Problem: You cannot login to the UMC but password is correct

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Problem:

You cannot login to the UMC but password is correct

The authentication has failed, please login agian

image

Investigation:

Check the /var/log/auth.log for hints:

May 2 10:27:33 srv-01 python3: pam_tally(univention-management-console:auth): user Administrator (2002) tally 40, deny 3
May 2 10:27:33 srv-01 python3: pam_krb5(univention-management-console:auth): user Administrator authenticated as Administrator@SCHEIN.IG
May 2 10:27:41 srv-01 python3: pam_tally(univention-management-console:auth): user Administrator (2002) tally 41, deny 3
May 2 10:27:41 srv-01 python3: pam_krb5(univention-management-console:auth): user Administrator authenticated as Administrator@SCHEIN.IG

Here the tally 40, deny 3 is relevant from the logfile. This points us to faillog

ucr search --brief faillog

auth/faillog/limit: 3
auth/faillog: yes

Solution:

Check with
faillog -u Administrator
and reset it with
faillog -u Administrator -r

Faillog is not resetted by a password change! It is takes effect per server.

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