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Despite this, .su is still in use. Most of the .su domains are registered in Russia and the United States. [11] According to the RU-CENTER data from May 2010, there were over 93,500 registered domains with the .su TLD (there are over 2.8 million .ru domains). [12] Some organizations with roots in the former Soviet Union also still use this TLD. [6]
su This obsolete ISO 3166 code for the Soviet Union was assigned when the Soviet Union still existed; moreover, new su registrations are accepted. ac ( Ascension Island ): This code is a vestige of IANA's decision in 1996 to allow the use of codes reserved in the ISO 3166-1 alpha-2 reserve list for use by the Universal Postal Union .
[1] Domain names are managed under a hierarchy headed by the Internet Assigned Numbers Authority (IANA), which manages the top of the DNS tree by administrating the data in the root nameservers . IANA also operates the int registry for intergovernmental organizations, the arpa zone for protocol administration purposes, and other critical zones ...
In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. [1]
WHOIS client and server software is distributed as free open-source software and binary distributions are included with all Unix-like systems. Various commercial Unix implementations may use a proprietary implementation (for example, Solaris 7). A WHOIS command line client passes a phrase given as an argument directly to the WHOIS server.
This depends on whether IO is removed from the ISO 3166-1 standard. [ 18 ] [ 19 ] [ 20 ] Historically, some exceptions have been granted, as was the case for .su . [ 19 ] The deal was put on hold following the 2024 United States presidential election to allow consideration from the new incoming administration .
If the whois information had been out of date and is now updated, the end-user should wait 12–24 hours before proceeding further, to allow time for the updated data to propagate. The end user contacts the new registrar with the wish to transfer the domain name to their service, and supplies the authentication code.
WHOIS++ was devised as an extension to the pre-existing WHOIS system. [2] WHOIS was an early networked directory service, originally maintained by SRI International for the Defense Data Network . The WHOIS protocol is still widely used to allow domain ownership records in the Internet to be easily queried.