Red Hat Linux 9 was released in 2003 as the final version of the Red Hat Linux operating system before the company moved its focus to its enterprise products. One of the key features of Red Hat Linux 9 was its support for the MySQL database management system.

MySQL is an open-source relational database management system that is known for its speed, reliability, and ease of use. It is widely used in web applications and is a popular choice for small to medium-sized businesses due to its cost-effectiveness.

Red Hat Linux 9 included the MySQL server as part of its software package, making it easy for users to set up and manage their databases. Users could install and configure MySQL using the Red Hat Package Manager (RPM) or by compiling the source code.

One of the advantages of using MySQL on Red Hat Linux 9 was its integration with other open-source software. For example, users could easily integrate MySQL with the Apache web server and PHP to create dynamic web applications. This made it a popular choice for web developers looking for a cost-effective and efficient solution.

Red Hat Linux 9 also included tools for monitoring and managing MySQL databases. Users could use the MySQL Monitor tool to keep track of the performance of their databases and identify any potential issues. The MySQL Administrator tool provided a graphical interface for managing databases, making it easier for users to perform tasks such as creating tables, importing data, and running queries.

Overall, the combination of Red Hat Linux 9 and MySQL provided users with a powerful and reliable platform for developing and deploying web applications. With its ease of use, cost-effectiveness, and strong community support, MySQL on Red Hat Linux 9 was a popular choice for businesses and developers looking to harness the power of open-source software.