Configuring DNS, SSH, FTP, and Web Services on Ubuntu Servers

This document details the complete setup and configuration of an Ubuntu server, covering multiple services across several virtual machines. It begins with the installation and configuration of DNS and SSH servers on the first virtual machine, including setting up the primary and secondary DNS servers, creating forward and reverse zone files, and configuring DNS clients. The second part focuses on setting up an Apache web server on a separate virtual machine. The third part covers remote file access via FTP, including user creation, directory permissions, and vsftpd configuration. The fourth part focuses on making DNS robust by replicating the DNS setup on another virtual machine. Finally, the fifth part integrates simple web services by configuring DNS, creating SSL certificates, and setting up the web server, providing a complete and practical guide to server administration and network services. The assignment includes detailed, step-by-step instructions, and configuration examples for each service, making it a valuable resource for learning about server administration.