.csnet
From Wikipedia, the free encyclopedia
| Introduced | 1985 |
|---|---|
| TLD type | Pseudo-domain-style address suffix |
| Status | Formerly used in addresses and site names |
| Registry | No longer exists |
| Sponsoring organization | CREN |
| Intended use | To designate an address or hostname connected via CSNET |
| Actual use | Was widely used in late 1980s, but is no longer in use |
| Registration restrictions | No registrations are possible, as this domain is not in the root |
| Structure | Appended to right of CSNET hostnames |
| Documents | |
| Dispute policies | |
| Web site |
.csnet was a pseudo-domain-style suffix used in the late 1980s when identifying a hostname not connected directly to the Internet but possibly reachable through inter-network gateways. In this case, it indicated that the hostname preceding it was reachable via the CSNET network. This was one of several apparent "top-level domains" that were not actually in the Internet root, but were sometimes used in addresses during the time when non-Internet networks remained in wide use. Of these, .arpa was the only one ever actually added to the Internet root, where it continues to exist in a redesignated purpose of "Address and Routing Parameter Area".
| Generic top-level domains | ||
|---|---|---|
| Unsponsored | .biz .com .edu .gov .info .int .mil .name .net .org | |
| Sponsored | .aero .cat .coop .jobs .mobi .museum .pro .travel | |
| Infrastructure | .arpa .root | |
| Startup phase | .asia .tel | |
| Proposed | .cym .geo .kid .kids .mail .post .sco .web .xxx | |
| Deleted/retired | .nato | |
| Reserved | .example .invalid .localhost .test | |
| Pseudo-domains | .bitnet .csnet .local .onion .uucp | |
| Unofficial | see Alternative DNS roots | |
| See also: Country code top-level domains | ||
