How to update krb5.keytab file on RHEL system using 'adcli' utility without re-joining the system to AD domain

Issue

• How to update krb5.keytab file on RHEL system using adcli utility without re-joining the system to AD domain.

• AD user lookup & authentication is failing via SSSD:

Failed to initialize credentials using keytab [MEMORY:/etc/krb5.keytab]: Preauthentication failed.

• kinit -k is failing with following error: Preauthentication failed while getting initial credentials

[root@rhel8-test ~]# kinit -k ‘RHEL8-TEST$’
kinit: Preauthentication failed while getting initial credentials