An entry in the Firewall must be created in order to allow any database client, such as an application server to connect to the database deployment.
Go to CCX → choose data store → Firewall → Add Trusted Source to create a new firewall entry.
The following ports may be set:
|MariaDB and Percona||MySQL||3306||This port is used to connect directly to a MariaDB or Percona database server.|
|ProxySQL||6033||This port is used to connect to a ProxySQL load balancer.|
|6032||This port is used to connect to the administration module of ProxySQL.|
|PostgreSQL||PostgreSQL||5432||This port is used to connect directly to a PostgreSQL server.|
|HAProxy||5433||This port is used to connect to an HAProxy load balancer, for read-write connections.|
|5434||This port is used to connect to an HAProxy load balancer, for read-only connections.|