Ubuntu Server Edition
Ubuntu versions
Available support
LTS and non-LTS releases
Maintenance policy and life cycle
Package Management
Dpkg and apt
Available sources
Adding new sources
Aptitude
Automatic Updates
Distribution Upgrades
Networking
Network Configuration
TCP/IP, IPv4 and IPv6
Dynamic Host Configuration Protocol (DHCP)
Remote Administration
OpenSSH Server
OpenLDAP Server
Domain Name Service (DNS)
Configuration
Security
User Management
Console Security
Firewall
AppArmor
Certificates and ways to obtain them (letsencrypt, dehydrated, commercial)
Useful OpenSSL commands
Web Servers and Web Applications
HTTPD - Apache2 Web Server
Setting up a reverse proxy
Modifying an Application to Work Behind a Reverse Proxy
PHP7 - Scripting Language
Node.JS
Python
Databases
MariaDB
Wiki Applications
MediaWiki
Email Services
Postfix
Dovecot Server
Mail Filtering
Version Control System
Subversion
GIT
Backups
Shell Scripts
Archive Rotation
Bacula
Virtualization and Cloud Computing
Qemu and KVM
EC2
Other
Keeping /etc under Version Control System
Setting up RAID
Monitoring with Munin |