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Oracle Linux: Active Directory User Fails to Login with Error "Permission Denied"
in Linux
Applies to:
Oracle Linux
Symptoms:
While trying to login as an Active Directory user, the user is unable to login and receives a "Permission Denied" message. /var/log/secure shows "4 ( System Error )" and kinit for the same user fails with "Connection refused while resolving ccache"
Cause:
The systemd service sssd-kcm was installed and enabled by mistake but it was not running, hence /etc/krb5.conf.d/kcm_default_ccache exists and sssd was looking for the sssd-kcm service but failed to connect to it.
Solution:
To fix the issue, in file/etc/krb5.conf.d/kcm_default_ccache comment out the following lines
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