MySQL Administrator Error … MySQL Error Number 1103

The error message you're getting shows that you correctly made the connection to port 3306 on the remote server. Your network settings are therefore fine.

What you have is an ACL problem - "Host 'abc' is not allowed to connect to this MySql server".

I'm a little rusty on MySQL ACLs, but instead of granting access to 'root'@'my.ip.address', try granting it to 'root'@'abc'

Try connecting with mysql -u someuser -p -h 127.0.0.1.

If you can connect without a password, either you have saved credentials in a .my.cnf or you have created an account that allows access without a password.

This comment from the mysql docs may also be related.

http://dev.mysql.com/doc/refman/5.1/en/access-denied.html

If you cannot figure out why you get Access denied, remove from the user table all entries that have Host values containing wildcards (entries that contain '%' or '_' characters). A very common error is to insert a new entry with Host='%' and User='some_user', thinking that this allows you to specify localhost to connect from the same machine. The reason that this does not work is that the default privileges include an entry with Host='localhost' and User=''. Because that entry has a Host value 'localhost' that is more specific than '%', it is used in preference to the new entry when connecting from localhost! The correct procedure is to insert a second entry with Host='localhost' and User='some_user', or to delete the entry with Host='localhost' and User=''.