MYSQL replication outbound links
https://www.digitalocean.com/community/tutorials/how-to-set-up-mysql-master-master-replication
https://www.rackspace.com/knowledge_center/article/set-up-mysql-master-slave-replication
https://blog.nexcess.net/2011/06/04/configuring-mysql-replication/
http://superuser.com/questions/820328/how-do-i-tell-if-mysql-replication-is-occurring-over-ssl
http://dev.mysql.com/doc/refman/5.6/en/replication-solutions-ssl.html
http://lowendbox.com/blog/getting-started-with-mysql-over-ssl/
http://fromdual.com/how_to_setup_mysql_master-slave_replication