Stunnel is a program that allows you to encrypt arbitrary TCP connections inside SSL (Secure Sockets Layer) available on both Unix and Windows. Stunnel can allow you to secure non-SSL aware daemons and protocols (like POP, IMAP, NNTP, LDAP, etc) by having Stunnel provide the encryption, requiring no changes to the daemon's code.
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Ippl is a configurable IP protocols logger. It currently logs incoming ICMP messages, TCP connections and UDP datagrams. It is configured with Apache-like rules and has a built-in DNS cache. It is aimed to replace iplogger.
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XScreenSaver is a modular screen saver and locker for the X Window System. It is highly customizable and allows the use of any program that can draw on the root window as a display mode. It is also more stable than xlock.
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Zorp is a new-generation modular proxy firewall suite to fine tune proxy decisions with its built in script language, fully analyze complex protocols (like SSH with several forwarded TCP connections), and utilize out of band authentication techniques (unlike common practices where proxy authentication had to be hacked into the protocol).
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