Linux Training

• Basics of Linux Operating system
• Execution of Linux command s 
• Boot process management in linux 
• Configuration and assigning Ip address 
• Working with various directories on Linux 
• SAMBA Server configuration

Following are the job roles whom this course has been designed for:

• Software Engineers 
• Linux Developers
• Linux Administrators 
• IT Professionals

• Linux is the widely used open-source operating system by a large section of the companies across the globe. 
• This OS is highly flexible and enables the organization to configure, manage and secure your systems. 
• Taking up this course will help you in securing the high paying in the corporate world with great career scope. 

There are no prerequisites to take up this course. Anyone who wishes to build their career in this career promising field can join.

Yes, upon the successful completion of the Linux training you will receive the course completion certificate from SK Trainings. This certificate is valid across all the top MNCs and simplifies your job search process.

• CENTOS
• DEBIAN
• POSIX

• CS graduates
• System engineer and administrators

• Operational experience on Microsoft Windows or any other operating system

• Option 1:-Laptop / Desktop with i3 processor, 8 GB RAM, 60 GB free disk space with Windows 7/8 and VMware Workstation installed having internet connectivity.
• Option 2: Any Server Class Processor ( e.g. Xeon ), 32 GB RAM, 120 GB Disk ( No OS required )

• Understanding *nix History
• Analyzing Linux flavors and distributions
• Understanding Linux kernels and shell
• Roadmap to RHEL 7.0

• Understanding minimum requirements.
• Creating Partition Layout.
• Installing OS
• Understanding RPM and YUM
• Setting up custom/DVD, YUM repository
• Doing post Installation up-gradation

• Understanding file system and directory structure
• Arrangement of directories and their significance
• Understanding Linux bootup and control initialization sequence
• Commands to be thought: pwd, ls

• Understanding shell locations and shell behavior
• Understanding command, options and arguments

• Getting help,( man, --help, info, tab, double tab), online help forums

• Commands to be thought: ls, touch, cat, mkdir, rmdir, cd, cp, mv, ls --, stat, file, cp, mv, ln, pwd, whereis, find

• Using vi editor
• Advanced vi editor

• Files: /etc/passwd, /etc/shadow, /etc/group, /etc/skel
• Commands: useradd, usermod, userdel, groupadd, groupmod, groupdel

• chmod, chown, chgrp, setuid, setgid, stickybit

• setfacl, getfacl,

• Significance of /proc directory and procfs
• Commands: ps, top, who, who am i, kill, pkill, free

• Commands: renice, nice

• Configuring the Default Runlevel
• service, chkconfig and systemctl

• Files: /etc/ssh/sshd_config | /etc/ssh/ssh_config | ~/.ssh/ | ~/.ssh/authorized_keys | /etc/nologin
• Disable OpenSSH Server
• Only Using SSH Protocol 2
• Configure Idle Log Out Timeout Interval
• Disable root Login via SSH
• Enable a Warning Banner
• Enabling Passwordless authantication

• Files:- /etc/sysconfig/network-scripts/ifcfg-* | /etc/hosts | /etc/resolv.conf
• Commands: hostnamectl, nmcli

• Commands: scp, rsync

• Setting up a FTP server
• Setting up a Kickstart configuration file
• Initiating a Kickstart installation

• ^ (Caret) $ (Dollar) \ (Back Slash) [ ] (Brackets) [^ ] . (Period) * (Asterisk) \{x,y\} \{x\} \{x,\}

• Files: /etc/rsyslog.conf, /var/log/*, log rotation,

• Commands: &, bg, fg, at, crontab

• List, create, delete, and set partition type for primary, extended, and logical partitions.

• Create and remove physical volumes, assign physical volumes to volume groups, and create and delete logical volumes.
• Configure systems to mount file systems at boot.
• Add new partitions and logical volumes, and swap to a system non-destructively.
• Commands: fdisk, parted, mkfs, mount, pvcreate, vgcreate, lvcreate, vgextend, lvextend, resize2fs, xfs_growfs, df, du

• Creating a NFS share and understanding exportfs

• Mounting a NFS share

• share and understanding samba configuration files
• Mounting a SMB share

• Configuring an iSCSI target
• Configuring an iSCSI initiator to connect to iSCSI target

• Recovering from a system upgrade that left system unbootable
• Simulating a failure and entering into rescue mode

• Understanding IPv6 implementation in Linux
• Add IPv6 address in Linux Box

• Commands: iptables, firewalld

• Configure a caching-only name server.
• Configure a caching-only name server to forward DNS queries.
• Configure a forward lookup zone and reverse lookup zone.

• Apache
• vsptpd
• samba
• dhcpd

• Creating a basic bash shell script
• Understanding header
• Assigning executable permission
• Converting a script to a command

• $?, if, for, do, case, file operations, arithmetic operations

• Understanding ~/.bashrc, /etc/profile, and /etc/passwd

Linux kernel refers to the low-level system software. It is used to manage resources and provide an interface for user interaction. Yes, it is legal to edit Linux Kernel. Linux is released under the General Public License (General Public License). Any project released under GPL can be modified and edited by the end users.

The basic components of Linux are:

• Kernel: It is the core component of the Operating System that manages operations and hardware.
• Shell: Shell is a Linux interpreter which is used to execute commands.
• GUI: GUI stands for Graphical User Interface which is another way for a user to interact with the system. But unlike CLI, GUI consists of Images, Buttons, TextBoxes for interaction.
• System Utilities: These are the software functions that allows the user to manage the computer.
• Application Programs: Software programs or set of functions designed to accomplish a specific task.

Swap Space is the additional spaced used by Linux that temporarily holds concurrently running programs when the RAM does not have enough space to hold the programs. When you run a program, it resides on the RAM so that the processor can fetch data quickly. Suppose you are running more programs than the RAM can hold, then these running programs are stored in the Swap Space. The processor will now look for data in the RAM and the Swap Space. Swap Space is used as an extension of RAM by Linux.

You can use any of the following commands:

• free -m
• vmstat
• top
• htop

inode is the unique name given by the operating system to each file. Similarly, process id is the unique id given to each process.

Virtual Desktop is a feature that allows users to use the desktop beyond the physical limits of the screen. Basically, Virtual Desktop creates a virtual screen to expand the limitation of the normal screen.

There are two ways Virtual Desktop can be implemented:
1.  Switching Desktops
2.  Oversized Desktops

A daemon is a computer program that runs as a background process to provide functions that might not be available in the base Operating System. Daemons are usually used to run services in the background without directly being in control of interactive users. The purpose of Daemons are to handle periodic requests and then forward the requests to appropriate programs for execution.

A Microprocessor is a device that executes instructions. It is a single-chip device that fetches the instruction from the memory, decodes it and executes it. A Microprocessor can carry out 3 basic functions:

1.  Mathematical operations like addition, subtraction, multiplication, and division
2.  Move data from one memory location to another
3.  Make decisions based on conditions and jump to new different instructions based on the decision. 

By running the following command:
$ mount -l

You can use the diff command for this:
$ diff abc.conf xyz.conf

The touch command can be used to create a text file without opening it. The touch command will create an empty file. The syntax is as follows:
$ touch
Suppose you want to create a file named sample.txt, then the command would be:
$ touch sample.txt

The .z extension means that the file has been compressed. To look at the contents of the compressed file, you can use the zcat command. Example:
$ zcat sample.z

Open the terminal and run:
$ echo $SHELL
This will print the name of the Shell being used.

$ vim -R

$ vim +

The export command is used to set and reload the environment variables. For example, if you want to set the Java path, then the command would be: $ export JAVA_HOME = /home/user/Java/bin

$ service --status-all

This command is used to display the free, used, swap memory available in the system. Typical free command output. The output is displayed in bytes. $ free

LILO stands for LInux LOader. LILO is a Linux Boot Loader that loads Linux Operating System into the main memory to begin execution. Most of the computers come with boot loaders for certain versions of Windows or Mac OS. So, when you want to use Linux OS, you need to install a special boot loader for it. LILO is one such boot loader. When the computer is started, BIOS conducts some initial tests and transfers control to the Master Boot Record. From here, LILO loads the Linux OS and starts it. The advantage of using LILO is that it allows fast boot of Linux OS.