Chaosmap is an information gathering tool and DNS, Whois, and Web server scanner. It can be used to look up DNS names with a dictionary with or without using a salt. Salting for DNS means it will append numbers from 1-9 to the name in the dictionary with or without a - and _ or a leading 0. Salting for Web stuff will try double slashes and some directory traversal tricks. It performs reverse DNS lookups of a whole IP range (with optional Whois lookup) and dictionary scans for hidden paths on one Web server or a range of IP addresses. Optionally you can encode a path with URL encoding use Google dict lookup mode to find the path on Google and only query the Webserver if there are no search results. It can also extract email addresses from domains using a Google search or perform a list of Google Hacking queries on your domain.
Net::DRI is an object-oriented Perl library with a uniform API to access services from domain name registries/registrars/resellers. With protocols (RRI, RRP, EPP, and XCP), it handles EU, BE, SE, PL, WS, MOBI, AERO, CAT, US, COM, NET, ORG, BIZ, INFO, COOP, LU, AT, FR, NAME, NU, ASIA, TV, CC, AU, UK, NO, DE, CH, LI, HN, SC, VC, AG, BZ, LC, MN, ME, CZ, TRAVEL, PRO, JOBS, BR, PT, SI, IM, IT, CO.CZ, TC, VG, GD, NL, AU, CA, GL, CentralNIC, and CoCCA, all with extensions. It can also perform Whois queries, domain availability checks (DAS), ENUM registrations (IENUM +43) and validations, IRIS DCHK (RFC 3981 and 5144) for .DE, and operations through the APIs of BookMyName, OVH, Gandi, AdamsNames, and OpenSRS. It also includes a shell to leverage all its power without a single line of code. It has a flexible and robust logging framework, and handles internationalization issues, DNSSEC, and IPv6.