Ubuntu 18.04 Essentials

Ubuntu 18.04 remains a familiar sight in existing deployments, tutorials, and learning environments. Neil Smyth’s Ubuntu 18.04 Essentials is written for readers who need more than scattered blog posts: it moves through installing, administering, and using the system in a clear sequence, from first boot to running network services.

Installation and First Impressions

The early chapters cover obtaining Ubuntu media, writing a USB installer, installing on a clean disk, using the network installer, and dual-booting with Windows. Once the desktop is available, a guided GNOME 3 tour introduces the interface, calendar, notifications, and software installation. The Cockpit web interface is also covered for browser-based administration.

Command-Line and Core Administration

Much of Ubuntu administration takes place in the terminal, so the book devotes chapters to the Bash shell, input and output redirection, pipes, environment variables, and command-line editing. From there it moves to user and group management, APT package management, automatic updates, and systemd targets and services—skills that matter whether you manage one machine or several.

Networking, Security, and Remote Access

Networking coverage includes NetworkManager, connection profiles, ports and services, and firewall tools such as ufw, gufw, and firewalld. Key-based SSH authentication, remote desktop access with Vino and VNC, and X11 forwarding help you work with Ubuntu systems from another computer securely.

File Sharing and Virtualization

File sharing is handled through NFS and Samba, including steps for accessing Windows resources. Virtualization receives substantial attention: the guide explains KVM requirements and installation, virtual machine creation with Cockpit and virt-manager, command-line tools like virt-install and virsh, and bridged networking. Linux containers are introduced alongside practical container workflows.

Services on Ubuntu

Later chapters focus on setting up an Apache web server with HTTPS and configuring a Postfix email server. The sequence ties together firewall settings, DNS considerations, and service configuration in a way that reflects real-world administration.

Who This Guide Is For

If you are new to Ubuntu, switching from another Linux distribution, or need a reliable reference for 18.04 deployments, this ebook provides a focused path through the tools and tasks you’re likely to encounter. The tone is instructional and example-driven, with an emphasis on doing rather than theory alone.