Volume groups and logical volumes provide an abstract layer on top of the physical storage devices on an Ubuntu system to provide a flexible way to allocate the space provided by multiple disk drives. This allows disk space allocations to be made and changed dynamically without the need to repartition disk drives and move data between filesystems. This chapter has outlined the basic concepts of volume groups, logical volumes and physical volumes while demonstrating how to manage these using command-line tools.
Ubuntu 20.04 Essentials
By :
Ubuntu 20.04 Essentials
By:
Overview of this book
Ubuntu is undeniably one of the most highly regarded and widely used Debian-based Linux distributions available today. Thanks to its ease of use and reliability, Ubuntu has a loyal following of Linux users and an active community of developers.
Ubuntu 20.04 Essentials is designed to take you through the installation, use, and administration of the Ubuntu 20.04 distribution in detail. For beginners, the book covers topics such as operating system installation, the basics of the GNOME desktop environment, configuring email and web servers, and installing packages and system updates. Additional installation topics such as dual booting with Microsoft Windows are also covered along with crucial security topics such as configuring a firewall and user and group administration.
For the experienced user, the book delves into topics such as remote desktop access, the Cockpit web interface, logical volume management (LVM), disk partitioning, and swap management. Further, it also explores KVM virtualization, Secure Shell (SSH), Linux containers, and file sharing using both Samba and NFS to provide a thorough overview of this enterprise-class operating system.
Table of Contents (38 chapters)
1. Introduction
Free Chapter
2. A Brief History of Linux
3. Installing Ubuntu on a Clean Disk Drive
4. Installing Ubuntu with the Network Installer
5. Dual Booting Ubuntu with Windows
6. Allocating Windows Disk Partitions to Ubuntu
7. A Guided Tour of the GNOME 3 Desktop
8. An Overview of the Ubuntu Cockpit Web Interface
9. Using the Bash Shell on Ubuntu
10. Managing Ubuntu Users and Groups
11. Managing Ubuntu systemd Units
12. Ubuntu Software Package Management and Updates
13. Ubuntu Snap Package Management
14. Ubuntu Network Management
15. Ubuntu Firewall Basics
16. Using gufw and ufw to Configure an Ubuntu Firewall
17. Basic Ubuntu Firewall Configuration with firewalld
18. Configuring SSH Key-based Authentication on Ubuntu
19. Ubuntu Remote Desktop Access with Vino
20. Ubuntu Remote Desktop Access with VNC
21. Displaying Ubuntu Applications Remotely (X11 Forwarding)
22. Using NFS to Share Ubuntu Files with Remote Systems
23. Sharing Files between Ubuntu and Windows Systems with Samba
24. An Overview of Virtualization Techniques
25. Installing KVM Virtualization on Ubuntu
26. Creating KVM Virtual Machines using Cockpit and virt-manager
27. Creating KVM Virtual Machines with virt-install and virsh
28. Creating an Ubuntu KVM Networked Bridge Interface
29. Managing KVM using the virsh Command-Line Tool
30. An Introduction to Linux Containers
31. Working with Containers on Ubuntu
32. Setting Up an Ubuntu Web Server
33. Configuring an Ubuntu Postfix Email Server
34. Adding a New Disk Drive to an Ubuntu System
35. Adding a New Disk to an Ubuntu Volume Group and Logical Volume
36. Adding and Managing Ubuntu Swap Space
37. Ubuntu System and Process Monitoring
Index
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