PyLoris is a tool for testing a web server's vulnerability to a particular class of Denial of Service (DoS) attacks. It uses the Slowloris method; by using all available connections, web servers cannot complete valid requests.
Highly configurable HTTP connection consuming DoS
GET, POST, HEAD and other headers supported
SOCKS4 and SOCKS5 proxies supported
Written in Python
Cross Platform; supported on Windows, Linux, and Mac OS X
Download the latest version of PyLoris here or see more info here