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Udemy - Linux Administration with Troubleshooting Skills - Hands On

      Author: Baturi   |   21 September 2021   |   comments: 0



Udemy - Linux Administration with Troubleshooting Skills - Hands On
Last Update: 9/2021
Duration: 38h55m | Video: .MP4, 1280x720 30 fps | Audio: AAC, 44.1 kHz, 2ch | Size: 14.8 GB
Genre: eLearning | Language: English


A Project-Based Approach to learn complete Linux Administration with Bash Shell Scripting in 40 Hours (375+) lectures.
What you'll learn:
Linux Administration with Troubleshooting Skills
Linux basic concepts,Introduction & History of Unix/Linux
Linux Interview Questions and Answers
Bash profile, Variables & Standard Input output Redirecting
Linux User Administration
Permissions in Red Hat Linux
Controlling Access to files with ACLs
Process Management
Kernel Modules
Disk Partitions, File Systems Creations & RAID Configuration
Logical Volume Manager Administration
RPM (Red Hat Package Manager)
YUM (Yellowdog Updater, Modified)
Linux OSMinor Upgrade
FTP - File Transfer Protocol
Apache Web Server Administration
DNS (Domain Name System)
Samba Server Concepts & Configuration
Network File System (NFS)
Automating Installation using kickstart
Networking Concepts in Linux
Linux Performance Monitoring
Troubleshooting Linux Boot Problems in Linux (Basic System Recovery)
Overview of Red Hat Enterprise Linux 7
GRand Unified BootLoader (Grub2)
Kdump configuration on RHEL 7
Overview of Red Hat Satellite 6.2
Managing SELinux Security
Backup and Restore
Linux Commands Tutorials
Advanced Linux Commands
Linux Crontab
OpenSSH
Postfix Mail Server Configuration
Requirements:
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.
Description:
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
· 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.
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
OpenSSH
· Overview of OpenSSH
· What Are Some Of The OpenSSH Features?
· OpenSSH options are controlled through the sshd_config file
· Lab Session
Telnet
· 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 thehttpd.conf configuration file
· ServerRoot
· PidFile
· ServerName
· Add site to 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
Postfix Mail Server Configuration
· The structure of the Email System
1.1 Mail User Agent
1.2 Mail Transfer Agent
1.3 Mail Delivery Agent
1.4 SMTP
· Configuring an RHEL Email System
· Postfix Pre-Installation Steps
· Installing Postfix on RHEL 7
· Configuring Postfix
· Starting Postfix on an RHEL System
· Configure a Null Client
· Relayhost
· Introduction Dovecot, Imap & pop3
· Configuring Dovecot
· Thunderbird - Mail User Agent ( Configure Mail Box)
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. Memory3. IO4. 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
o Resetting the Root Password Using an Installation Disk
o 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.
Linux Bash Shell Scripting: A Practical way of Learning
Practical approach to learn and explore the shell scripting with various industrial projects
Introduction of Shell Programming
· What is Bash Shell?
· Types of Shell available in Linux
· About Shell Scripting
· Bash Shell Startup Scripts
· User's Home Directory - .bash_profile, .bashrc & .bash_logout
· Shebang
· Create a simple Shell Script
· Setting up permissions on a script
· Debug a Script
The Shell Variables & Environment
· Bash Variables
· Environmental Variables
· System Variables
· Assign values to shell variables
· Customize the bash shell environments
· set, env & export command
· Rules for naming variable name
· Simple Script using echo command
· Quoting
· There are three Type of quoting
· The double quote
· The single quote
· The Backslash
· User's Input via Keyboard
· Read Command
· IFS
· Practice Lab Session
Arithmetic Operations
· Performing Arithmetic Operations
· Create an integer Variable
· Create the Constants Variable
· Path name expansion
· Wildcards
  • , ?, [..] etc
    · Create & use aliases
    · Practice Lab Sessions
    Industrial Project to Completely Automate the Pre-validation report
    · A Shell Script to collect required information from a server
    · The Bash Color
    · Writing Color Text
    · Various Color Codes for Foreground & Background Text
    · Lab Session on Bash Color
    · Script to fetch the system information i.e system_details
    · Schedule the script via cron
    · Final Script to fetch the environment report on a single click
    · Lab Session
    Conditional Statements (Decision Making)
    · Overview of conditional execution
    · What is Condition?
    · Boolean value (True & False)
    · If else statement
    · Lab Session on if..else..
    · if..elif..else..fi statement
    · test command
    · Logical AND &&
    · Logical OR !!
    · The exit status of a command
    · Numeric Comparison
    · String Comparison
    · File Attributes Comparison
    · Shell Command line parameters
    · Positional parameters via special shell variable $1, $2, $3,...,$N.
    · Practice Lab Session
    Bash Loops
    · Overview of loop statement
    · for loop statement
    · Lab on for loop
    · for loop using C like Syntax
    · for loop using command line arguments
    · Nested for loop statement
    · Chessboard using nested loop statement
    · While loop statement
    · Lab Session - read a text file line-by-line or using IFS
    · infinite while loop
    · case statement
    · Lab session on case statement
    · Create a simple menu driven program or automation tool Using Case Statement
    · Industrial Project
    · Discussed various scripts using for or while loop
    Shell Redirection & Process Management
    · Input Output Redirection in Linux
    · Lab Session on redirection
    · Pipelines in Linux
    · tee command
    · file descriptor (fd) to file for output
    · file descriptor (fd) to file for input
    · file descriptor (fd) for reading & writing
    · Practice Lab Session
    · Overview of a Process
    · Foreground & background Process
    · Various Stats of a process
    · Lab Session
    Functions
    · Defining functions
    · Displaying functions
    · Nested functions
    · Lab Session - writing functions
    · Calling functions
    · Local & global variables
    · Passing arguments into a function
    · return statement
    · Practice Lab Sessions
    AWK
    · Introduction Awk
    · Pattern matching
    · User defined variables in awk
    · Awk pre-processing
    · Awk post-processing
    · Practice Lab Session
    SED Stream Editor
    · Introduction
    · Replacing or substituting string.
    · Replacing the nth occurrence of a pattern in a line
    · Replacing all the occurrence of the pattern in a line
    · Changing the slash (/) delimiter
    · Using & as the matched string
    · Duplicating the replaced line with /p flag
    · Replacing string on a specific line number
    · Replacing string on a range of lines
    · Replace on a lines which matches a pattern
    · Deleting lines
    · Add a line after a match
    · Add a line before a match
    · Last Lecture
    Who this course is for:
    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.
    Homepage
    https://www.udemy.com/course/red-hat-linux-administration-advance-level-troubleshooting/


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