting as my firewall and one acting as a DMZ system. Within the DMZ system there was no separation of functionalities and the need for slightly better hardware was starting to get apparent. Combine that with the need for consolidation to cut on electricity [...]

November 15, 2007 • Posted in: code, security • No Comments