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System Admin

This course is designed for students who are looking for in-depth understanding of the Linux Operating System and it's industrial use case. After completion of this course one can easily manage day to day system admin tasks such as automation of commands, file management, monitoring logs and much more.

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Chapter 1 | Concepts and Editors

Basic Networking concepts, About proprietary and Open source software, About Linux, Duties of system administrator and Linux engineer. VI editor, Installation of Linux File system

Chapter 2 | Directory Structure and Connectivity

Linux Directory Structure, about root user and normal user, remote connectivity using Putty, Kitty, VNC, RDP

Chapter 3 | Boot Process

Linux Boot process, Grub boot loader,systemctl domain, targets, Service management,Booting in rescue mode,single user mode, recover root password, setup grub password

Chapter 4 | Mounting File Systems

Disk Portioning,formatting, Linux filesystem type ( ext2,ext3…), mounting filesystem, /etc/fstab, Journaling attributes, auto and manual mounting, file and disk management tools, the lost+found directory

Chapter 5 | User Essentials

Linux User Essential, user management, user roles default parameters, Ownership, working with groups, setting user environment, login configuration files, password essential, related security, /etc/nologin, superuser equivalent

Chapter 6 | Linux Networking

Networking service overview, concept of IP,Subnet mask, Gateway and DNS , IP configuration, Multiple IP, range of IP, MAC address, network configuration file locations and format, routing table, Linux as a router, Network manager, Networking tools, Link status and other related commands.

Chapter 7 | Linux Permissions

Linux Permissions/ownership concept, traditional and octal method, Setting default permission ( UMASK), Special Permission ( SUID,SGID,Sticky bit), File and folder attributes, ACLs,Soft and Hard Links, Inode concepts.

Chapter 8 | Linux Scheduling

One time automation (AT), Repetitive automation ( cron and anacron ), various examples, Maintenance scheduling, Backup and restore, Scheduling Security.

Chapter 9 | Linux Commands

Basic Commands, Linux Monitoring Commands, Linux Important Commands, Yum Server

Chapter 10 | Shell Scripting

Shell Basics (Types of shells, Shell functionality Environment) Writing first script(Writing script & executing basic script, Debugging script, Making interactive scripts,Variables (default variables), Mathematical expressions) Conditional statements(If-else-elif, Test command,Logical operators-AND,OR,NOT, case –esac,Loops, While,For,Until, Break & continue) Command line arguments(Positional parameters, Set & shift, IFS, Break & continue) Functions & file manipulations (Processing file line by line,Functions) Regular Expression & Filters (What is regular expression, Grep,cut ,sort commands Grep patterns) SED & AWK Processes (Concept of process in Unix, Background processes, Scheduling processes -At, batch & Cron) Misc (rapping signals, String substitutions / manipulations)

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