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C-Kermit is a combined serial and network communication software package offering a consistent, medium-independent, cross-platform approach to connection establishment, terminal sessions, file transfer, character-set translation, numeric and alphanumeric paging, and automation of communication tasks. Recent versions include FTP and HTTP clients as well as an SSH interface, all of which can be scripted and aware of character-sets. It supports built-in security methods, including Kerberos IV, Kerberos V, SSL/TLS, and SRP, FTP protocol features such as MLSD, and source-code parity with Kermit 95 2.1 for Windows and OS/2.
Ethereal is a network protocol analyzer, or "packet sniffer", that lets you capture and interactively browse the contents of network frames. The goal of the project is to create a commercial-quality packet analyzer for Unix, and the most useful packet analyzer on any platform.
Access Point Utilities for Unix
Access Point Utilities for Unix is a set of utilities that configure and monitor a Wireless Access Point under Unix. It is known to compile (with GCC and the IBM C compiler) and run under Linux, FreeBSD, OpenBSD, MacOS X, AIX, and QNX.
MailScanner is an Email virus scanner and spam tagger. It supports sendmail and Exim MTAs, and the Sophos, McAfee, F-Prot, F-Secure, CommandAV, InoculateIT, Inoculan 4.x, Kaspersky, RAV, and Panda anti-virus scanners. It supports SpamAssassin for highly successful spam identification. It is specifically designed to handle Denial Of Service attacks. It is very easy to install, and requires no changes at all to your sendmail.cf file. It is designed to be lightweight, and won't grind your mail system to a halt with its load. It can be integrated into any email system, regardless of the software in use.
lsh is an implementation of the SSH protocol version 2. It is under active development. Developer contributions are welcome from both inside and outside the US.
Recovery of supposedly erased data from magnetic media is easier than what many people would like to believe. A technique called Magnetic Force Microscopy (MFM) allows any moderately funded opponent recover the last two or three layers of data written to disk. Wipe repeadetly overwrites special patterns to the files to be destroyed, using the fsync() call and/or the O_SYNC bit to force disk access.
Big Brother is a combination of monitoring methods. Unlike SNMP where information is just collected and devices polled, Big Brother is designed in such a way that each local system broadcasts its own information to a central location. Simultaneously, Big Brother also polls all networked systems from a central location. This creates a highly efficient and redundant method for proactive network monitoring.
Pidentd v3 is a much improved version of the original Ident daemon both in terms of speed, code quality and features. Features include multithreading, a "configure" script, startup autodetection, much clearer/rewritten C code, doesn't run as root after startup, has a configuration file and can be started from /etc/inittab (on systems using a SysV init).
Webmin Usermonitor is a Webmin module that allows you to view all user connections to the system which are based on Telnet, SSH, or Samba. It is able to kill a user's connection or send a message to the user.
Steghide is steganography program which hides bits of a data file in some of the least significant bits of another file in such a way that the existence of the data file is not visible and cannot be proven. Steghide is designed to be portable and configurable and features hiding data in bmp, wav and au files, blowfish encryption, MD5 hashing of passphrases to blowfish keys, and pseudo-random distribution of hidden bits in the container data.
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