On 04/04/2013 01:07 PM, Dmitri Pal wrote:

How SSH is configured on the RHEL box?
Does it use GSSAPI Authentication?

The version in F18 should be very close to version in RHEL 6.4.
Are your sssd.conf files in any way different?
It seems that your RHEL box is misconfigured in some way.

Things to look at is your pam.conf for the desktop login, nsswitch.conf, sssd.conf and ssh configuration files.
Looking at those would most likely provide the answers.

Thanks, the GDM login problem turned out to be missing pam_krb5.so lines in /etc/pam.d/system-auth and password-auth. The other configuration files are identical between the working Fedora laptop and the (now working) RHEL 6.4 workstation.

SSH is configured to use GSSAPI, as I suspected and your suggestion that I check confirmed.

    /Harry