zimbra mysql

To reuse the zimbra mysql db
I do 
 basedir      = /opt/zimbra/mysql
datadir      = /opt/zimbra/db/data
socket       = /opt/zimbra/db/mysql.sock
pid-file     = /opt/zimbra/db/mysql.pid
#bind-address = localhost
port         = 7306
user         = zimbra
tmpdir       = /opt/zimbra/data/tmp


in /opt/zimbra/conf/my.cnf

and restart the mysql server using 
/opt/zimbra/bin/mysql.server restart

After this a user could be configured to connect from remote hosts 
 portal_user | %                     |