The stunnel program is designed to work as an SSL encryption wrapper between remote client and local (inetd-startable) or remote server. It can be used to add SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the programs' code. It will negotiate an SSL connection using the OpenSSL or SSLeay libraries. It calls the underlying crypto libraries, so stunnel supports whatever cryptographic algorithms you compiled into your crypto package.
CensorNet Professional is a Web filtering and Internet management tool that is designed to protect, control, and monitor individuals accessing Internet resources on a local area network. It features the ability to control users and machines, group policies, time quotas, realtime content filters (by file extension or image/MIME type), modules, comprehensive reporting with audit trails and management reports, access schedules, and bandwidth limitations. Transparent authentication with Active Directory is available for ease of deployment. Administration can been done using a Web interface.
VideoCache is a squid URL rewriter plugin written in Python that traps the requests to Squid for various audio/video Web sites and caches the audio/video in the local storage on a proxy server for serving subsequent requests for the same audio/video. It caches the audio/video independently of Squid's caching system. The cached files are stored in a browsable fashion.