RIT
Systems and Technologies

Kerberos errors in Mac OS X Telnet

When using Mac OS X's built-in telnet client and certain RIT VMS servers, you may experience the following error:

[ Trying KERBEROS4 ... ]
Kerberos Login:
Please enter your principal name: mk_req failed: Can't find Kerberos ticket or TGT

You may ignore these errors at this time. If you wish to surpress these errors, use one of the following methods:

Telnet command-line options

Telnet may be launched with the following command to surpress Kerberos errors:

telnet -X KERBEROS_V4 server.name.or.ip

Telnet's .telnetrc file

Using a text editor, create the file ".telnetrc" in your home directory with the following contents:

rit.edu auth disable KERBEROS_V4

This will automatically disable Kerberos authentication. Note that this requires you to telnet rit.edu; if you wish you disable Kerberos to additional servers, you would edit your file as such:

rit.edu auth disable KERBEROS_V4
vaxa.rit.edu auth disable KERBEROS_V4

Section:
Keywords: error, internet, mac os x, network, telnet, terminal, troubleshooting
Question: Why am I getting a Kerberos error when I Telnet to RIT's VMS servers with Mac OS X's Terminal application?
FAQ item: true
Score: 500