Ubuntu System Administration Training Course

Introduction

• Ubuntu versus Debian and other Linux distributions
• Key features and benefits of Ubuntu
• Ubuntu editions and variants

Getting Started

• Review of system requirements
• Installation of Ubuntu (Basic, Advanced, and Automated)
• Execution of bash shell commands
• Deployment of Ubuntu on cloud images

Configuring Network Devices

• Networking concepts, from basic to advanced
• Identification of Ethernet interfaces and assignment of logical names
• Assignment of IP addresses and default gateway settings
• Configuration of hostname records
• Implementation of interface bridging

Securing Systems

• User and permission management via sudo
• AppArmor module utilization for profile management
• Firewall configuration using ufw and iptables
• Self-signed and CA certificate configuration
• Access control implementation using LDAP and Samba AD

Managing Virtualization

• Virtualization enablement via qemu/kvm and libvirt
• OpenStack utilization for virtualization stack management
• VM creation using multipass, uvt, and virt tools

Managing Containers

• LXD and LXC utilization for container administration
• Container creation and initiation
• Profile and policy application to containers
• Image publishing, import, and export procedures

Maintaining Systems

• High availability cluster implementation
• Infrastructure workload monitoring
• Backup setup and restoration

Configuring Mail and Web Servers

• IMAP and POP3 server setup using Dovecot
• SMTP authentication setup using Exim4 and Postfix
• Apache web server configuration
• Squid proxy cache server configuration
• MySQL, PHP/Perl/Python, and Ruby on Rails installation

Troubleshooting

Summary and Next Steps