Internet Assigned Numbers Authority • Domains • Protocols • Numbers • About Generic Security Service Application Program Interface (GSSAPI)/Kerberos/Simple Authentication and Security Layer (SASL) Service Names Last Updated 2021-08-26 Available Formats [IMG] XML [IMG] HTML [IMG] TXT Registry Included Below • GSSAPI/Kerberos/SASL Service Names GSSAPI/Kerberos/SASL Service Names Registration Procedure(s) Specification Required Expert(s) Unassigned Reference [RFC 2743] Note A service is a resource provided to network clients; often provided by more than one server and potentially by more than one protocol. Service names are short alphanumeric textual strings. Service names are used in the GSSAPI [RFC 2743] host-service name form, are specified as part of a SASL profile [RFC 4422] and are used by Kerberos service-based tickets [RFC 1510]. Registrations are restricted to alphanumeric characters and the characters '+', '-' and '.' Available Formats [IMG] CSV Service Name Usage Reference rcmd remote command/rlogin/telnet host generic host-based service [RFC 2743] imap mailstore access/IMAP4 [RFC 3501]; [RFC 9051] pop maildrop access/POP3 [RFC 5034] acap remote configuration access/ACAP [RFC 2244] nfs distributed file system protocol [RFC 2623]; [RFC 7530]; [RFC 8881] ftp file transfer/FTP/TFTP [RFC 2228] ldap Lightweight Directory Access Protocol (LDAP) [RFC 4510]; [RFC 4513] smtp message transfer/SMTP [RFC 4954] beep Blocks Extensible Exchange Protocol [RFC 3080] mupdate Mailbox Update (MUPDATE) Protocol [RFC 3656] sacred Secure Available Credentials (SACRED) Protocol [RFC 3767] sieve ManageSieve Protocol [RFC 5804] xmpp Extensible Messaging and Presence Protocol (XMPP) [RFC 6120] nntp Network News Transfer Protocol (NNTP) [RFC 4643] Licensing Terms