To unblock the IP please doe the following steps .
Login to mysql on the server as root user and connect to the cphulkd database.
mysql> use cphulkd;
You will now connect to database cphulkd. Now type in sql query
just to confirm if your IP is really blocked there.
mysql> SELECT * FROM `brutes` WHERE `IP`=’x.x.x.x’;
It will list your IP if it got blocked . The next step is to unblock the IP using the below command.
mysql> DELETE FROM `brutes` WHERE `IP`=’x.x.x.x’;
once it done quit the mysql by typing
In this way your IP will be removed from brute force