Registry Included Below
Specification Required
Unassigned
A service is a resource provided to network clients; often provided bymore than one server and potentially by more than one protocol.Service names are short alphanumeric textual strings. Service namesare used in the GSSAPI [RFC2743] host-service name form, are specifiedas part of a SASL profile [RFC4422] and are used by Kerberosservice-based tickets [RFC1510]. Registrations are restricted toalphanumeric characters and the characters '+', '-' and '.'
| Service Name | Usage | Reference |
|---|---|---|
| rcmd | remote command/rlogin/telnet | |
| host | generic host-based service | [RFC2743] |
| imap | mailstore access/IMAP4 | [RFC3501][RFC9051] |
| pop | maildrop access/POP3 | [RFC5034] |
| acap | remote configuration access/ACAP | [RFC2244] |
| nfs | distributed file system protocol | [RFC2623][RFC7530][RFC8881] |
| ftp | file transfer/FTP/TFTP | [RFC2228] |
| ldap | Lightweight Directory Access Protocol (LDAP) | [RFC4510][RFC4513] |
| smtp | message transfer/SMTP | [RFC4954] |
| beep | Blocks Extensible Exchange Protocol | [RFC3080] |
| mupdate | Mailbox Update (MUPDATE) Protocol | [RFC3656] |
| sacred | Secure Available Credentials (SACRED) Protocol | [RFC3767] |
| sieve | ManageSieve Protocol | [RFC5804] |
| xmpp | Extensible Messaging and Presence Protocol (XMPP) | [RFC6120] |
| nntp | Network News Transfer Protocol (NNTP) | [RFC4643] |