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Table of Contents
What is Linux?
What is Virtual Box?
Oracle Virtual Box Installation
Creating Virtual Machine
Linux Distributions
Linux CentOS7 Installation (Recommended)
Linux CentOS8 Installation (Optional)
Download and Install Putty
Connect Linux VM through Putty
Changing Password
Introduction to File System and Structure
File System Navigation Commands
Directory Listing Overview
Creating Files and Directories
Pipes
File Permissions
File Ownership Commands
Adding Text to Files
Help Commands
File Maintenance Commands (cp, rm, mv, mkdir, rmdir)
File Display Commands (cat, less, more, head, tail, vi)
Filters / Text Processing Commands
Finding System Information
Linux File Editor (vi)
User Account Management
Switch Users and Sudo Access (su, sudo)
System Utility Commands
Processes and Schedules
System Maintenance Commands
System Monitoring Commands
Shell Scripting
Basic Shell Scripts
History Command (history)
Enabling Internet in Linux VM
Network Files and Commands
System Updates and Repositories (rpm and yum)
Linux is a free Unix-type operating system originally created by Linus Torvalds with the assistance of developers around the world.Linux is an independent POSIX implementation and includes true multitasking,virtual memory, shared libraries, demand loading, proper memory management, TCP/IP networking, and other features consistent with Unix-type systems.
Developed under the GNU General Public License,the source code for Linux is freely available to everyone.
ATRC offers three different types of LINUX Courses:-
1_LINUX Introduction & Usage:
The contents of the course are as follows:
Introduction and History. XWindows. Applixware for Office. Netscape Communicator. IRC.
Course Duration: 10 Hour's. Course Fee: Rs.1,000/=
2_LINUX Administrxation:
The contents of the course are as follows:
Introduction and History. XWindows Setup. Dial-up Networking. Ethernet Networking. TCP/IP. Windows Networking(SMB). Send Mail(Mail Server). Appachi Web Server. Applixware for Office. DNS Server. NFS File System. Soundcard Configuration.
Course Duration: 40 Hour's. Course Fee: Rs.5,000/=
3_LINUX Hardware Support:
The contents of the course are as follows:
Introduction and History. Detailed XWindows Setup. Dial-up Networking. Ethernet Networking. Sondcard Installation. Modem Installation. Hardware Compatibility Issues.
Course Duration: 10 Hour's. Course Fee: Rs.1,000/=
Home
Linux Course
The Training Company Courses Terms and Facilities
Currently the courses are offered on an hourly basis.
Students can email in the list of topics they wish to study along with the number of hours they wish to spend on each topic.
The charges for all Linux courses are Rs 100 per hour per student.
Send list of topics and hours.
Home
Distributions
Unix and Linux differnces
GPL Licencing
Linux Directory Structure
Basic Commands
Commands list for Assignment
Shell Programming
User Accounts and File Permissions
Internet Services and Process Management?
Installing Softwares and Networking
PostgreSQL Database?
Cron Scheduling and DNS Servers?
Detailed Installation and Trouble Shooting
References : Rute Book http://rute.2038bug.com/index.html.gz The Linux Documentation Project http://tldp.org/
System Startup and Shutdown
This module explains how to manage startup and shutdown processes in Linux.
Understanding the Boot Sequence
An introduction to the Linux boot and startup processes
6 Stages of Linux Boot Process (Startup Sequence)
The Linux Booting Process - 6 Steps Described in Detail
Linux Booting Process: A step by step tutorial for understanding Linux boot sequence
The Grand Unified Boot Loader
GRUB (GRand Unified Bootloader)
GRUB: The Grand Unified Bootloader
GRUB: The Grand Unified Boot Loader
GRUB, GNU GRand Unified Boot Loader
x86: Administering the GRand Unified Bootloader (Tasks)
GRUB: GRand Unified Bootloader
GRUB Configuration Files
System Configuration Files in /etc
3.7. /etc : Host-specific system configuration
3.2.4. The most important configuration files
Understanding Linux configuration files
8.3. System Configuration via /etc/sysconfig
Guide to linux configuration files
The init Process
Chapter 13. Booting and Configuring a Linux System / 13.2. The init Process
Init process on UNIX and Linux systems
SysVinit Startup
LFCS: Managing System Startup Process and Services (SysVinit, Systemd and Upstart) – Part 7
chkconfig and service
How to enable or disable service on boot with chkconfig
Upstart
systemd
systemd System and Service Manager
Shutting down/Rebooting the System
Shutting Down/Rebooting the System
Practicals
Boot into non-graphical mode using GRUB
Add a new startup service with System V
Add a new startup services with system
Run Shutdown vs. Halt vs. Reboot
Linux Filetree System Layout
This module explains how the Linux Filesystem is organized and points out the key directories and their roles.
Data Distinctions
FHS Linux Standard Directory Tree
root (/) directory
/bin
/dev
/etc
/home
/lib and /lib64
/media
/mnt
/opt
/proc
/sys
/root
/sbin
/tmp
/usr
/var
/run
Practicals
Change size of the default directories
Touring the /proc Filesystem
Kernel Services and Configuration
This module explains how the Linux Kernel is configured, how the modules and utilities work, the function of sysctl and udev and Device Management.
Kernel Overview
Kernel Configuration
sysctl
Kernel Modules
Module Utilities
Module Configuration
udev and Device Management
Practicals
Manipulating system tunables with sysctl.
Changing the maximum process ID.
Working with Kernel modules.
Working with udev
Partitioning and Formatting Disks
This module explains how to work with disks in Linux by naming, partitioning and sizing them.
Common Disk Types
Disk Geometry
Partitioning
Naming Disk Devices
Sizing up partitions
Partition table editors
Practicals
Using a file as a disk partition image
Partioning a Disk Image file
Using losetup and parted
Partitioning a real hard disk
Linux Filesystems
This module explains how to work with Linux Filesystems, starting with the understanding that Linux treats everything as a file. IT covers Virtual filesystem (VFS), Filesystem Usage and Attributes, Major types (ext4, XFS, btrfs) and how to create, format, mount, swap and repair Filesystems.
Some Notes About Filesystems
Virtual Filesystem (VFS)
Filesystem Concepts
Disk and Filesystem Usage
Extended Attributes
ext4
XFS
Chapter 3. The XFS File System
btrfs
Creating and formatting filesystems
Checking and Repairing Filesystems
Mounting filesystems
Swap
Filesystem Quotas
Lab : Chapter Labs
Defragmenting a system.
Modifying Filesystem parameters using tune2fs.
Working with file attributes.
Mounting options.
Managing swap space.
Filesystem quotas.
Working with XFS
Working with btrfs
RAID and LVM
This module explains how to work with RAID and Logical Volume Management (LVM).
RAID
RAID Levels
Software RAID Configuration
Logical Volume Management (LVM)
Volumes and Volume Groups
Working with Logical Volumes
Resizing Logical Volumes
LVM Snapshots
How to Take ‘Snapshot of Logical Volume and Restore’ in LVM – Part III
13.4. Taking a Backup Using Snapshots
Lab : Chapter Labs
Creating a RAID device
Creating Logical Volumes
Processes
This module explains how to work with Linux processes. It begins with an overview of what processes are and how they work before procreding to illustrate how to create, monitor, prioritize and limit processes.
Programs and Processes
Process States
Execution Modes
Daemons
Creating Processes
Process Limits
Process Monitoring
Signals
niceness
Libraries
Practicals
Controlling processes with ulimit
Using ps and top
Monitoring process states
Examining signal priorities and execution
Package Management Systems
This module explains how to work with the major package management systems used in Linux distributions. Covers both RPM and DKPG as well as the use of version control systems such as git.
Software Packaging Concepts
RPM (Red Hat Package Manager)
DPKG (Debian Package)
Revision Control Systems
Lab : Chapter Labs
Using RPM
Rebuilding the RPM database
Using DKPG
Version control with git
Package Installers
This module explains how to use the major package installers, including yum, zypper and APT. It also explains the role that package installers play in automating software management and dealing with dependencies.
Package Installers
yum
zypper
20 Zypper Command Examples to Manage Packages on SUSE Linux
45 Zypper Commands to Manage ‘Suse’ Linux Package Management
APT
Lab : Chapter Labs
Basic yum commands
Using yum to find information about a package
Managing groups of packages with yum
Adding a new yum repository
Basic zypper commands
Using zypper to find information about a package
Basic APT commands
Using APT to find information about a package
Managing groups of packages using APT
User and Group Account Management
This module explains how to work with users and groups in Linux. It also covers how to work with passwords, restricted shells, the root account, Pluggable Authentication Modules (PAM), LDAP and SSH.
User Accounts
Management
Passwords
Restricted Shells and Accounts
How to use Restricted Shell to limit user access to a Linux system
Of Headless User Accounts and Restricted Shells
The root Account
Group Management
PAM (Pluggable Authentication Modules)
Authentication Process
Configuring PAM
LDAP Authentication
File Permissions and Ownership
SSH
Lab : Chapter Labs
Working with user accounts
Working with groups
Configuring PAM
Using chmod
Backup and Recovery Methods
This module explains how to backup data in Linux. It covers the tools that are used for backup and compression as well as for moving and copying files and also for restoring files.
Backup Basics
cpio
tar
Compression: gzip, bzip2 and xz and Backups
dd
rsync
dump and restore
mt
Backup Programs
Lab : Chapter Labs
Using tar for backup
Using cpio for backup
Using rsync for backup
Networking
This module explains how to conduct basic networking in Linux. It covers IP addresses, Hostnames, Network Interfaces, Routing and Name Resolution.
IP Addresses
Hostnames
Configuring Network Interfaces
Routing
Name Resolution
Network Diagnostics
Lab : Chapter Labs
Static configuration of a network interface
Adding a static hostname
Adding a network interface alias
Firewalls
This module explains how to work with firewalls in Linux. It covers both command line tools and GUI tools as well as firewalld. Zones and source management are discussed, as is service and port management.
Firewalls
Interfaces
firewalld
Zones
Source Management
Service and Port Management
Lab : Chapter Labs
Installing firewalld
Examining firewall-cmd
Adding services to a zone
Using the firewall GUI
Local System Security
This module explains how to secure systems against both internal and external threats. It covers how to identify risks and provides guidance on how to decide what protection is appropriate. Finally, it covers the basic types of security available (physical, filesystem, and security modules e.g. SELinux).
Local System Security
Creating a Security Policy
Updates and Security
Physical Security
Filesystem Security
Linux Security Modules
Lab : Chapter Labs
Using SELinux
Security and mount options
Using umask
Usint setuid and scripts
Basic Troubleshoot and System Rescue
This module explains how to conduct troubleshooting in Linux as well as likely sources of issues. It covers basic concepts in system rescue and recovery and how to identify corrupted filesystems.
Troubleshooting Overview
Things to Check: Networking
Boot Process Failures
Filesystem Corruption and Recovery
Virtual Consoles
Rescue Media and Troubleshooting
System Rescue and Recovery
Lab : Chapter Labs
Preparing to use Rescue/Recover media
Recovering from a corrupted GRUB configuration
Recovering from a password failure
Recovering from partition table corruption
Recovering using the install image