Ubuntu System Administration Training Course

Introduction

• Comparing Ubuntu, Debian, and other Linux distributions
• An overview of Ubuntu’s core features and advantages
• Exploring different Ubuntu variants and editions

Getting Started

• Reviewing system requirements
• Installing Ubuntu (covering Basic, Advanced, and Automatic methods)
• Executing bash shell commands
• Deploying Ubuntu on cloud images

Configuring Network Devices

• From basic to advanced networking concepts
• Identifying Ethernet interfaces and assigning logical names
• Assigning IP addresses and configuring the default gateway
• Setting up hostname records
• Bridging multiple network interfaces

Securing Systems

• Establishing users and permissions via sudo
• Managing profiles using the AppArmor module
• Configuring firewalls with ufw and iptables
• Setting up self-signed and CA certificates
• Implementing access controls through LDAP and Samba AD

Managing Virtualization

• Enabling virtualization capabilities using qemu/kvm and libvirt
• Overseeing the virtualization stack with OpenStack
• Creating virtual machines using multipass, uvt, and virt tools

Managing Containers

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

Maintaining Systems

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

Configuring Mail and Web Servers

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

Troubleshooting

Summary and Next Steps