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IPTraf - http://iptraf.seul.org/
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. |
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CIPE - http://sites.inka.de/sites/bigred/devel/cipe.html
A Crypto IP Encapsulation project. Offers a protocol that passes encrypted packets between prearranged routers in the form of UDP packets. |
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COLD - http://www.ipv4.it/cold/
Protocol LAN analyzer that can monitor various interfaces: ISDN, PPP, Token Ring, standard: loopback, 10baseT Ethernet. |
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DeleGate - http://www.delegate.org/delegate/
An application-level gateway server. |
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Dante - http://www.inet.no/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. |
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DrawBridge - http://drawbridge.tamu.edu/
A BSD-based firewall with source included. This binaries main value is that it is perfect for beginners learning how firewalls are developed. |
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Razorback - http://www.intersectalliance.com/projects/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. |
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Mason - http://mason.stearns.org/
Tool that interactively builds a firewall using ipfwadm, ipchains, or netfilter/iptables firewalling. [GPL] |
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ippl - IP Protocols Logger - http://pltplp.net/ippl/
Performs logging of incoming IP packets by utilizing a multi-threaded approach. Administrators can perform filtering of captured packets. |
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COPS - http://www.trouble.org/cops/
The famed Computer Oracle and Password System is a suite of tools that can automatically detect configuration problems or holes in your system. |
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Deception Toolkit - http://all.net/dtk/download.html
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. |
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CTC - http://www.bifroest.demon.co.uk/ctc/
Freeware PGP, Pretty Good Privacy interoperable encryption software package. CTC is Rot13 for PGP. |
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ipgrab - http://ipgrab.sourceforge.net/
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. |
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EPAN - Ethernet Protocol Analyzer - http://www.et-inf.fho-emden.de/~tobias/epan/
A protocol analyzer that supports ethernet, Token Ring, SLIP, PPP, ISDN, and loopback. |
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icmpquery - http://www.angio.net/security/
icmpquery is a tool for sending and receiving ICMP queries for the destinations address mask and current time. |