Introduction of Operating System

Operating System is an as an interface between  Hardware, software and user.

Hardware :  Computer hardware is the physical parts or components of a computer.

Example:- Keyboard, Computer data storage, Hard disk drive (HDD), Graphic card, Sound card, Memory (RAM), Motherboard, hardware consists of CPU, Main memory, I/O Devices, etc.

Software: There are two types of software:

1. Application software : Application software are computer programs that allow users to perform specific tasks. It is generally a program or collection of programs used by end users.

Any application which we can install on any OS like:- Media player, Office, Games etc. comes under application software.

2. System software : All Operating system comes under system software. 

Operating System, program that manages a computer’s resources, especially the allocation of those resources among other programs.

Examples: Window, Linux, Mac, Unix, Mint etc.


Task of Operating System:

•     Controlling and managing file systems.
•     Managing I/O Devices & Handling "interrupts" generated by the I/O  controllers.
•     Set up the System requests.
•     Hiding the complexities of hardware from the user.

Chapter:1 Linux Basics

What is Operating system and its types?

What is Computing and its types?

History Of Unix and Linux.

What is Linux?

Unix vs Linux vs Windows vs MAC

Opensource vs Boundsource

GPL, GNU, FSF

Linux Principles
What is Kernel?

Function of Kernel?

What is Boot loader?

Chapter:2 Linux distributions installation

Installation on Physical box and Virtualbox/Vmware/KVM

1) RHEL5,RHEL6,RHEL7 installation.

2) Centos5,Centos6,Centos7 installation.

3) Ubuntu installation

4) Debian installation

5) Suse installation

6) Kali Linux installation

7)Linux pendrive bootable and install from pendrive.

Chapter :3  Login environment - Graphical & Virtual console

Linux multiuser & multiprocess view show.

Linux desktop environment - GNOME & KDE

Linux graphical work :- Adding panels, applets, theme change, icon change and complete linux graphical etc.

Chapter:4 Software installation (Graphical and Cli)

Open Office (Word,Excel,Powerpoint), Email Client (Thundirbird, Evolution), Chat application(Pidgin, Skype, Jitsi), Media player (Totem,Vlc), Games installation, Remote application  (Teamviewer, Vncviewer,), Web Browers (Chrome, Firefox), Image tool(Gimp,Pinta,Darktable,PhotoQt,Krita)

Using RPM/YUM

Chapter :5 Basic commands.

aspell,arch,ac,arp,bc,cat,cal,cut,cd,cp,clear,chvt,date,diff,dir,dmesg,dmidecode,echo,exit,history,head,factor,file,less,id,ls,ll,more,sort,sed,startx,su,stat
pwd,rm,tree,tail,tailftty,tr,touch,uname,uptime,unalias,uniq,w,wc,wget,who,whoami,wall

Chapter :6 System Documentation and  Helping tools

(man, info, whatis, whereis, locate,  find, which, /usr/share/doc,  online helping communities)

Chapter :7 Linux File/directory management and text file  editors

(cat, touch, mkdir, cd, rm, rmdir, nano,  vi, vim, gvim, gedit, emacs).
Redirect Output to a File or Program.
1/0 Redirection and Pipelines.
Matching Text with grep,pgrep.
Regular Expressions Fundamentals.
Linux File  Hierarchy concepts
Absolute and relative path.

Chapter :8 Permissions  and User/group management
(useradd/adduser, passwd, userdel, groupadd, groupdel, usermod, system-config-users, chmod, chown, chage, umask, suid, sgid, sticky bit,
ACL( getfacl, setfacl)
Sudo
Important files related to user and group :
/etc/passwd
/etc/group
/etc/shadow
/etc/gshadow
/etc/login.defs
/etc/default/useradd

Chapter :9  Process and task scheduler
(ps,pgrep,pidof,kill,killall,pkill,nice,renice,top,jobs,bg,fg, gnome-system-monitor, jobs, at, crontab)

Chapter :10 Compress / Decompress and Backup restore
(gzip,  gunzip, bzip2, bunzip2, tar, cpio, rsync)

Chapter:11  Adding Disks, Partitions, and File Systems to a Linux System.
Creating Partitions with ext2/ext3/ext4 and xfs, Managing swap space.
Difference between ext2, ext3, ext4, xfs  and raiserfs.
(fdisk, parted, mkfs, e2label, blkid, fsck, tune2fs, dumpe2fs)


Chapter:12  Printing in Linux
(lpr,lpq,lprm,lp,lpstat,cancel,lpstat,ps2pdf,mpage)

Chapter:13 Quota in Linux
(usrquota,grpquota,quotacheck,quotaon,quotaoff,edquota,setquota)


Chapter :14 Boot Process
Linux boot process  explain
Boot  process explain
root passwd break.
Grub passwd apply  and break

Chapter :15 Networking
(IP address, Subnet mask and  Defalut gateway concept)
(hostname,  ifconfig, ip add r,ping,  route,  netstat, ifup,  ifdown, host, dig, nslookup,  traceroute, mtr, wget, )

Chapter :16 Runlevel and critical files

(runlevel, init, chkconfig, ntsysv)
/etc/inittab
/etc/grub.conf
/etc/rc.d/*

Chapter :17 TELNET and SSH  Server

ssh,ssh-keygen,ssh-copy-id, scp, telnet, nc

Chapter: 18  LVM
Physical volume, Volume group, logical volume creation.
Logical volume extend and reduce.
Logical volume enable and disable.
LVM   snapshot and restore.
(lvcreate, lvextend, lvreduce, lvchange, lvs, lvdisplay,  lvscan, lvconvert, lvdump,  lvresize, vgcreate, vgdisplay, vgs, vgscan, vgimport, vgexport, vgchange, pvcreate)

Chapter: 19  Yum server

Chapter: 20 Apache Web server

Chapter: 21 DHCP server

Chapter: 22 DNS  server

Chapter: 23 Postfix mail server

Chapter: 24 Samba server

Chapter: 25 NFS server

Chapter: 26 Firewall(Iptable,firewalld)

Chapter:27  Troubleshooting


Basic Linux training covers:

• Training of above content and each day training video.
• Above training covers all linux distro in  which production work(RHEL5+6+7,Centos5+6+7,Suse,Ubuntu)
• Interview questions/answers preparation.
• Resume preparation.

Please Contact for Individual/Group/Online/Classroom training :

merhca@gmail.com