Linux System Admins Blog

System admins of Promet – an e-commerce, high availability Open Source web shop – share their findings

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How to check if your DNS server implements source port randomization

December 2nd, 2008 · 1 Comment

The Domain Name System (DNS) is responsible for translating host names to IP addresses (and vice versa) and is critical for the normal operation of internet-connected systems. DNS cache poisoning (sometimes referred to as cache pollution) is an attack technique that allows an attacker to introduce forged DNS information into the cache of a caching [...]

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Tags: Centos · Security · sysadmin