Solution
To unlock your user in ESXi web UI you need to connect to go through the following steps:
-
Connect to your server over SSH:
ssh <your-esxi-user>@<your-esxi-ip>
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Run PAM command to unlock user:
[<your-esxi-user>@r710:~] pam_tally2 --user <user-to-unlock> --reset Login Failures Latest failure From <user-to-unlock> 33 12/27/23 11:23:24 unknown