3306

Q: What is port 3306?

MySQL and MariaDB database server Port 3306 is the default port for MySQL and MariaDB, the most widely used open-source relational databases. They power WordPress, Drupal, Laravel, Magento, and countless other applications. This port must never be accessible from the internet — it is among the first ports scanned by attackers. Always bind MySQL to 127.0.0.1 and use an SSH tunnel for remote administration.

MySQL Dangerous

MySQL and MariaDB database server

Port

3306

Protocol

TCP

Service

MySQL

Security

Dangerous

Full name: MySQL / MariaDB Database

What is port 3306?

Port 3306 is the default port for MySQL and MariaDB, the most widely used open-source relational databases. They power WordPress, Drupal, Laravel, Magento, and countless other applications. This port must never be accessible from the internet — it is among the first ports scanned by attackers. Always bind MySQL to 127.0.0.1 and use an SSH tunnel for remote administration.

Quick checks

$ nc -zv example.com 3306

$ nmap -p 3306 example.com

$ telnet example.com 3306

Related ports

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