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Introduction to Linux Systems Administration
Description
Introduction to Linux Systems Administration Training
Dive into the dynamic world of Linux Systems Administration with this comprehensive training program, designed to equip you with the expertise needed for managing an Enterprise Linux system in a networked business environment. Throughout this course, you will gain hands-on experience in fundamental administrative tasks, including the installation, configuration, and regular maintenance of Linux systems.
Key areas of focus include user management, file system organization, security measures implementation, and proficient handling of software installations and package management. This course also covers critical networking concepts involving SSH, NFS, Samba, and the Apache Web server, preparing you to address common networking requirements in Linux.
While the training predominantly revolves around CentOS 7 / RHEL 7 Linux systems, the knowledge and skills imparted are largely transferable to other mainstream Linux distributions such as Oracle, Ubuntu, and Scientific Linux. Lab sessions are integral to the course, offering practical experience in areas like user and group maintenance, system backups and restoration, software management, automation of administrative tasks, file system management, remote access handling, cron jobs, and the configuration of basic file sharing and Web services.
In addition, students will become familiar with system logging utilities such as rsyslog, further broadening their administrative expertise. Upon completing this course, students will be fully prepared to manage and maintain Linux systems in a networked business environment, armed with a wide array of practical skills and knowledge.
Course Objectives
- Installing the Linux Operating System and Configuring Peripherals
- Performing and Modifying Startup and Shutdown Processes
- Configuring and Maintaining Basic Networking Services
- Creating and Maintaining System Users and Groups
- Understanding and Administering File Permissions on Directories and Regular Files
- Planning and Creating Disk Partitions and File Systems
- Performing Maintenance on File Systems
- Identifying and Managing Linux Processes
Prerequisites
- Attendees should be comfortable working with computers and the command line, but no other specific skills are required to attend.
Audience
- This is an introductory-level course, designed for anyone wanting to learn Linux.
Introduction to Linux Systems Administration Outline
System Administration Overview
- UNIX, Linux and Open Source
- Duties of the System Administrator
- Superusers and the Root Login
- Sharing Superuser Privileges with Others (su and sudo Commands)
- TCP/IP Networking Fundamentals
- Online Help
Installation and Configuration
- Planning: Hardware and Software Considerations
- Site Planning
- Installation Methods and Types
- Installation Classes
- Partitions
- Logical Volume Manager – LVM
- File System Overview
- Swap Partition Considerations
- Other Partition Considerations
- The Linux Boot Loader: grub
- Software Package Selection
- Adding and Configuring Peripherals
- Printers
- Graphics Controllers
- Basic Networking Configuration
- Booting to Recovery Mode
Booting and Shutting Down Linux
- Boot Sequence
- The systemd Daemon
- The systemctl Command
- Targets vs. Run Levels
- Modifying a Target
- Service Unit Scripts
- Changing System States
- Booting into Rescue Mode
- Shutdown Commands
Managing Software and Devices
- Identifying Software Packages
- Using rpm to Manage Software
- Using yum to Manage Software
- Installing and Removing Software
- Identifying Devices
- Displaying Device and System Information (PCI, USB)
- Plug and Play Devices
- Device Configuration Tools
Linux File Security
- File Permissions
- Directory Permissions
- Octal Representation
- Changing Permissions
- Setting Default Permissions
- Access Control Lists (ACLs)
- The getfacl and setfacl commands
- SUID Bit
- SGID Bit
- The Sticky Bit
Controlling Processes
- Characteristics of Processes
- Parent-Child Relationship
- Examining Running Processes
- Background Processes
- Controlling Processes
- Signaling Processes
- Killing Processes
- Automating Processes
- cron and crontab
- at and batch
- System Processes (Daemons)
Working with the Linux Kernel
- Linux Kernel Components
- Types of Kernels
- Kernel Configuration Options
- Recompiling the Kernel
Shell Scripting Overview
- Shell Script Fundamentals
- Bash Shell Syntax Overview
- Shell Script Examples
System Backups
- Backup Concepts and Strategies
- User Backups with the tar Command
- System Backup Options
- The xfsdump and xfsrestore Commands
Troubleshooting the System
- Common Problems and Symptoms
- Troubleshooting Steps
- Repairing General Boot Problems
- Repairing the GRUB 2 Boot Loader
- Hard Drive Problems
- Restoring Shared Libraries
- System Logs and rsyslogd
Basic Networking
- Networking Services Overview
- NetworkManager Introduction
- Network Configuration Files Locations and Formats
- Enabling and Restarting Network Services with systemtcl
- Configuring Basic Networking Manually
- Configuring Basic Networking with NetworkManager
LAMP Server Basics
- LAMP Overview
- Configuring the Apache Web Server
- Common Directives
- Apache Virtual Hosting
- Configuring an Open Source Database
- MySQL
- MariaDB
- PHP Basics
- Perl CGI Scripting
Introduction to System Security
- Security Overview
- Maintaining System Security
- Server Access
- Physical Security
- Network Security
- Security Tools
- Port Probing with nmap
- Intrusion Detection and Prevention
- PAM Security Modules
- Scanning the System
- Maintaining File Integrity
- Using Firewalls
- Introduction to firewalld
The Samba File Sharing Facility
- Configure Samba for Linux to Linux/UNIX File Sharing
- Configure Samba for Linux to Windows File Sharing
- Use the smbclient Utility to Transfer Files
- Mount/Connect Samba Shares to Linux and Windows Clients
Networked File Systems (NFS)
- Using NFS to Access Remote File Systems
- Configuring the NFS Server
- Configuring the NFS Client
- Exporting File Systems from the NFS Server to the NFS Client
$2595.00
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5 Days Course |