Lost passwords of slave servers

A time ago I setup ISPConfig with a multi server setup with about 25 servers.
Now I'm trying to update all the servers to the latest ISPConfig but found that I did not write down all the passwords I used to connect the slave servers to the master server. Is there a way to retrieve / reset those passwords? I don't want to add them to the setup again since I will lose a lot of settings.

 

You don't need to know the mysql password for each slave (though it's stored in /usr/local/ispconfig/server/lib/mysql_clientdb.conf if you ever do), all you need to know is the mysql root password for the master server.

 

If you lost the slave's mysql-root-password for the master-server, you can change the password for [email protected] and [email protected] in mysql.user on the master.

 

I was looking for an option in ISPConfig to reset the password but this solution works fine for me.
Thanks for the swift reply!