Ubuntu System Administration Training Course

Introduction

• Comparing Ubuntu with Debian and other Linux distributions
• Key features and advantages of the Ubuntu ecosystem
• Different Ubuntu variants and editions

Getting Started

• Reviewing system requirements
• Installation methods: Basic, Advanced, and Automatic
• Executing commands within the bash shell
• Deploying Ubuntu on cloud image platforms

Network Device Configuration

• Core to advanced networking principles
• Identifying Ethernet interfaces and assigning logical names
• Assigning IP addresses and configuring default gateways
• Setting up hostname records
• Bridging multiple network interfaces

System Security

• Managing users and permissions via sudo
• Using the AppArmor module for profile management
• Configuring firewalls with ufw and iptables
• Managing self-signed and Certificate Authority (CA) certificates
• Implementing access controls through LDAP and Samba AD

Virtualization Management

• Enabling virtualization using qemu/kvm and libvirt
• Managing the virtualization stack with OpenStack
• Provisioning VMs using multipass, uvt, and other virt tools

Container Management

• Administering containers with LXD and LXC
• Creating and launching container instances
• Applying profiles and policies to containers
• Publishing, importing, and exporting container images

System Maintenance

• Building high availability clusters
• Monitoring infrastructure workloads
• Establishing and restoring backup solutions

Mail and Web Server Configuration

• Configuring IMAP and POP3 servers using Dovecot
• Setting up SMTP authentication with Exim4 and Postfix
• Deploying an Apache web server
• Configuring the Squid proxy cache server
• Installing MySQL, PHP/Perl/Python, and Ruby on Rails

Troubleshooting

Summary and Future Steps