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IT & Software, Server Management

Linux Administration with Advance Troubleshooting Skills

Written by Curss Curss

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By the end of the course you will:

  • Be able to confidently use the Linux operating system to increase your productivity and Career.
  • Be able to perform everyday computing tasks from the Linux command line.

                            LINUX Basic Course Outline

Linux basic concepts,Introduction & History of Unix/Linux

  • Introduction to Unix
  • History of UNIX
  • What is LINUX
  • History of Linux
  • LINUX Distributions
  • Unix File System

Linux Commands Tutorials

  • Lecture on various commands with proper explanation with examples on live environment.
  • Overview of File System Structure
  • pwd, cd, ls, less, cp, file mkdir. more. mv, cat, rm rmdir, wc, dd, head, tail, touch, ln etc

Bash Variables & Standard Input output Redirecting

  • Familiar with Variables
  • Bash variable, Environmental variable & System Variables
  • Lab
  • Standard Input & Output Redirecting ( > , 2> ,&> )
  • Standard Input and Output
  • Redirecting Output to a File
  • Redirecting Output to a File
  • Lab

User management :

  • Understanding different types of groups and creation of groups
  • Creation of users in different groups
  • Understanding Passwd, Shadow Files
  • Understanding passwd aging
  • Creation of quotas for users, groups and file systems
  • Understanding users security files
  • password aging policy using chage commands

Permissions in Red Hat Linux

  • Basic File Permissions
  • User Based permissions groups
  • Permission Types
  • Change of permissions & ownership
  • Special Permissions
  • Setuid, Setguid, Sticky bit, ACL etc
  • Two Labs to demonstrate the permissions from real IT industry environment.

Linux Crontab

  • Overview of Linux Crontab & its format
  • Schedule a job for a specific period of time
  • Schedule a job for more then one instance (e.g. twice a day)
  • Schedule a job for specific range of time
  • Schedule a job every weekday during working hours
  • how to view crontab entries?
  • Schedule a job for every minute using cron

Linux Find Commands

  • Basic find commands for finding files with names
  • Find files based on their permissions
  • Search files based on owners & groups
  • Find files and directories based on date & time
  • Find files and directories based on size


  • Overview of OpenSSH
  • What Are Some Of The OpenSSH Features?
  • OpenSSH options are controlled through the /etc/ssh/sshd_config file
  • Lab Session


  • Overview about telnet
  • Configuration of telnet server on Linux
  • Xinetd Service

Process Management

  • Understanding ps commands with custom properties & Nice values etc
  • Different stats of a process like “D”, “S”, “T”, “Z” etc
  • Kill commands to terminate the process
  • Lab

Kernel Modules

  • What is Kernel & its features
  • Kernel Modules
  • Commands to manipulate the kernel (insmod,lsmod,modinfo,modprobe &rmmod)
  • How to know the name of the module or kernel driver for any deivce like lan
  • Lab

Disk Partitions, File Systems Creations & RAID Configuration

  • Creating the partitions in a simple disk using fdisk
  • Understanding the different options in fdisk utility
  • Creating File Sytems using (ext3/ext4/xfs FS)
  • Mounting/Umounting FS
  • Entry in fstab
  • Introduction to RAID
  • Concepts & features of RAID
  • RAID Level
  • How to configure different level of Raids like (0,1,5,6 etc)
  • Lab Sessions

Logical Volume Manager Administration

  • LVM Architecture Overview
  • LVM Components
  • LVM Logical Volumes
  • Logical Volume Creation Overview
  • Growing a File System on a Logical Volume
  • Logical Volume Backup
  • LVM Administration with CLI Commands
  • Using CLI Commands
  • Physical Volume Administration
  • Creating Physical Volumes
  • Displaying Physical Volumes
  • Preventing Allocation on a Physical Volume
  • Resizing a Physical Volume
  • Removing Physical Volumes
  • Volume Group Administration
  • Creating Volume Groups
  • Adding Physical Volumes to a Volume Group
  • Displaying Volume Groups
  • Removing Physical Volumes from a Volume Group
  • Changing the Parameters of a Volume Group
  • Activating and Deactivating Volume Groups
  • Removing Volume Groups
  • Overview about LVM Metadata
  • Metadata Contents
  • How to identify and recover failed LVM disk

  RPM (Red Hat Package Manager) 

  • Install : It is used to install any RPM package.
  • Remove : It is used to erase, remove or un-install any RPM package.
  • Upgrade : It is used to update the existing RPM package.
  • Verify : It is used to query about different RPM packages.
  • Query : It is used for the verification of any RPM package.

YUM (Yellowdog Updater, Modified)

  • Overview of YUM
  • Configuration& and installation of yum on Red Hat Linux Server
  • Lab-1
  • Lab-2

File Transfer Protocol on RHEL 7

  • Overview of FTP Server
  • Installation and configuration of FTP Server
  • Lab-1
  • Lab-2

Apache Web Server Administration

  • Basic Setup
  • Verify installation
  • Package files
  • Main configuration file(s)
  • Backup
  • Edit the httpd.conf configuration file
  • ServerRoot
  • PidFile
  • ServerName
  • Add site to /etc/hosts file
  • DocumentRoot
  • ErrorLog
  • Listen
  • Create your HTML documents
  • Start the Web Server
  • Access the web site
  • Local access
  • Internal & external access
  • Summary of basic setup

DNS (Domain Name System)

  • Overview of DNS
  • Understanding root & top level domains
  • How dns works practically
  • What happens when I type any website name in the address bar of the browser

Network File System (NFS) on RHEL 7

  • Overview of NFS Server
  • Installation and configuration of NFS Server
  • Lab-1
  • Lab-2

Automating Installation using kickstart

  • Overview of Kickstart Server
  • Features of Kickstart Server
  • Configuration & Installation of Kickstart Server
  • Configuration of dhcp, tftpd, nfs for Kickstart Server
  • Configuration of kickstart config file using graphical mode
  • PXE Boot Environment
  • Lab Session
  • Unattended Client boot and do the installation via network

How to find HBA details & Storage Connectivity & Scan new disks/luns on Red Hat Linux Physical Server 

  • How’s HBA/FC’s are connected to the Linux Physical Server
  • Lab on Live production Environment
  • How storage disks are connected to the server
  • What all the paths of a disk to access the SAN Storage via round robin request
  • Lab on understanding the disks paths via different HBA/FC Card.
  • How to scan new luns coming from storage on Red Hat Linux

Networking Concepts in RHEL 7

New Sets of commands introduced in RHEL 7 for managing the network interfaces.

  • Check the status of ethernet interfaces
  • Add and configure the new ethernet interface
  • Activate the network services
  • Commands to change the network properties of an existing interface
  • Delete the ethernet interface
  • Learning of various new commands related to managing network interfaces.
  • Overview of Routing Table
  • Understanding the output of netstat -rn or route -n output
  • Lab

Linux Performance Monitoring

  • Introduction about Performance monitoring in Linux
  • Important four subsystems that needs to be monitored.

1. CPU
2. Memory
3. I/O
4. Network

  • Familiar & understanding with CPU Utilization
  • Like Context switches, Run Queue, CPU utilization & Load Average
  • Familiar & understanding with Memory Utilization
  • Familiar & understanding with I/O Analyses
  • Familiar & understanding with Network Monitoring
  • Familiar with various Commands to manage performance issues in Linux Servers
  • top

Troubleshooting Linux Boot Problems in Red Hat Linux 6/7 (Basic System Recovery) – Advanced Level

  • Simple & step by step understanding of Linux Boot Process ( 2 detailed Sessions)
  • Overview of Red Hat Linux 7 and their features
  • Comparison of features of RHEL7 with RHEL6
  • Lab on Basic System Recovery (Initramfs file missing/Corrupted)
  • Lab on Basic System Recovery (Grub related issues like stage 1.5/2 grub is missing)-Part1
  • Lab on Basic System Recovery (Grub related issues like stage 1.5/2 grub is missing)-Part2
  • Lab on Basic System Recovery (Master Boot Record missing/corrupted)
  • Lab on Basic System Recovery (Critical files are missing like mount binary, incorrect entry in fstab etc)
  • Lab on Basic System Recovery (Critical files are missing like mount binary, incorrect entry in fstab etc)

Red Hat Enterprise Linux 7

  • Overview about RHEL7 with its new features
  • Comparison with RHEL 6
  • Lab on systemd service (Familiar with different systemd targets & new commands)
  • Rescue mode in RHEL 7
  • Lab on rescue mode
  • Emergency mode in RHEL 7
  • Lab on emergency mode
  • Troubleshooting mode (Overview and Lab)
  • Lab on Recovering the Root password in RHEL7
    • Resetting the Root Password Using an Installation Disk
    • Resetting the Root Password Using rd.break

Kdump configuration on RHEL 7

  • Overview of kdump
  • How to enable Kdump on RHEL 7
  • Lab Session

Red Hat Satellite 6.2

  • Overview of Satellite Server
  • Pre-Requisites (What needs to be done before initiating the Red Hat Satellite Server installation)
  • Registering the server using subscription manager
  • Installing the Satellite Server Packages & updating the Server
  • Installing satellite from the Offline Repositories.
  • Initial Configuration for the satellite server
  • Registering Satellite
  • Downloading/Uploading manifest (Importing manifest to Installed Satellite server)
  • Attaching a subscription
  • Create Red Hat Repo’s as per the enviornment requirement
  • Creating Activation
  • Registering server (Red Hat Satellite client)
  • Recap

Who is the target audience?

  • Graduate Students and also for those who are in job in Linux Administration & wants to get hands-on practical experience on troubleshooting & advance level of learning Red Hat Linux
  • IT professionals across a broad range of disciplines who need to perform essesntial administration tasks.


  • PC or Laptop with internet Connection
  • There is no formal prerequisites for this course; however, previous system administrator experience on other operating system would be very beneficial.


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