Certificate Authentication

Ubuntu Server Edition

• Ubuntu versions
• Available support
• TLS and standard edition
• Maintenance policy and life cycle

Ubuntu and Hardware

• Checking compatibility with Ubuntu
• Available kernels and supported architectures

Package Management

• Dpkg and apt-get
• Available sources
• Adding new sources
• Alternative packet management systems (RPM, Yums, etc...) and dependencies
• Aptitude
• Automatic Updates
• Distribution Upgrades

Networking

• Network Configuration
• TCP/IP, IPv4 and IPv6
• Dynamic Host Configuration Protocol (DHCP)
• Time Synchronisation - timedatectl, chrony
• Data Plane Development Kit (DPDK)

Remote Administration

• OpenSSH Server
• OpenLDAP Server
• Samba and LDAP
• Kerberos

Domain Name Service (DNS)

• Configuration

Security

• User Management
• Console Security
• Firewall
• AppArmor
• Certificates
• VPN
• SSSD

Web Servers

• HTTPD - Apache2 Web Server
• PHP8 - Scripting Language
• Squid - Proxy Server
• Ruby on Rails
• Apache Tomcat, Apache Kafka

Databases

• MySQL, MariaDB
• PostgreSQL

Wiki Applications

• Moin Moin
• MediaWiki

File Servers

• FTP Server
• Network File System (NFS)
• CUPS - Print Server

Email Services

• Postfix
• Exim4
• Dovecot Server
• Mailman
• Mail Filtering

Version Control System

• Bazaar
• Subversion
• CVS Server
• Mercurial
• GIT

Windows Networking

• Samba File Server
• Samba Print Server
• Securing a Samba File and Print Server
• Samba as a Domain Controller
• Samba Active Directory Integration
• Likewise Open

Backups

• Shell Scripts
• Archive Rotation
• Bacula
• Rsnapshot

Virtualization and Cloud Computing

• libvirt
• Packer.io
• Quemu and KVM
• VirtualBox
• VMware
• EC2
• Containers - lxd, lxc
• OpenStack

Other

• Keeping /etc under Version Control System
• Block Device Replication
• Tools - byobu, munin, nagios, puppet