mysql backup servers of oracle managed DB

[unixfox]

start active mysql backup servers of oracle managed DB.

help:

• https://lefred.be/content/master-slave-replication-with-mysql-8-0-in-2-mins/
• https://www.digitalocean.com/community/tutorials/how-to-set-up-master-slave-replication-in-mysql

add a slave on a live database:

• https://www.schalley.eu/2017/01/16/setting-up-mysql-replication-with-existing-data-master-slave/