Information:
Squid offers high-performance proxy caching for Web clients. It supports FTP, Gopher and HTTP requests.
The cache software, available only in source, is more than an order of magnitude faster than other popular Internet cache. It is implemented with non-blocking I/O, keeps meta data and hot objects in VM and caches DNS lookups.
Squid caches can be arranged hierarchically for an improvement in response times and a reduction in bandwidth usage.
