Vind een opleiding

Linux Administration with Troubleshooting Skills - Hands On - Udemy

Doelgroep: 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.
Duur: 30,5 uur in totaal
Opleidingsvorm: online/e-learning
Richtprijs: $114.99
Taal: Engels
Aanbieder: Udemy

>> proefles

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.

Course Content

 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 profile, Variables & Standard Input output Redirecting

  • User's home directory

  • .bash_profile, .bashrc & .bash_logout

  • How to set PATH & alias in .bashrc profile

  • 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

Linux 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.

Controlling Access to files with ACLs

  • Access Control List Concepts

  • Set ACL's on files

  • Default ACL

  • Practice Lab Session on set acl on files

  • Practice Lab Session on set acl on directories

  • Practice Lab Session on mask to limit the set of permissions

  • Practice Lab Session on default ACL

  • Practice Exercise - Scenario based activity

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, 10 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

  • Yum History Command

  • Reverting and Repeating Transactions like undo & redo using yum command

Linux OS Minor Upgrade

  • Linux OS upgrade from RHEL 7.1 to RHEL 7.2

  • Lab Practice Sessions

File Transfer Protocol

  • 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

Samba Server

  • Overview of Samba Server

  • Features of Samba Server

  • How Samba Server Works

  • Samba File sharing Server

  • CIFS File System

  • Practice Lab Sessions

Network File System  (NFS) on Linux

  • 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

Networking Concepts in Linux

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 

  • vmstat

Troubleshooting Linux Boot Problems in Red Hat Linux 6 (Basic System Recovery)

  • 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)

Overview of 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

Troubleshooting Linux Boot Problems in Red Hat Linux 7 (Basic System Recovery)

  • Lab on Basic System Recovery (Initramfs file missing/Corrupted)

  • Lab on Basic System Recovery (Grub related issues

  • 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)

GRand Unified BootLoader (Grub2)

  • Overview of Grub

  • Grub Configuration file

  • Features of Grub2 and its comparison with Legacy Grub

  • Practical Lab Session - Different commands to run at Grub2 prompt

  • Practical Lab Session - Boot from Grub (Selecting Kernel & Initramfs)

  • Practical Lab Session - How to make your grub password protected

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

Managing SELinux Security

  • Introduction - SELinux

  • SELinux Security Concepts

  • Changing SELinux Modes

  • Practice Lab Sessions

  • Changing SELinux Contexts

  • SELinux Booleans

  • Audit logs & troubleshooting SELinux

Backup and Restore

  • Overview of Backup

  • Various commands for backup

  • Types of backup

  • Full backup, Incremental backup and differential backup

  • dump command to take backup & restoration

Advanced Linux Commands

  • 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

  • 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

  • last lecture

>> Meer info