Linux Tutorial

Welcome to the Linux Knowledge Base and Tutorial

so you want to learn how to use the Bash command line interface (terminal) on Unix/Linux. Or, it’s part of a subject you’re doing and so you’re learning it because you have to. Either way, that’s great. You’re learning how to use a powerful tool that can make your life easier, and make you awesome (more so than I’m sure you already are) .

Complete tutorial will cover the below things:-

• Installation – Installation of different flavor of Linux
• Un installation  –
• The Command Line – What is it, how does it work and how do I get to one.
• Basic Navigation – An introduction to the Linux directory system and how to get around it.
• More About Files – Find out some interesting characteristics of files and directories in a Linux environment.
• Manual Pages – Learn how to make the most of the Linux commands you are learning.
• File Manipulation – How to make, remove, rename, copy and move files and directories.
• Vi Text Editor – Discover a powerful Linux based text editor.
• Wildcards – Also referred to as globing, this is a means to refer to several files in one go.
• Permissions – Learn to identify and change the permissions of files and directories and what the consequences of these are.
• Filters – An introduction to various commands that allow us to mangle data in interesting and useful ways.
• Grep and Regular Expressions – Master a powerful pattern matching language that is useful for analyzing and processing data.
• Piping and Redirection – Join commands together in powerful combinations.
• Process Management – See what is currently running on your Linux system and what state the system is in, learn how to kill programs that have hung and put jobs in the background.
• Scripting – Be happy. Get the computer to do tedious and repetitive tasks for you.
• Cheat Sheet – A quick reference for the main points covered in this tutorial.
• Administration  
• Memory Management
• Networking
• Email System
• File System and File Management
• Utilities

SELinux : Introduction to SELinux

Posted on October 31, 2018 by manisha

SELinux : Introduction to SELinux SELinux, or Security-Enhanced Linux, is a part of the Linux security kernel that acts as
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Installing LAMP on RHEL or Centos 7

Posted on April 30, 2018 by eduguru

Installing LAMP on RHEL or Centos 7  Install httpd services – Web service # yum install httpd Restart httpd resvices
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installation and configuration of fail2ban on CentOS 6

Posted on April 28, 2018 by eduguru

What is Fail2Ban Fail2Ban is an intrusion prevention software framework that protects computer servers from brute-force attacks Fail2ban is a
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generate CSR (Certificate Signing Request) on Linux

Posted on April 21, 2018 by eduguru

CSR stands for Certificate Signing Request. This is generated on the server where the certificate will be used on. A CSR
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Click to Dial or php API to dial from asterisk

Posted on April 15, 2018 by eduguru

copy the below code to a file (click2call.php)  to the webdirectory. executes as  :  http://ipaddress/click2call.php??exten=SIP/100&number=9899338979
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Dialer Support - S Net Expert Technology

Posted on March 30, 2018 by eduguru

We provide Asterisk Support in all over INDIA • Installation / maintenance / configuration • Inbound/outbound/predictive dialing solution for small
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Install LAMP Server (Apache, MySQL, PHP) On RHEL, CentOS

Posted on March 27, 2018 by eduguru

LAMP is a combination of operating system and open-source software stack. The acronym LAMP is derived from first letters of
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UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY

Posted on March 11, 2018 by eduguru

UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY means there is some file system error in the disk. Try this: fsck /dev/sda1 (where /dev/sda1 is
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