Andrei's den

vim as hex editor?

andrei — Fri, 07 May 2010 10:29:24 +0000

Yes..who would have thought? Being a vim user, I hoped it would be able to edit hex files. I didn’t know for sure if it can do it or not so I decided to start digging into the manuals. This nice feature of vim has proven to be really important for me lately, now that [...]

Combining inotify and python with pyinotify.

andrei — Thu, 22 Apr 2010 11:03:00 +0000

While working on a python project recently, I got to the point where I had to monitor a file for modifications. For example, I want to monitor an sqlite database (which is a normal file) to check if I’m the only one modifying it. Fortunately, pyinotify comes to the rescue! Unfortunately, the documentation on their [...]

Computing a HMAC inside the Linux kernel.

andrei — Tue, 09 Mar 2010 10:44:51 +0000

Recently I’ve been experimenting with Hash-based Message Authentication Code (HMAC) and I got to the point where I had to implement it inside a kernel module. Not having any experience with how I could go about doing it, I went searching for the Crypto API on the Internet. Surprise surprise, there isn’t much to search [...]

Eduroam on n900 – TELECOM SudParis

andrei — Wed, 17 Feb 2010 09:45:23 +0000

One of the WiFi networks available for students and staff at TELECOM SudParis (France) is Eduroam. Since I’m not always in the office, I need a WiFi connection for occasional email checking/sending. So, I decided to give Eduroam a go on my Nokia n900. Before the firmware update (version 3.2010.02-8) released on Feb 16th, it [...]

Writing Loadable Kernel Modules using netfilter hooks (in-depth HOWTO) – Part 1

andrei — Sun, 14 Feb 2010 23:03:24 +0000

Note: This article was inspired by the lack of updated documentation on how to write proper netfilter kernel modules. At the time I’m writing this article, the latest stable release was 2.6.32.8. I am also assuming you are familiar with how LKMs (Loadable Kernel Modules) work. If you are not, then you might want to [...]

Neuromancer

andrei — Thu, 12 Nov 2009 18:30:01 +0000

I’ve recently come across a SF novel by the name of “Neuromancer”. Maybe some of you have heard about it, or maybe not. The point is that if you are into SF and you like technology/computers, then this is a “must read” book! I found so many connexions to recent and past SF movies that [...]

Google Wave

andrei — Sun, 04 Oct 2009 11:47:57 +0000

Google Wave is finally out! I was lucky enough to receive an invite from day 1 so for the past days I’ve been taking it for a ride. What I can say so far is that this application shows amazing potential! As you log in for the first time, you start with a pretty clean [...]

Installing GeForce GT220 drivers under Linux

andrei — Tue, 11 Aug 2009 09:27:30 +0000

I’ve recently upgraded my old desktop. For this occasion I decided to go for an Nvidia video card (the GeForce GT220) since it is better supported than ATI cards; and while at it, I also decided to go for a clean install of Ubuntu 9.04 (64-bit, of course). Everything went smoothly. The install time took [...]

Bad Free.fr!

andrei — Tue, 28 Jul 2009 17:05:32 +0000

When testing a little program that I’ve made, called ptool (more info here), I have found out that the LAN interface of my ADSL router was operating in promiscuous mode. The router is a standard issue from Free.fr. I have no reason why this would happen, especially on the LAN port. If this is common [...]

Triplifying Bugzilla

andrei — Tue, 28 Jul 2009 15:48:53 +0000

I have recently joined the Computer Science department of TELECOM SudParis as an intern. My job is to integrate Triplify and Bugzilla in order to create semantic data. In other words, I have to export data from the Bugzilla database to an RDF file. All this is possible due to Triplify, a php script that [...]