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sslh accepts HTTPS, SSH, OpenVPN, tinc and XMPP connections on the same port. This makes it possible to connect to any of these servers on port 443 while still serving HTTPS on that port.

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.

A set of two tools to URL encode and URL decode any stream of data, either from the command line or from standard input. See RFC 1738, section 2.2, for an eplanation of URL encoding.

Wackamole is an application that helps with making a cluster highly available. It manages a number of virtual IPs, that should be available to the outside world at all times. Wackamole ensures that a single machine within a cluster is listening on each virtual IP address that Wackamole manages. If it discovers that any particular machine within the cluster are not alive, it will almost immediately ensure that other machines acquire their public IPs. At no time will more than one machine listen on any virtual IP. Wackamole also works toward achieving a balanced distribution of the numbered IPs on the machine within the cluster it manages.

widentd is a small ident/RFC1413 deamon which provides a fixed (and fake) auth reply, regardless of the IP/port pair quoted. It's intended use is on firewalls, and NAT machines - where you may want to simply syphon off auth-requests from, for example, IRC servers. Author: Dirk-Willem van Gulik / dirkx@webweaving.org

Xrdesktop2 is a GTK2-Perl frontend for Rdesktop, which allows for the saving, and editing of session configurations. Xrdesktop2's intent is to handle Rdesktop's available commandline options, by presenting them in a [Perl/GTK2] GUI. Xrdesktop2 currently handles most any of the options you're likely to be interested in. Future versions will undoubtedly add more.

tcpstat reports certain network interface statistics (such as bandwidth) much like vmstat does for system statistics. It gets its information by either monitoring a specific interface, or by reading previously-saved tcpdump data from a file. It has been tested under Linux, Solaris, FreeBSD, NetBSD, and BSD/OS.

This program is used to fetch the GeoIP2 and GeoIP databases. It requires an active GeoIP subscription. Please see https://www.maxmind.com/en/geolocation_landing for details about obtaining a subscription. If you wish to install the free versions of the GeoIP databases, please use the geoipudate.sh script provided in net/GeoIP.

libnss-cache is a NSS module for reading directory service information for hosts from an indexed, local disk cache of that directory service. nsswitch.conf services provided: passwd and group Add 'nsscache' to the desired service(s) and generate the cache with the net/nsscache port.

IO::Interface adds object-methods to IO::Socket objects to allow them to get and set operational characteristics of network interface cards, such as IP addresses, net masks, and so forth. It is useful for identifying runtime characteristics of cards, such as broadcast addresses, and finding interfaces that satisfy certain criteria, such as the ability to multicast.