dolphin is a lightweight HTTP proxy server. It is multi-threaded, easy to configure, and easy to use. License: GNU General Public License v2 Changes:
This release added support for multiple threads, epoll, select, and poll, sendfile, mmap, If-Modified-Since GET requests, SIGTERM for shutting the server down, POST, X-FORWARD-FOR, HTTP/1.1 caching, setrlimit for setting the maximum number of open files, and for running as a daemon.