Cpanel has a daemon that checks for unsuccessful logins (like lastb on a shell), it is called Hulk.

When a user’s user (a customer’s client who bought access to the server) has an error regarding this and denying access it’s because someone was brute forcing his way in using that user’s username.

To make sure of this, log into the server via ssh then:

1.Run mysql

mysql

2.Connect to hulk’s DB

connect cphulkd

3.Check the times and tries that are logged

select IP, BRUTETIME from brutes order by BRUTETIME;
select IP, LOGINTIME from logins order by LOGINTIME;

Both will show the brute forcing dates and ips that tried to access the server.

The solution is to change the user’s username to something different, try to avoid disabling the brute forcing protection.

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