Linux Server Cookbook: Get Hands-on Recipes to Install, Configure, and Administer a Linux Server Effectively

Cover Page
Title Page
Copyright Page
Dedication Page
About the Authors
About the Reviewer
Acknowledgements
Preface
Errata
Table of Contents
1. Introduction to Linux
	Introduction
	Structure
	The magnitude of Linux
	Linux on key sectors of the IT industry
		Software
		Devices and infrastructures
		Information technology and business services
		Emerging technologies
		Telecommunications services
	Latest features in Linux
	Linux versus other operating systems
	Promising future of Linux
	Conclusion
	Key facts
	Questions
	Answers
2. Linux Installation
	Introduction
	Structure
	Linux support types
		Red hat enterprise Linux long-term support
		Ubuntu server long-term support
		SUSE Linux enterprise server long-term support
		Oracle Linux long-term support
	Installation methods
	Common installation steps
	Advanced installation steps
	Debian GNU/Linux
		Installation menu
		Select a language
		Select the location
		Configure the keyboard
		Configure the network
		Set up users and passwords
		Configure the clock
		Partition disks
		Install the base system and install software
		Install the GRUB boot loader
	Ubuntu server
		Installation menu
		Select installation language
		Keyboard configuration
		The base for the installation
		Network connections
		Configure the Ubuntu archive mirror
		Guided storage configuration
		Profile setup
		SSH setup
		Featured server snaps
	Red Hat Enterprise Linux
		Installation menu
		Select a language
		Installation summary
		Connect to Red Hat
		Installation destination
		Software selection
		Root password
		User creation
		Installation progress
	CentOS and CentOS stream
	Rocky Linux and Alma Linux
	SUSE Linux enterprise server and openSUSE
	Other popular distributions
	Conclusion
	Key facts
	Questions
	Answers
3. Using the Command Line Interface
	Introduction
	Structure
	Linux console and the prompt
	Use of basic first CLI commands
		Command pwd
		Command whoami
		Command hostname
		Command man
		Command cd
		Command history
		Command uptime
	CLI commands to identify resources
		Command lscpu
		Command lshw
		Command free
		Command df
		Commands lspci, lsusb, and lsblk
	CLI commands to list elements
		Command ls
		Command find
	Explanation of standard streams
	CLI commands for data stream
		Command echo
		Command read
		Command tee
	Conclusion
	Key facts
	Questions
	Answers
4. User Administration and Software Management
	Introduction
	Structure
	Introduction to users and groups
	Best practices for user accounts
	Commands to administrate users
		Command id
		Commands useradd and adduser
		Command usermod
		Command lslogins
		Commands who and w
		Command userdel
		Command passwd
		Command chage
		Command last
	Commands to manipulate groups
		Command groupadd
		Command groups
		Command groupmod
		Command groupdel
		Command gpasswd
		Command newgrp
	Introduction to RPM and DEB package formats
	Commands to operate with RPM packages
		Command rpm
		Commands yum and dnf
	Commands to operate with DEB packages
		Command dpkg
		Command apt-get, apt-cache, and apt-file
	Introduction to services
	Conclusion
	Key facts
	Questions
	Answers
5. Managing Files, Directories, and Processes
	Introduction
	Structure
	Linux directory structure
		Directories storing applications
		Directories storing user files
		Directories storing configurations
		Directories storing libraries
		Directories storing variable data
		Directories storing data for users
		Directories storing system data information and boot files
	Permissions
	Access to files and understanding files on Linux
		Commands chown and chgrp
		Command chmod
		Command cat
		Commands head and tail
	Special characters
	Regular expressions
		Commands grep
		Commands awk
		Formatting the output
	File editors and file managers
	Processes management
	Operate with processes priorities
	Conclusion
	Key facts
	Questions
	Answers
6. Monitoring System Resources
	Introduction
	Structure
	Monitoring CPU resources
		Obtaining CPU(s) information
		Understanding the system load and load average
		Command uptime and file /etc/loadavg
			Command top
		Commands atop and htop
		Command mpstat
			Command sar
			Command iostat
	Monitoring memory resources
		Command vmstat
		Commands top, htop, and atop
		Command sar
		Memory usage for each process
		Out of memory management
	Monitoring disk usage and available space
		Command iostat
		Command iotop
		Command atop
		Command smartctl
		Commands fio and hdparm
		Commands df and LVM commands
	Monitoring network resources
		Command ethtool
		Command nmon
		Commands traceroute, tracepath, and mtr
	Quotas and limits
		Quotas
		Limits
	Conclusion
	Key facts
	Questions
	Answers
7. Network Configuration
	Introduction
	Structure
	Network introduction
		Physical layer (Layer 1)
		Data link layer (Layer 2)
		Network layer (Layer 3)
		Transport layer (Layer 4)
		Session, presentation, and application layers (Layers 5, 6, and 7)
	Basic network configuration
		Network configuration on Red Hat-based systems
			Command nmcli
			Command nmtui
		Network configuration on Debian and Ubuntu
	Routing
	Advanced network configuration
		Link aggregation (bonding)
			Network bridges
			Virtual LANs (VLANs)
	Conclusion
	Key facts
	Questions
	Answers
8. Security
	Introduction
	Structure
	Security introduction
	Firewall configuration on Linux
		Firewalld
		ufw
		Masquerading
	Services security
		Disabling not needed services
		Listing services listening in all interfaces
		Service logging
		Intrusion detection system
		Security models
	Network monitoring
	Conclusion
	Key facts
	Questions
	Answers
9. Network Services
	Introduction
	Structure
	DHCP service and client
		Linux DHCP servers and client
	DNS service and clients
		Linux DNS servers and client
	SSH service and SSH client
		SSH public and private keys
	Check network services available
	Other popular network services
	Conclusion
	Key facts
	Questions
	Answers
10. File Sharing
	Introduction
	Structure
	NFS service and client
		NFS server
			NFS client
	SMB introduction
	Samba server and client
		Samba Server
		Samba client
	FTP server and client
	TFTP introduction
	Conclusion
	Key facts
	Questions
	Answers
11. Databases
	Introduction
	Structure
	Relational databases
	Structured Query Language (SQL)
		CREATE statement
		DROP statement
		ALTER statement
		INSERT statement
		SELECT statement
		UPDATE statement
		DELETE statement
		GRANT statement
		REVOKE statement
	MariaDB server
		MariaDB client and tasks
	SQLite
	NoSQL databases
	MongoDB databases
	MongoDB client and tasks
	Conclusion
	Key facts
	Questions
	Answers
12. Automation
	Introduction
	Structure
	Introduction to IT automation
	Automation with shell scripting
	Automation with Python
	Automation with Ansible
		Inventory
			AD-HOC actions
		YAML
		Ansible configuration
		Playbooks
		Variables
		Variable precedence
		Handlers
		Include and import
		Facts and magic variables
		Conditionals
		Loops
		Register
		Templates
		Blocks
		List of popular modules
		Roles
		Collections
		Ansible Galaxy
	Conclusion
	Key facts
	Questions
	Answers
13. Containers and CI/CD
	Introduction
	Structure
	Introduction to containers and images
		Containers versus virtualization
		Container content
		Images
		Image registry
	Docker
		Run the first container
		Obtain information about client and server
		Operate with containers
		Exposing containers
		Container actions
		Docker server statistics and events
	Image registry
	Podman
	Container runtimes
	Kubernetes
	Introduction to continuous integration/delivery
	Jenkins, Gitlab CI/CD, and Github actions
		Jenkins
		Gitlab CI/CD
		GitHub actions
	Conclusion
	Key facts
	Questions
	Answers
14. Backup and Restore
	Introduction
	Structure
	Introduction to backup and restore
	Storage media for Backups
	Backup types
	Backup sources
	Backup strategies
	Backup solution features
	Bacula
		Bacula installation
		Bacula services
		Client installation
		Command bconsole
	Relax-and-Recover (ReaR)
	Conclusion
	Key facts
	Questions
	Answers
15. Multi Cloud Management
	Introduction
	Structure
	Introduction to cloud providers
		Advantages
	Cloud services
		Amazon Web Services (AWS)
		Microsoft Azure
		Google Cloud Platform
		Alibaba Cloud
		OpenStack
	Multi cloud management
	Infrastructure as code
	Terraform
		Installation
		Running a simple Web server on AWS
		Running a simple Web server on the Google Cloud Platform
		Running a simple Web server on Microsoft Azure
		Configuring DNS with Cloudflare
	Conclusion
	Key facts
	Questions
	Answers
16. Infrastructure as a Service
	Introduction
	Structure
	Infrastructure as a Service
	Private Cloud
	Hybrid Cloud
	OpenStack as an IaaS
	Running virtual machines on OpenStack
		Images
		Flavors
		Networking architecture
		Networking for Virtual Machines
		Routing
		Security Groups
		Public key
		Virtual Machines
		Floating IPs
		Persistent storage
		Orchestration
		Dashboard
	Conclusion
	Key facts
	Questions
	Answers
Index