Complete Linux Training with Troubleshooting Skills

[OneDDL]

Free Download Complete Linux Training with Troubleshooting Skills
Last updated 7/2023
Duration: 41h 19m | Video: .MP4, 1920x1080 30 fps | Audio: AAC, 44.1 kHz, 2ch | Size: 14.1 GB
Genre: eLearning | Language: English
A project-based approach to acquire Linux skills to enhance your career and advance: Over 40 hours with 400+ 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 OS Minor 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 are no formal prerequisites for this course; however, previous system administrator experience on another 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 in a 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 a real IT industry environment.
Controlling Access to files with ACLs
· Access Control List Concepts
· Set ACLs on files
· Default ACL
· Practice Lab Session on set acl on files
· Practice Lab Session on set acl on directories
· Practice Lab Sessions on a 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 than one instance (e.g. twice a day)
· Schedule a job for a 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 device 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 the different levels 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 of 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 an 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 the host's file
· DocumentRoot
· ErrorLog
· Listen
· Create your HTML documents
· Start the Web Server
· Access the website
· 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)
Securing & hardening a Linux System
· Linux Physical Security
· How to break root password
· Securing the grub menu
· Reset root password from rescue mode
· BIOS Protection
· General Security
· Keep your system updated
· Turn off IPv6
· Disable USB Stick to detect
· Restrict Users to Use Old Passwords
· Check Password Expiration of a User
· Password Expiration - Lab Session
· Verify accounts for an empty password
· Verify accounts with "Zero" UID
· Review logs regularly
· Keep /boot as read-only
Managing Server Firewalls
· Firewall concepts
· About nftables, features, and advantages of firewalld
· Firewalld components, pre-defined zones
· How packet flows through the firewall
· Check firewalld services - Lab Session
· Adding and Removing Services & Port from Firewall Server - Lab Session
· Add Services Permanently in Firewalld - Lab Session
· Add HTTP Service in firewalld - Lab Session
· Port forwarding - Lab Session
· Conceptual discussion about Masquerading, Packet Flow in Firewalld
· Masquerading with Port Forwarding - Lab Session
· About Rich Rules in Firewalld
· Specifically allow a Server using Rich Rules - Lab Session
· Allow Telnet Port, SSH with log-prefix using Rich Rule - Lab Session
· Accept, Reject, Drop - Lab Session
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 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 need to be monitored.
1. CPU
2. Memory
3. IO
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
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
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 the variable name
· Simple Script using the 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











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