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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 通过一键点击的方式来启用和禁用 Tor。它向状态栏添加一个面板，“Tor Enabled” （绿色）或“tor Disabled”（红色）。用户可以点击来切换状态。如果用户（或者是其他扩展）改 变了代理设置，改变会自动反映在状态栏上。 有些用户也许会选择一个工具栏按钮，而不是一个状态栏面板。这样的按钮已经包含在内了，要添加 它可以在工具栏上右击，选择“定制....”，然后拖动 Torbutton 图标到工具栏上。在首选项里有 一个选择用来隐藏状态栏面板（工具->附加软件，选择 Torbutton，点击首选项）。 较新版本的 Firefox 能通过 socks 代理来发送 DNS 解析，如果该特性可用，Torbutton 也会 利用这一特性。 Author: Scott Squires

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