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For the last few days, there has been a buzzing news in the community, following the recent discovery of a so-called information leak in the skype SDK. zhovner@github, published a python code sample “exploiting this vulnerability” https://github.com/zhovner/Skype-iplookup/ using a de-obfuscated SDK and published a demo site @http://skype-ip-finder.tk/. More related information on the skype-open-source project can [...]
If you are not familiar with the Mathis Equation, I recommend you quickly go over my post article Mathis Equation and TCP Performance. This is necessary since the Padhye et. al. Equation is an extension to the Mathis Equation for accuracy of TCP throughput calculation over multiple scenario of packet loss. As simply put, the Padhye [...]
If you have been following the latest improvement in the release of the 2.6.35 kernel, you have probably noted 2 major network stack improvement which have create some buzz in the geek community. Ok not really! since the RPS and RFS project has been going on since a while now by the crowd @Google Inc. [...]
Pre-requiste: Understanding of the 802.1Q Protocol The purpose of this post is to shed a light on how QinQ Vlan takes place in a bridged network environment. Before continuing, it is important to keep in mind that 802.1QinQ or 802.1ad isn’t a defined protocol in itself but a mere amendment of the already existing 802.1Q [...]
Who talks about about TCP throughput unfortunately can’t step away from the congestion problem that often occurs in TCP session connections. There are many TCP Congestion Algorithms, from Window Sliding to Fast Recovery; In this post I will only focus on the Nagle’s algorithm and how applications can be tweaked to either make use of [...]