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Journée utilisateurs du Netfilter Workshop

La journée utilisateurs du Netfilter Workshop aura lieu à Paris le 29 septembre 2008. Cette journée prendra la forme d’une série de conférences sur Netfilter. Les sujets seront variés allant de la...

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Contribution au libre, 2009 commence fort.

Du côté de mes contributions au logiciel libre, l’année 2009 commence assez fort. Il semble que j’ai réussi à déclencher une petite révolution. Le système de test de NuFW avait mis en évidence un crash...

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Mon bureau en mode noyau

Non, non, vous ne verrez pas dans cet article de screenshots du noyau ! J’ai juste envie de poster ici une capture d’écrans que j’ai réalisée et commentée il y a quelque temps. J’étais à ce moment-là...

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En route vers le 2.6.30 et encore merci Denis

Oui, bon, vous savez sans doute que le noyau Linux 2.6.30 est en cours de réalisation. Mais saviez-vous que grâce à l’excellent Denis Bodor toute une série de patchs a été incorporée au noyau ? Lors de...

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Splitting and shrinking a git repository

I have recently faced the challenge to rewrite a git repository. It has two problems: First problem was small: an user has commited with a badly setup git and E-mail as well as username were not...

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Massive and semantic patching with Coccinelle

I’m currently working on suricata and one of the feature I’m working on change the way the main structure Packet is accessed. One of the consequences is that almost all unit tests need to be rewritten...

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Optimizing Suricata on multicore CPUs

Suricata IDS/IPS architecture is heavily using multithreading. On almost every runmode (PCAP, PCAP file, NFQ, …) it is possible to setup the number of thread that are used for detection. This is the...

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More about Suricata multithread performance

Following my preceding post on suricata multithread performance I’ve decided to continue to work on the subject. By using perf-tool, I found out that when the number of detect threads was increasing,...

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Building Suricata under OpenBSD

Suricata 1.1beta2 has brought OpenBSD to the list of supported operating system. I’m a total newbie to OpenBSD so excuse me for the lack of respect of OpenBSD standards and usages in this...

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Joining the OISF coding staff

My collaboration with OISF has been announced today. This is an honor for me to join this excellent team on this wonderful project. I’ve taken a lot of pleasure in the past months contributing to the...

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