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Spamcalc takes a hostname or a list of hostnames and determines a dns spam score for each hostname. This value is an indication for the spam-ness of the hostname. The higher the score, the higher the chance that the hostname is actually a dns spam hostname. Hostnames that are considered dns spam are hostnames with (a part of) a sentence in them (master.of.the.world.net), swearwords (shittywhore.armaster.roadkill.net) and other forms of unwanted textual data (666666666666666666666666666666666.sixtysix.org, 0-1-2-3-4-5.blah.com).

POE::Component::IRC::Plugin::QueryDNS is a POE::Component::IRC plugin that provides DNS query facilities to the channels it occupies and via private messaging. It uses POE::Component::Client::DNS to do non-blocking DNS queries. By default the plugin attempts to use POE::Component::IRC's internal PoCo-Client-DNS resolver object, but will spawn its own copy. You can supply your own resolver object via the constructor.

Given SNMP-capable routers and switches, sdig can turn an IP address, DNS/WINS host name or a MAC address into a port description.

mdns-repeater is a Multicast DNS repeater. Multicast DNS uses the 224.0.0.51 address, which is "administratively scoped" and does not leave the subnet. This program re-broadcast mDNS packets from one interface to other interfaces. It can be used to bridge zeroconf devices to work properly across the two subnets.

Hawk is a web based utility for monitoring and comparing hosts on your network with what is in DNS. Hosts that are answering pings but are not in DNS may be unauthorized, and addresses in DNS which are not answering may be able to be reclaimed. Hawk monitors all hosts on the networks you specify and lets you view them via a web page. Hawk consists of a backend written in Perl that monitors hosts by ICMP pings and writes the status to a mysql database. The frontend is in PHP and lets you select which network to view, and how to view it. This version has several enhancements to the original; including cleaner Perl code, a user-definable string to designate unused addresses that are in DNS, testing that the forward and reverse hostnames match, and the daemon forks one process pre subnet.

Libdnsres provides a non-blocking thread-safe API for resolving DNS names. It requires that your main application is built on top of libevent. Libdnsres' API essentially mirrors the traditional gethostbyname and getaddrinfo interfaces. All return values have been replaced by callbacks instead. The code borrows heavily from the BSD resolver library. In fact, it is an extremely ugly hack to make the BSD resolver library non-blocking and thread-safe without changing the API too much.

Namecoin is an open source decentralized key/value registration and transfer system based on Bitcoin technology (a decentralized cryptocurrency). It allows you to: * Securely register and transfer arbitrary names (keys), no possible censorship! * Attach values (data) to the names (currently up to 520 bytes, will be extended) * Trade and transact namecoins, the digital currency NMC To register a name, you must own some namecoins (NMC, the internal cryptocurrency used by the software).

Torbutton is a 1-click way to enable or disable the use of Tor. It adds a panel to the statusbar that says "Tor Enabled" (in green) or "Tor Disabled" (in red). The user may click on the panel to toggle the status. If the user (or some other extension) changes the proxy settings, the change is automatically reflected in the statusbar. Some users may prefer a toolbar button instead of a statusbar panel. Such a button is included, and one adds it to the toolbar by right-clicking on the desired toolbar, selecting "Customize...", and then dragging the Torbutton icon onto the toolbar. There is an option in the preferences to hide the statusbar panel (Tools->Extensions, select Torbutton, and click on Preferences). Newer Firefox versions have the ability to send DNS resolves through the socks proxy, and Torbutton will make use of this feature if it is available.

Toolbox netwox helps to find and solve network problems : - sniff, spoof - clients, servers - DNS, FTP, HTTP, IRC, NNTP, SMTP, SNMP, SYSLOG, TELNET, TFTP - scan, ping, traceroute