Stunnel
Stunnel is a Universal SSL Wrapper, encrypting arbitrary TCP connections inside SSL. Stunnel secures
Sudo
Sudo is a program that provides limited root privileges to specified users, and logs the root activity.
Tcpdump
Tcpdump is a network monitoring tool.
Tripwire
Tripwire software is a security and data integrity tool used to monitor and alert administrators of specific file changes on a range of systems.
UDDI4J
UDDI4J is a Java class library that provides an API to interact with a Universal Description, Discovery and Integration (UDDI) registry.
UW-IMAP
Wireshark
The Ethereal network protocol analyzer has changed its name to Wireshark.
Xalan-C
XDoclet
XDoclet is an extended Javadoc Doclet engine and an open source code generation engine.