soupdidoup

About

Accounts

Groups

Newer posts are loading.

You are at the newest post.
Click here to check if anything new just came in.

May 23 2011

Introduction to scapy - Packet Life

scapy is a Python framework for crafting and transmitting arbitrary packets. I've used scapy in labs for my articles a few times before, but today we'll be looking at scapy itself and why it's an invaluable component of every networker's virtual toolbox.

#
React

March 01 2011

High Scalability - High Scalability - A Practical Guide to Varnish - Why Varnish Matters

Tags: varnish proxy howto intro scalability cache web caching

#
React

December 09 2010

25 Tips for Intermediate Git Users : Andy Jeffries : Ruby on Rails, MySQL and jQuery Developer

I’ve been using git for about 18 months now and thought I knew it pretty well. Then we had Scott Chacon from GitHub over to do some training at LVS, a supplier/developer of betting/gaming software (where I’m currently contracting) and I learnt a ton in the first day.

As someone who’s always felt fairly comfortable in Git, I thought sharing some of the nuggets I learnt with the community might help someone to find an answer without needing to do lots of research.

Tags: git tips tutorial programming reference howto intro

#
React

July 22 2010

ImperialViolet - Overclocking SSL

In January this year (2010), Gmail switched to using HTTPS for everything by default. Previously it had been introduced as an option, but now all of our users use HTTPS to secure their email between their browsers and Google, all the time. In order to do this we had to deploy no additional machines and no special hardware. On our production frontend machines, SSL/TLS accounts for less than 1% of the CPU load, less than 10KB of memory per connection and less than 2% of network overhead. Many people believe that SSL takes a lot of CPU time and we hope the above numbers (public for the first time) will help to dispel that.

Tags: ssl security performance http https intro toread