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This is a list of the oldest extant registered generic top-level domains used in the Domain Name System of the Internet. Until late February 1986, Domain Registration was limited to organizations with access to ARPA. Public registration was revealed on Usenet on February 24, 1986. [1]
It was founded as WebEx in 1995 and acquired by Cisco Systems in May 2007. Its headquarters are in San Jose, California. [2] Its software products include Webex App, Webex Suite, Webex Meetings, Webex Messaging, Webex Calling, Webex Contact Center, and Webex Devices. [3] All Webex products are part of the Cisco Systems collaboration portfolio. [4]
Yahoo!, once one of the most popular web sites in the United States, is as of September 2021 a content sub-division of the namesake company Yahoo Inc., owned by Apollo Global Management (90%) and Verizon Communications (10%). It has offered a wide range of online sites and services since its inception in 1994, a majority of which are now defunct.
This list of Internet top-level domains (TLD) contains top-level domains, which are those domains in the DNS root zone of the Domain Name System of the Internet.A list of the top-level domains by the Internet Assigned Numbers Authority (IANA) is maintained at the Root Zone Database. [1]
The JID is structured like an email address with a username and a domain name (or IP address [6]) for the server where that user resides, separated by an at sign (@) - for example, “alice@example.com“: here alice is the username and example.com the server with which the user is registered.
A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database. The most common types of records stored in the DNS database are for start of authority ( SOA ), IP addresses ( A and AAAA ), SMTP mail exchangers (MX), name servers (NS), pointers for reverse DNS ...
Cisco Systems, Inc. (using the trademark Cisco) is an American multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, software, telecommunications equipment and other high-technology services and products. [4]
OpenDNS is an American company providing Domain Name System (DNS) resolution services—with features such as phishing protection, optional content filtering, and DNS lookup in its DNS servers—and a cloud computing security product suite, Umbrella, designed to protect enterprise customers from malware, botnets, phishing, and targeted online attacks.