See also:

• Computers: Security: Products and Tools  (625)

• ADMsmb - A network scanner that detects Microsoft Windows shares using the SMB protocol.
• Arping - A set of network diagnostic tools, such as an enhanced replacement for traceroute.
• BitDefender Linux Edition v.7.0 (for Workstations) - Free effective anti-virus security solution for systems running Linux; free updates of all signature files and high scanning speed.
• Central Command - Vexira Antivirus Solutions - Vexira Antivirus for Linux workstations and servers. A complete virus defense system designed for easy and dependable virus prevention on Linux systems.
• CIPE - A Crypto IP Encapsulation project. Offers a protocol that passes encrypted packets between prearranged routers in the form of UDP packets.
• Cistron RADIUS Server - An authentication and accounting server for terminal servers that speak the RADIUS protocol.
• COLD - Protocol LAN analyzer that can monitor various interfaces: ISDN, PPP, Token Ring, standard: loopback, 10baseT Ethernet.
• COPS - The famed Computer Oracle and Password System is a suite of tools that can automatically detect configuration problems or holes in your system.
• CTC - Freeware PGP, Pretty Good Privacy interoperable encryption software package. CTC is Rot13 for PGP.
• Dante - A circuit-level firewall and proxy that can be used to provide convenient and secure network connectivity to a wide range of hosts. Very similar to a SOCKS implementation.
• Deception Toolkit - Performs emulation of other operating systems and vulnerabilities not found on the host; in order to deceive and solicit invaild attempts of exploitation by malicious individuals.
• DeleGate - An application-level gateway server.
• DNI - Adds the ability for a network administrator to set packet filtering rules via a web page interface. unsecure from an external source, but very easy to use for intranet management.
• DrawBridge - A BSD-based firewall with source included. This binaries main value is that it is perfect for beginners learning how firewalls are developed.
• EPAN - Ethernet Protocol Analyzer - A protocol analyzer that supports ethernet, Token Ring, SLIP, PPP, ISDN, and loopback.
• Etherboot - Free software package for booting x86 PCs over networks.
• Fake - Allows the user to take over the IP address of another machine in the user's LAN via ARP spoofing.
• FreeTDS - Free Tabular DataStream package. Tabular DataStream is a client-to-database server protocol in SyBase and Microsoft SQL database implementations.
• GNUPG- Gnu Privacy Guard - An open source OpenPGP compatible encryption system. Provides data integrity services for messages and data files by using digital signatures, encryption, and compression.
• Hping - A network scanner that uses spoofed source address packets. Mainly used to test firewall rules and to perform advanced TCP/IP related attacks like the idle scan.
• icmpquery - icmpquery is a tool for sending and receiving ICMP queries for the destinations address mask and current time.
• IP Filter - TCP/IP Packet Filtering package - An advanced TCP/IP packet filter suitable for use in firewall environments. Can be loaded as a module or compiled into the kernel.
• ipgrab - A packet sniffing tool, based on the Berkeley packet capture library; that prints complete data-link, network, and transport layer header information for all packets it sees.
• ippl - IP Protocols Logger - Performs logging of incoming IP packets by utilizing a multi-threaded approach. Administrators can perform filtering of captured packets.
• IPTraf - IPTraf is a console-based network statistics utility that gathers TCP connection paket and byte counts, interface statistics, and activity indicators. Also captures all TCP/UDP packets.
• JunkBuster - Freeware for Unix/Linux/FreeBSD/OS2/BeOS/Windows 95/98/ME/NT4. Web proxy that filters banner ads, cookies, and referer tracking. Supports wafers and User-Agent spoofing.
• Linux-PAM - Linux Pluggable Authentication Modules (PAM) is a flexible mechanism for authenticating users using alternative authentication schemes.
• Mason - Tool that interactively builds a firewall using ipfwadm, ipchains, or netfilter/iptables firewalling. [GPL]
• Razorback - A log analysis program that interfaces with the SNORT open source Intrusion Detection System to provide real time visual notification when an intrusion signature has been detected on the network.
• Stadrin - Strong user authentication and access control for Linux environments in a fully integrated system using PAM modules.