Fast NTLM authentication proxy with tunneling.
Cntlm is an NTLM / NTLMv2 authenticating HTTP/1.1 proxy. It caches auth'd connections for reuse, offers TCP/IP tunneling (port forwarding) thru parent proxy and much much more. It's in C, very fast and resource-efficient.
This fork is based on the original CNTLM code (http://cntlm.sf.net/), however it includes extra patches as kerberos authentication and fixes on the http stack.