Three days ago, KingCope released a simple Perl script to DoS Apache, aptly named Apache Killer.
This script launches about 50 threads to request Partial Content from the server with optional GZIP encoding. This either will consume too much memory that the OS has to kill all other processes, or too much CPU that the server is brough to its knee.
Apache Foundation has not yet released a patch.
What is the best way to combat this?