Why does MySQL use port 3306?

What is the use of port 3306?

Port 3306 is the default port for the classic MySQL protocol ( port ), which is used by the mysql client, MySQL Connectors, and utilities such as mysqldump and mysqlpump.

Why does MySQL need a port?

Contact MySQL From a security point, these ports need to be opened just wide enough to allow the various components that should communicate to talk while blocking out anything else trying to hack its way in – the goal being to enforce the security principle of “least privilege”.

How do I fix MySQL port 3306 already in use?

Show activity on this post.1open xampp control panel.2click on "config" button.3click on "service and port settings".4click on "mysql" tab.5change the value labeled "Main Port" to 3307.MySQL startup error - port is already in use - Stack Overflow

Why is port 3306 Vulnerable?

In general, port 3306 shouldn't be opened since it could make the server vulnerable to attack. If the user needs to connect to the database remotely, there are many other secure options, instead of opening the port 3306. One of the secure options includes using an SSH tunnel.