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This program is a domain name server analysis and reporting tool. It checks and reports whether a domain name, hosted by your organization, is still in use, and if so, reports whether your name servers are still the delegated name servers of the domain name in question. Reports are generated both to the console and as HTML output. HTMLs also include information about the MX and WWW records of the domain name. The tool is expected to be of great use for Internet Service Providers who are in need of keeping track of lame dns records.

`dlint' is a Domain Name Server zone verification utility. `dlint' analyzes any DNS zone you specify, and reports any problems it finds by displaying errors and warnings. Then it descends recursively to examine all zones below the given one (this can be disabled with a command- line option). You can run dlint on your own domains, or on somebody else's, because it uses the standard DNS network protocol. Dlint is very useful since most nameservers do no more than syntax-check your database files. Dlint's messages are very informative and suggest ways to fix the problems, not just complain about them.

Multithreaded perl script to enumerate DNS information of a domain and discover non-contiguous IP blocks. OPERATIONS: Get the host's address (A record). Get the nameservers (threaded). Get the MX record (threaded). Perform axfr queries on nameservers and get BIND VERSION (threaded). Get extra names and subdomains via google scraping (google query = "allinurl: -www site:domain"). Brute force subdomains from file, can also perform recursion on subdomain that have NS records (all threaded). Calculate C class domain network ranges and perform whois queries on them (threaded). Perform reverse lookups on netranges ( C class or/and whois netranges) (threaded). Write to domain_ips.txt file ip-blocks.

Fastresolve is a package of programs to process web log files to get DNS and domain ownership information for log analysis. It sends out many queries in parallel, and caches results, for speed. Its DNS resolver is about 10 times as fast as logresolve.pl from the Apache 1.3.9 distribution, and about 50 times as fast as logresolve.c from that distribution. It is 5-20 times as fast as the adnslogres program that comes with the adns library, and about 3 times as fast as jdresolve, which is a Perl program that uses similar algorithms.

This module is used to discover what RBL's are listing a particular IP address. It parallelizes requests for fast response. An RBL, or Realtime Blackhole List, is a list of IP addresses meeting some criteria such as involvement in Unsolicited Bulk Email. Each RBL has its own criteria for addition and removal of addresses. If you want to block email or other traffic to/from your network based on one or more RBL's, you should carefully study the behavior of those RBL's before and during such blocking.

The dnscrypt-proxy provides local service, which can be used directly as your local resolver or as a DNS forwarder, encrypting and authenticating requests using the DNSCrypt [1] protocol and passing them to an upstream server. The DNSCrypt protocol uses high-speed high-security elliptic-curve cryptography and is very similar to DNSCurve [2], but focuses on securing communications between a client and its first-level resolver. While not providing end-to-end security, it protects the local network, which is often the weakest point of the chain, against man-in-the-middle attacks. It also provides some confidentiality to DNS queries. Reference links: 1. https://www.opendns.com/technology/dnscrypt/ 2. http://dnscurve.org

This is the original BSD ex/vi, updated to build and run on modern Unix systems. Compared to most of its many clones, the original vi is a rather small program (~120 KB code on i386) just with its extremely powerful editing interface, but lacking fancy features like multiple undo, multiple screens or syntax highlighting. In other words, it is a typical Unix program that does exactly what it should and nothing more. I intend to preserve this style in maintaining my port, except for changes to achieve POSIX.2 standards compliance, features in the SVR4 versions of vi, and, of course, bug fixes.

GNU Emacs is a self-documenting, customizable, extensible real-time display editor. Users new to Emacs will be able to use basic features fairly rapidly by studying the tutorial and using the self-documentation features. Emacs also has an extensive interactive manual browser. It is easily extensible since its editing commands are written in Lisp. GNU Emacs's many special packages handle mail reading (RMail) and sending (Mail), outline editing (Outline), compiling (Compile), running subshells within Emacs windows (Shell), running a Lisp read-eval-print loop (Lisp-Interaction-Mode), automated psychotherapy (Doctor :-) and many more.

GNU Emacs is a self-documenting, customizable, extensible real-time display editor. Users new to Emacs will be able to use basic features fairly rapidly by studying the tutorial and using the self-documentation features. Emacs also has an extensive interactive manual browser. It is easily extensible since its editing commands are written in Lisp. GNU Emacs's many special packages handle mail reading (RMail) and sending (Mail), outline editing (Outline), compiling (Compile), running subshells within Emacs windows (Shell), running a Lisp read-eval-print loop (Lisp-Interaction-Mode), automated psychotherapy (Doctor :-) and many more. Canna support is contributed by Yuji TAKANO (takachan@running-dog.net).

Heme is intended to be fast and portable console hex editor for Unix-like systems. It has undo support (number of undo operations is only limited by available memory), ability to fill a range of addresses with the specified byte, ability to search for a single byte or character string. Offsets can be given in hexadecimal, octal, or decimal forms. There are two editing modes: hex (binary) and ASCII (text). Heme uses standard curses library for screen and input handling, and offers colors support (they can be set in the configuration file).