passwd: pam_unix(passwd:chauthtok): password changed for user3
passwd: gkr-pam: couldn't update the 'login' keyring password: no old password was entered

sshd[21420]: error: PAM: Authentication failure for user3 from computer1

unix_chkpwd[21903]: password check failed for user (user3)
sshs[21745]pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=computer1 user=user3
sshd[21718]: error: PAM: Authentication failure for user3 from computer1
sshd[22121]: error: PAM: Authentication failure for illegal user user3 from computer3

pam_tally2 --user=<username>

pam_tally2 --user=<username> --reset