Ubuntu System Administration Training Course

Introduction

• Comparison of Ubuntu, Debian, and other Linux distributions for government use
• Overview of key features and benefits of Ubuntu in public sector operations
• Variants or editions of Ubuntu available for diverse governmental needs

Getting Started

• Understanding system requirements for deploying Ubuntu in government environments
• Installation methods: Basic, Advanced, and Automatic installation processes
• Executing bash shell commands for initial configuration and administration
• Running Ubuntu on cloud images to support scalable government IT infrastructure

Configuring Network Devices

• Basic to advanced networking concepts for secure and efficient government networks
• Identifying Ethernet interfaces and setting logical names in government systems
• Assigning IP addresses and default gateway configurations for network connectivity
• Configuring hostname records to ensure proper domain resolution
• Bridging multiple network interfaces for enhanced connectivity and redundancy

Securing Systems

• Setting up users and permissions using sudo for secure access control in government systems
• Using the AppArmor module to manage security profiles and policies
• Configuring a firewall using ufw and iptables to protect government data
• Configuring self-signed and CA certificates for secure communications
• Implementing access controls using LDAP and Samba AD for centralized authentication

Managing Virtualization

• Enabling virtualization with qemu/kvm and libvirt to optimize resource utilization in government IT environments
• Using OpenStack to manage a robust virtualization stack for government operations
• Creating VMs using multipass, uvt, and virt tools for flexible deployment options

Managing Containers

• Using LXD and LXC to administer containers for efficient application isolation in government systems
• Creating and starting containers to support various governmental applications
• Applying profiles and policies to containers to ensure security and compliance
• Publishing, importing, and exporting container images for easy management and distribution

Maintaining Systems

• Implementing high availability clusters to ensure continuous service delivery in government operations
• Monitoring infrastructure workloads to maintain optimal performance and reliability
• Setting up and restoring backups to protect critical government data and systems

Configuring Mail and Web Servers

• Setting up IMAP and POP3 servers with Dovecot for secure email communication in government agencies
• Setting up SMTP authentication with Exim4 and Postfix to ensure reliable email services
• Setting up an Apache web server to host government websites and applications
• Configuring a Squid proxy cache server to optimize network traffic and improve performance
• Installing MySQL, PHP/Perl/Python, and Ruby on Rails for dynamic web application development in government projects

Troubleshooting

Summary and Next Steps