Unable to login as AD user on RHEL6 system after Joining the system to AD domain

Solution Verified - Updated -

Issue

  • Unable to login as AD user on RHEL6 system after integrating the system to AD domain.
  • Following errors are seen when AD user tries to ssh from a remote system:

    Jun 24 11:00:55 hostname1 sshd[2859]: pam_winbind(sshd:auth): user 'KT+user1' granted access
    Jun 24 11:00:55 hostname1 sshd[2859]: pam_krb5[2859]: account checks fail for 'KT+user1': unknown reason -1765328316 (Realm not local to KDC)
    Jun 24 11:00:55 hostname1 sshd[2859]: pam_winbind(sshd:account): user 'KT+user1' granted access
    Jun 24 11:00:55 hostname1 sshd[2860]: fatal: Access denied for user KT+user1 by PAM account configuration
    Jun 24 11:00:55 hostname1 sshd[2859]: Failed password for KT+user1 from x.x.x.x port 1118 ssh2
    Jun 24 11:01:16 hostname1 sshd[2877]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser=
    

Environment

  • Red Hat Enterprise Linux 6.1
  • Authenticated to AD using Winbind
  • Microsoft Windows 2003

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