As for almost everything else, I run my own XMPP server using ejabberd. The setup has been stable for years, and I've never had any problem with it. Up until a few months ago when my contacts at gmail.com stopped being reachable. I didn't really look into the issue up until recently, assuming that […]
General
Wednesday, November 14 2012
AFW: Firewalling dynamic infrastructures with Chef and Netfilter
Wednesday, November 14 2012. General
Last friday, I talked about building dynamic firewalls with Chef and Netfilter at Security Bsides Delaware. It's essentially a presentation of the AFW cookbook (https://github.com/jvehent/AFW/) that we have been developing at AWeber for the past 6 months. I've received great feedback from the […]
Thursday, November 8 2012
On DKIM strength
Thursday, November 8 2012. General
As you've probably read in the press, DKIM is broken and we're all going to die. But that's OK, it usually happens twice a year. DKIM is a signature algorithm used to authenticate the domain an email claims to originate from. spongebob@gmail.com sends an email to eugene@yahoo.com the gmail MX server […]
Wednesday, August 1 2012
FFmpeg MP4 encoding
Wednesday, August 1 2012. General
Encoding video is hard. I've been poking around Final Cut Pro X for the last 2 days, trying to find a good way to encode the video of a Talk I gave, and couldn't get to a reasonable size (~300MB) without terrible image and sound quality. Until I found this discussion: […]
Saturday, June 2 2012
Online Ads Revenue ? Bullshit !
Saturday, June 2 2012. General
For many years now I have been wondering if I should put ads on the Linuxwall's Wiki. Last month, I ran an experiment, created a google adsense account, and gave it a shot. This website doesn't get crazy traffic. Roughly ~7,500 pages views per month, and almost 5,000 unique visitors. Its goal is not […]
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