[3988] in Kerberos
Re: Telnet Authentication Protocol
daemon@ATHENA.MIT.EDU (Jim.Rees@umich.edu)
Tue Oct 4 20:05:51 1994
To: kerberos@MIT.EDU
Date: 4 Oct 1994 17:59:49 GMT
From: Jim.Rees@umich.edu
In article <Cx4Hp0.Cy3@apertus.com>, mattp@apertus.com (Matt Perry) writes:
However, it appears that in the MIT K4 distribution the bsd apps and the
sample apps do not do any handshaking prior to issuing a krb_recvauth().
Most of the sample apps use a different port for the kerberized version of
the protocol. So rlogin is on port 513, klogin is on 543, pop is on 109,
kpop is on 1109, etc.
Telnet is a bit different. It's not widely implemented yet, but rfc 1416
puts both versions on the same port, and negotiates authentication as a
telnet option. As far as I know this is the only service that works this
way.