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Recvnet is the inverse of telnet. Instead of connecting to some host, it listens on a port for incoming connections. When a connection is made, you can type a response which will be sent to the client. This tool has proven to be very useful while debugging Web browsers, httping, and others.

PPPoE (Point-to-Point Protocol over Ethernet) is a protocol used by many ADSL service providers. Roaring Penguin's PPPoE software is a reliable program for connecting Unix systems to PPPoE service providers without requiring any kernel patches. Note that this port has had little testing (it works on 5-CURRENT to access T-Online in Germany from the client side) and the server side is entirely untested.

The AdaSockets library allows the use of BSD sockets from within an Ada program. It is limited to IP version 4 sockets (TCP, UDP, multicast). It is released under the GNAT Modified General Public License, which means AdaSockets can be freely used in proprietary applications without affecting their licenses.

This is a small sample cross-platform networking library, with a sample chat client and server application. The chat client uses the GUIlib GUI framework library.

Socketpipe connects over a TCP/IP socket a remote command to a local input generation command and/or a local output processing command. The connection is made by redirecting the input/output file descriptors to the socket. This saves the context switching and data copying overhead associated with piping data through ssh(1) or rsh(1). Socketpipe must be installed on both machines and user authentication is still performed by a command like ssh(1) or rsh(1). The confidentiality and integrity of the data in transit is not protected against mallicious attacks; the command is designed for use in a trusted LAN environment.

ssmping is a tool for checking whether a host can receive SSM from another. If a host runst ssmpingd, users on other hosts can check that they receive from this host by running the ssmping tool. asmping is similar to ssmping, but checks for ASM rather than SSM.

A Yadis Service discovery library written in pure Ruby. ruby-yadis contains full yadis service discovery functionality. Point releases will be issued as the Yadis 1.0 specification gets rounded out. Features include: * Easy to use interface for fetching Yadis service information * XRDS parser * HTTPS and server certificate verification support * Test suite * BSD license

tcping does a TCP connect to the given ip/port combination. The user can specify a timeout in seconds. This is useful in shell scripts running in firewalled environments. Often SYNs are just being dropped by firewalls, thus connection establishment will be retried several times (for minutes) until a TCP timeout is reached. With tcping it is possible to check first if the desired port is reachable and then start connection establishment.

TCPreen is a simple tool to monitor and analyze data transmitted between a client and a server via a TCP connection. This tool focuses on the data stream (software/socket layer), not on the lower level transmission protocol as packet sniffers do. Janos Mohacsi <janos.mohacsi@bsd.hu>

throttled is a bandwidth shaping application for FreeBSD which allows you to cap your upstream bandwidth, prioritize ACK packets, and keep your download speeds high even when your server is sending out at full speed. It uses almost no cpu, and has a tiny footprint. Enjoy. For more information you can read the comments in throttled-startup