CloudBleed – CloudFlare bug exposes sensitive data from million sites
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CloudBleed – CloudFlare bug exposes sensitive data from million sites

A severe security vulnerability has been discovered in the CloudFlare content delivery network that has caused big-name websites to expose private session keys and other sensitive data. Last Friday, Tavis Ormandy from Google’s Project Zero contacted Cloudflare to report a security problem with their edge servers.

Tcpdump cheat sheet
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Tcpdump cheat sheet

Tcpdump is a common packet analyzer that runs under the command line. It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. Distributed under the BSD license, tcpdump is free software.

Web server performance benchmark for FREE
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Web server performance benchmark for FREE

Sometimes you need to find out what is average response time of your website. Such information is very useful and can lead you to optimize and tune your web-server for better performance. In the article we will introduce you possibilities how to make benchmark of your web-server for free.

IPsec cheat sheet #1
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IPsec cheat sheet #1

Find a very useful cheat sheet of well-known Internet Protocol Security (IPsec) – a protocol suite for secure Internet Protocol (IP) communications that works by authenticating and encrypting each IP packet of a communication session.