Webmin is a free, open-source web-based system administration tool for Unix-like systems. It provides a user-friendly interface to manage servers, services, and applications, making it easy for system administrators to configure various server functions, such as DNS, Apache, databases, and user management, all through a web browser.

Features of Webmin:

• Web-based interface for managing system configuration and services.
• Supports managing multiple servers from a single interface.
• Extensive modules for managing a variety of services like Apache, MySQL, DNS, and more.
• Integrated file manager to navigate and manage file systems.
• Built-in security features, including SSL support and user authentication options.
• Allows managing server packages, software updates, and system logs.
• Supports custom modules for extending functionality.
• Role-based access control for secure user management.

Run these commands:
$ sudo apt install webmin
$ sudo systemctl start webmin
$ open https://localhost:10000

Disclaimer: Webmin is open-source software provided under the BSD License. It is offered "as is," without any warranty, express or implied. Users are responsible for ensuring the ethical and legal use of Webmin in their projects.