Change linux password error asking Current Kerberos password:

The error is:
# passwd user1
Current Kerberos password:


This user1 is a local user not an AD or remote user, so why this happens...


Run;
# pam-auth-update



Check if Kerberos is enabled, if is, "disable"

This is done on Linux Debian 8.6

Now the password can be changed via command line using shell