> Is there a way to configure my system (Debian GNU/Linux) / > krb5_telnetd so that it doesnt permit non-Kerberos logins? I use MIT Kerberos 5 1.2.4 to 6 on Solaris and RedHat Linux. Try for krb5_telnetd an argument: -a user Still it is not possible to set krb5_telnetd to force only ciffered connection. Cheers Josef Kelbler