Learning guidelines

Content

1. Operating System families – Unix – from the beginning to current versions

2. Application hosted and where is it used

3. PC architecture – where is the OS place

4. Virtualization concepts

5. Overview for preparing the environment

6. Environment Prepare the environment.

7. Application needed – Virtual Box or AWS account.

8. Centos as basic OS for training Connecting to Linux

9. SSH and Putty 4 Lesson 1: Presentation of environments”

10. Environment in Cloud

11. AWS used as it have free tier option with one year free usage of one VM

• How to connect to AWS Cloud

• How to create an account

• What are basic AWS services – EC2 and VPC

• How to use them for quick VM provision

• How to connect – Putty and keys

DYI:

• Create own AWS account

• Provision new VM.

• Terminate the VM Tools needed: WEB Browser, valid email and valid credit card (no money will be taken from it)

Putty and puttygen – download.

• What is putty why we need it

• How to convert a aws pem file to ppk

• What are pem and ppk formats for keys. What are ssh keys

• Connect to AWS provisioned VM

DYI:

• Convert own account pem to ppk file

• Connect to AWS Hosted VM

• Hit command: sudo poweroff Tools needed: browser, internet, aws account, putty and puttygen

Environment locally – Virtual Box application used as it is free of usage and no license usage costs:

• What is Virtual Box and what other application for virtualization on desktops

• How to create a VM and what are the components of a VM locally hosted

DYI:

• Download and Install Virtual Box

• Download Centos minimal

• Create a VM Tools needed – browser, PC or laptop, some space on disk, some RAM and internet connectivity 2.3 Lesson 4: Install Centos on local environment:

1. Environment locally – Install Centos

• Download and install Centos on Virtual Box

• What steps are needed during installation

DYI:

• Download and Install Centos on Virtual Box

• Connect to VM Tools needed – browser, PC or laptop, some space on disk, some RAM and internet connectivity

Basic Linux Files. Folders/directories. Symlinks Tools – touch, cd, mkdir/rmdir, cp, mv, ll, ls, more, less, rm, grep, cat, df/du, tail

Presentation of Linux filesystem:

• What is a file

• What is a folder

• What is linux filesystem format (not to be confused with disks/filesystems)

• Directories: Managing directories

• Create/remove a directory – mkdir/rmdir

• List a directory – ls, ll - Managing files

• Create/remove a files – touch

• View file content – cat, less, more, grep, tail, head

• Copy files – cp, scp, mv - Working with symlinks

• What is a symlink

• Why to use it and where

• How to create a symlink

• Create a folder

• Create a file and move it between folders

• Create symlink to a folder and copy data to symlink

• Delete folders and files

Basic Linux Users and Groups Useradd, passwd, /etc/passwd, /etc/shadow

• Working with Users, Groups, and Directories

• Creating and Deleting User Accounts

• Change password with passwd

• Specific commands and data that can be added with useradd

• “root” user - important files for users

• /etc/passwd

• /etc/shadow - Understanding sudo

• What it is being used

• visudo

• sudoers and how to allow user to do root commands

DYI:

• Add user with useradd and adduser (to be installed from repo)

• Delete user with userdel. Where and what should be removed

Basic Linux Files. Folders/directories

Symlinks Permisions and owenship: Chmod and chown - User and Group Permissions

• Overview of the file and folder permissions - Read, Write & Execute Permissions

• chmod command

• ls, ln - Viewing File Permissions

• chown command - Changing permissions

DYI:

• Work with permission and ownership

• Changing permission and ownership

Locating needed info find, locate

• find

• locate

Working with archive – tar, gzip, unzip - archiving and de archiving

• archiving with tar command

• archiving with zip command

• untar and unzip - work with archived files

• why do we need archived files

• zcat and zgrep

• Basic Linux Package installation – repositories vs yum vs sources vs rpms

• What is a software on Linux

• User and Group Permissions - Overview of the file and folder permissions

• Read, Write & Execute Permissions

• chmod command - Viewing File Permissions

• ls, ln: Changing permissions

• chown command 10 Basic Linux Package installation

• working with directories – finding free space, find partitions space,

Basic Linux Processes

• ps, kill 2 13 Basic Linux Networking – basic concepts

• OSI, TCP/IP, IP addressing, IP and subnet mask, Ports (UDP/TCP), applications

Basic Linux Networking

• check interfaces - route, ifconfig, ifup, ifdown, arp

• Configure interface

• troubleshooting

• tcpdump, netstat, ping, mtr, telnet

Advance Linux Networking

• tunnels (SSH, GRE), iptables, mangle, routing tables, iproute, bind,

Advance Linux Operating System

• Daemon Management

• runlevels, chkconfig, init.d

• Scripting

• bash

• provision (vagrant and Ansible)

Advance Linux Package installation

• Install basic LAMP server and have a web page working

• Install files from source

Advance Linux File Systems

• types, fstab, mounts

• check, volumes, LVMs, Storage

Advance Linux RAM

• free, htop and top, balloon

Advance Linux Processes

• lsof