Tcpdump

Simkl Tray gives you easy access to Simkl IM History Viewer from your PC. Simkl allows you to consolidate all your IMs - ICQ, AIM, Yahoo, or MSN. Simkl is a Web application that collects all your instant messaging conversations into one convenient, searchable archive which can be accessed... Platforms: Windows, Mac, *nix, Windows CE, Pocket PC

Audit security of your wireless networks and recover WPA/WPA2 passwords with Elcomsoft Wireless Security Auditor. In addition to the CPU-only mode, the new wireless password recovery tool features a patent-pending GPU acceleration technology to speed up password recovery if compatible NVIDIA or... Platforms: Windows

The Firewall Tester (FTester) is a tool designed for testing firewalls filtering policies and Intrusion Detection System (IDS) capabilities.The tool consists of two perl scripts, a packet injector (ftest) and the listening sniffer (ftestd). The first script injects custom packets, defined in... Platforms: *nix

FTester (The Firewall Tester) is a tool designed for testing firewalls filtering policies and Intrusion Detection System (IDS) capabilities. The tool consists of two perl scripts, a packet injector (ftest) and the listening sniffer (ftestd). The first script injects custom packets, defined in... Platforms: *nix

pcapsipdump is libpcap-based SIP sniffer with per-call sorting capabilities. It writes SIP/RTP sessions to disk in a same format, as "tcpdump -w", but one file per SIP session (even if there is thousands of concurrent SIP sessions). Platforms: *nix

TCFS project is a cryptographic network file system featuring group sharing of encrypted files. TCFS will encrypt your files before sending them to the file server and will decrypt them before they are read by the requesting application. Because the encryption/decryption process takes place on... Platforms: *nix

pktstat displays a real-time list of active connections seen on a network interface, and how much bandwidth is being used. Partially decodes HTTP and FTP protocols to show what filename is being transferred. X11 application names are also shown. Entries hang around on the screen for a few... Platforms: *nix

Web Interface for SIP Trace is a PHP Web Interface that permits you to connect on a remote host/port and listen/filter. Web Interface for SIP Trace was born as a prof concept of the idea to capture SIP traffic from a remote host (SIP Proxy, Gateway, etc) and show up alive SIP messages about an... Platforms: *nix

ssldump is an SSLv3/TLS network protocol analyzer. It identifies TCP connections on the chosen network interface and attempts to interpret them as SSLv3/TLS traffic. When it identifies SSLv3/TLS traffic, it decodes the records and displays them in a textual form to the console. ssldump depends... Platforms: *nix

Firewall Monitor allows you to monitor ipchains/iptables output in realtime. It supports both logging to a file/stdout and/or to tcpdump format capture logs. It also supports security features such as running non-root, and chrooting itself. Fwmon can easily be integrated into an existing... Platforms: *nix

pdumpq provides a pcap Dump for Linux/Netfilter QUEUE. pdumpq can be used to take queued packets from netfilter/iptables and dump them to a file that decoders like tcpdump, ethereal, and snort can read. You can also just pipe it through to the packet decoder and see what is in those packets... Platforms: *nix

acoc is a regular-expression based colour formatter for programs that display output on the command-line. It works as a wrapper around the target program, executing it and capturing the stdout stream. Optionally, stderr can be redirected to stdout, so that it, too, can be manipulated. acoc then... Platforms: *nix

tcpflow is a program that captures data transmitted as part of TCP connections, and stores the data in a way that is convenient for protocol analysis or debugging. A program like tcpdump shows a summary of packets seen on the wire, but usually doesnt store the data thats actually being... Platforms: *nix

TNV stands for The Network Visualizer or Time-based Network Visualizer and depicts network traffic by visualizing packets and links between local and remote hosts. TNV is intended for network traffic analysis to facilitate learning what constitutes normal activity on a network, investigating... Platforms: *nix

ngrep project strives to provide most of GNU greps common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular or hexadecimal expressions to match against data payloads of packets. It currently recognizes TCP, UDP, ICMP, IGMP... Platforms: *nix

EtherApe is a graphical network monitor for Unix modeled after etherman. Featuring link layer, IP and TCP modes, it displays network activity graphically. Hosts and links change in size with traffic. Color coded protocols display. It supports Ethernet, FDDI, Token Ring, ISDN, PPP, SLIP and WLAN... Platforms: Mac

ltraf is a simple utility to list traffic flowing through a computers network interface. It can categorize the traffic based on bpf rules. It uses libpcap to capture network traffic. The main goal of the project is to give systems administrators a chance to visualize the traffic flow through a... Platforms: *nix

Pixilate is a commandline packet generation utility that reads Cisco PIX 6.2x or Cisco IOS ACLs as input and generates the appropriate packets. pixilate is currently capable of generating TCP/UDP/ICMP (various ICMP types), and IGMP utilizing the Libnet 1.1.x library available from... Platforms: *nix

ipaudit-web logs network activity, maintains traffic summaries, and presents Web-accessible graphs and reports. ipaudit-web logs network activity, maintains traffic summaries, and presents Web-accessible graphs and reports. It is useful for identifying heavy bandwidth users, DoS attacks, and... Platforms: *nix

VPNmonitor is a free Java tool to observe network traffic. Network administrators can use it to monitor VPN (PPTP and IPSec) and SSL (HTTPS) connectivity of wireline/wireless networks. If you are using Linux this way you will run VPNmonitor: 1. Install libpcap 0.7.2 or above from... Platforms: *nix