Red Hat Linux Administration & Advance level Troubleshooting
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Red Hat Linux Administration & Advance level Troubleshooting

Start on-demand career as a Linux Server Admin and learn from real IT professionals with live Environment Sessions.
3.8 (4 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
35 students enrolled
Created by Shikhar Verma
Last updated 9/2017
English
Current price: $10 Original price: $40 Discount: 75% off
5 hours left at this price!
30-Day Money-Back Guarantee
Includes:
  • 11.5 hours on-demand video
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Familiar with User administration & Permissions in Linux
  • Familiar with advance level of administration & troubleshooting's (Basic System Recovery) in Red Hat Linux
  • Created so many labs to explain each commands & troubleshooting with examples.
  • Good for beginners to start their career in Linux Administration to Advance level.
  • Familiar with four subsystems that needs to be monitored. CPU/Memory/IO/Network
  • Familiar with Process Management
  • Familiar with Kernel Modules
  • Learn 101 Basic Commands in Linux with examples & explainations
  • Understanding High Memory Utilization on Linux Server causing performance issues.
  • Understanding High CPU Utilization on Linux Server causing performance issues.
  • Understanding High Disk IO on Linux Server causing performance issues.
View Curriculum
Requirements
  • PC or Laptop with internet Connection
Description
  • This module consists of basic administration of Linux to advance level of booting troubleshooting & Basic System Recovery on Red hat Linux Version 5/6/7

The training is imparted by senior professional engineers. 

                            Red Hat 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 (101 Commands learning)

  • 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
  • dig, nslookup, rsync, scp, ssh, sftp, find, grep, locate, df, du, lsof, ps, top, who,cut, sort, vi, sed, awk, tar, gzip, bzip2 etc
  • useradd, userdel, usermod, groupadd, groupdel, id, chage, chroot, chown etc
  • mount, umount, fdisk, mkfs, fsck,/proc, uptime etc
  • ping, nslookup, telnet, ifconfig, ifconfig-a, netstat -a etc
  • chkconfig --list, chkconfig name --list, chkconfig name on/off, service name status, service name stop/start, runlevel, who -r, systemctl -at service, systemctl -t service --state=active, systemctl start name.service, systemctl enable name.service  etc
  • pvs, vgs, pvdisplay,lvs, lvdisplay, pvcreate, pvremove, vgcreate, vgrename, vgremove, vgextend, vgreduce, lvcreate, lvextend, lvreduce,fdisk, vgexport, vgimport, vgcfgrestore, vgcfgbakcup, watch, whoami, passwd, su etc

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
  • TROUBLESHOOTING

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.

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

  • 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

Logical Volume Manager Administration

  • LVM Architecture Overview
  • LVM Components

 -Physical Volumes
 -Logical Volumes

 -Volume Groups

  • LVM Logical Volumes

 -Linear Volumes

 -Striped Logical Volumes

 -Mirrored 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

  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.

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.

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 
  • vmstat 
  • iostat
  • free 
  • lsof 
  • tcpdump- Network Packet Analyzer


Troubleshooting Linux Boot Problems in Red Hat Linux 5/6/7 (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
  • 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 Linux 7 - Sessions to understands different systemd targets & new commands.
  • Red Hat Linux 7 - Sessions to understand different phases of booting modes like Rescue Mode/Emergency Mode & Troubleshooting Mode.
  • Lab on Booting to Rescue Mode on RHEL7
  • Lab on Booting to Emergency Mode/Debug shell on RHEL7
  • Lab on Recovering the Root password in RHEL7
    • Resetting the Root Password Using an Installation Disk 
    • Resetting the Root Password Using rd.break
  • Lab-10 on Repairing disk and file system errors on RHEL7



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
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Curriculum For This Course
66 Lectures
11:42:00
+
Introduction
2 Lectures 21:40

Introduction to Linux/Unix
14:58
+
Linux Commands tutorial (101 Commands)
14 Lectures 03:29:19
Understanding file structure in Unix/Linux
16:40


Basic Commands Learning-2
14:47

Basic Commands learning-3
13:25

Linux Commands on communication
10:53

Lab on Commands
13:41

Linux Commands on system status
13:32

Linux Commands on Awk, Sed etc
19:51

Linux Commands on User Administration
14:59

Commands on File Systems & System Information
21:57

Commands on Network Configurations
08:22

Commands on Service Status
15:23

Commands on LVM (Logical volume Manager)
16:44

Miscellaneous Commands in Linux
05:55
+
User Administration
5 Lectures 49:18

User Creation & Group Creation
09:42

Lab on User Administration
09:49

Understanding Password Aging Policy
12:44

Lab on Password aging policy using Chage Command
08:20
+
Simple way to understand permissions in Red Hat Linux
4 Lectures 34:09
  • This sessions makes the understanding of permission in Linux, how to change the permission and also how to change the ownership of a file. 
  • Also covered the understanding of special permissions in Linux like SetUID, SetGUID, Sticky Bit & Setfacl etc.
  • Simple and easy understanding for the beginners and intermediate level.


Simple way to understand permissions in RedHat Linux
10:57

  • This sessions makes the understanding of special permissions in Linux, how to change the permission and also how to change the ownership of a file. 
  • Also covered the understanding of special permissions in Linux like SetUID, SetGUID, Sticky Bit & Setfacl etc.
  • Simple and easy understanding for the beginners and intermediate level.
Lab on permissions in Red Hat Linux-Lab
09:11

  • This session covers special permissions in Linux like SetUID, SetGUID, Sticky Bit  etc.
  • Simple and easy understanding for the beginners and intermediate level.
Understanding Special permissions in Red Hat Linux
05:38

Lab on Special Permissions

Lab on Special permissions in Red Hat Linux-Lab
08:23
+
Process Management
3 Lectures 23:23
Process Management
07:49

Process Management -Lab
09:45

Kill Command to terminate a process in Linux
05:49
+
Disk Partitions & File Systems Creations using fdisk
1 Lecture 09:11
Creating the partitions in a simple disk using fdisk
09:11
+
Logical volume Manager Administration
3 Lectures 57:44
Overview of Logical Volume Manager Administration
18:52

Components of LVM
16:09

Lab on Logical Volume Manager
22:43
+
RPM (Red Hat Package Manager)
2 Lectures 32:02

This is an default open source and most popular package management utility for Red Hat based systems like (RHEL, CentOS and Fedora).

The tool allows system administrators and users to install, update, uninstall, query, verify and manage system software packages in Unix/Linux operating systems.

The RPM formerly known as .rpm file, that includes compiled software programs and libraries needed by the packages. This utility only works with packages that built on .rpm format.

There are five basic modes for RPM command

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.


Preview 12:02

Lab on Red Hat Package Manager
20:00
+
Networking Configuration in Red Hat Linux 7
2 Lectures 14:01

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.

Linux Network Configuration
08:27

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.

Networking Configuration in Red Hat Linux 7
05:34
+
Performance Monitoring in Red Hat Linux
10 Lectures 01:17:12
Introduction about performance monitoring
10:43


Disk IO Operations in Linux Servers
04:00

Understanding Network using tcpdump packet analyzer
04:52

tcpdump-Network Packet Analyzer
13:53

Top Command
12:34

Lab
05:31

vmstat command
10:20

Iostat Command
03:49

Understanding of memory management
05:55
3 More Sections
About the Instructor
Shikhar Verma
4.2 Average rating
7 Reviews
63 Students
3 Courses
Solution Architect in Linux,HP-UX

My Name is Shikhar Verma and I am in IT industry since 2005 and currently working as Solution Architect.

I had been worked as Senior Linux Administration on many MNC's and global projects like, I had worked for AT&T Bell South, US Project for 3 years as Senior Linux Administrator and also I got an opportunity to work for global Johnson n Johnson project for 2 years as a consultant for Linux & HP-UX Environment. 

My Primary Skills is Linux Administration and Secondary in HP-UX and AWS Cloud( Amazon Web Services), Shell Scripting etc