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tcptrace is a TCP connection analysis tool. It can tell you detailed information about TCP connections by sifting through dump files. The dump file formats supported are: Standard tcpdump format (you need the pcap library) Sun's snoop format Macintosh Etherpeek format HP/NetMetrix protocol analysis format NS simulator output format NetScout NLANR Tsh Format To see the graphs, you'll also need Tim Shepard's xplot program, available at http://www.xplot.org

TCPWatch is a utility written in Python that lets you monitor forwarded TCP connections or HTTP proxy connections. It displays the sessions in a window with a history of past connections. It is useful for developing and debugging protocol implementations and web services.

tcptraceroute is a traceroute implementation using TCP packets. The more traditional traceroute(8) sends out either UDP or ICMP ECHO packets with a TTL of one, and increments the TTL until the destination has been reached. By printing the gateways that generate ICMP time exceeded messages along the way, it is able to determine the path packets are taking to reach the destination. The problem is that with the widespread use of firewalls on the modern Internet, many of the packets that traceroute(8) sends out end up being filtered, making it impossible to completely trace the path to the destination. However, in many cases, these firewalls will permit inbound TCP packets to specific ports that hosts sitting behind the firewall are listening for connections on. By sending out TCP SYN packets instead of UDP or ICMP ECHO packets, tcptraceroute is able to bypass the most common firewall filters.

tcpxd is a general purpose TCP/IP relay program designed to be simple to get going, requiring only three parameters; the port to listen on, the host to forward to, and the port on that host to connect to.

tdetect detects someone running traceroute against your system. It does this by detecting UDP (Unix traceroute) or ICMP ECHO (Windows traceroute) packets with TTL fields == 1.

Enhanced version of VNC, called TightVNC (grown from the VNC Tight Encoder project), which is optimized to work over slow network connections such as low-speed modem links. While original VNC may be very slow when your connection is not fast enough, with TightVNC you can work remotely almost in real time in most environments. Besides bandwidth optimizations,TightVNC also includes many other improvements, optimizations and bugfixes over VNC. Note that TightVNC is free, cross-platform and compatible with the standard VNC.

The collection of minimalistic network server implementations to support virtual machine network connectivity: DHCP, UDP proxy, UDP anti-NAT.

TinyFugue is a powerful, programmable MUD client with macro support and multi-worlding support and much more. -Mike Peck mike@binghamton.edu