To use a file server effectively in your computer network, you should follow some best practices. You should plan your file server capacity and structure, taking into account the amount of storage space and bandwidth needed, as well as how you want to organize, backup, archive, and delete your files. Additionally, you should select a file server type and software that fits your budget, performance, and functionality requirements, comparing the features of different options and reading reviews from other users. Furthermore, configure your file server settings and security by setting up the network configuration and enabling the appropriate protocols, services, and ports. Additionally, secure your file server with passwords, encryption, firewalls, antivirus, and access controls. Lastly, monitor and maintain your file server performance and health by regularly checking it for errors or bottlenecks and fixing them as soon as possible. Additionally, update the file server software and firmware as needed, as well as replace or upgrade the hardware if necessary.