RedHat OS uses swap as a type of “Virtual Memory “in case your physical memory begins to run low. This capacity can be helpful for the system that don’t have enough physical memory ( RAM ). You can define swap on your existing file system wherever you got free space instead of arranging a separate…
In this guide we will learn how to Mount Windows Shares on Linux using autofs. CentOS 6.3 machine and a windows 7 machine will be used to perform this task. A share folder is available on windows 7 machine named win-share. We will mount this share folder using autofs on CentOS. Let’s get started. Windows…
LUKS or a Linux Unified Key Setups is a partition encrypted system. encrypted file system are extremely useful and ensure that your data is stored on partition and on your removable drives is safe when its lost or stolen. Setting up encrypted filesystem on RHEL6 system is a part of RHCSA exam and you may…
Don’t be worried we have solution to get into the system “Yes†you can still login with root user if you forget your root user password. See below You need to perform the following steps to reset the root user password Reboot your Linux Machine and boot into single-user mode by appending the word “single 
MySQL is most popular Open Source Data Base Server. MySql is RDBMS ( Relational Database Management System. it provides multi user access to the number of databases. Step-1 : Installation of MySql Server using yum. [root@dbase1 /]# yum install mysql mysql-server php-mysql Step-2 : Start mysql service. [root@dbase1 /]# service mysqld start
In this tutorial i am going to install heartbeat package on centos 6.2. heartbeat basically part of Linux High Availability system it will ensure the availability of nodes that are
SSH & VNC Remote Access Remote Access lets you to connect other computer that are located over the network. Makes your life easier to manage nodes remotely you don’t need to be there physically you can connect your node through remote access, for command-line remote access Linux provide us SSH (Secure SHell) if you are…
RHEL 6 and CentOs 6.2 has no more yum repository for DRBD. if you want to Install DRBD on RHEL 6 you need a support contract with RedHat. We will use ELRepo repository to install DRBD on CentOs 6.2. Step-1 : download elrep using wget [root@dbase1 ~]# mkdir /download [root@dbase1 ~]# cd /download/ [root@dbase1 ~]#…
INTRODUCTION What is grep ? ‘grep’ is a line searcher specially its very helpful when you are dealing with large text files or even multiple files. Name ‘grep’ drives from unix/linux text editor eg: (global / regular expression / print) g/re/p.
Backup Files and Directories in Linux This tutorial is related to Backup Files and Directories in Linux using tar and cron jobs. Almost every Linux Admin use this utility (for backing up their critical data) which is something call tar, tar allows you easily and quickly backup your files folder or your entire system.
what is Input/Output Redirection in Linux ? Input/output redirection means the text that is showing on your screen while you are running any command(program)in your shell, that information can be redirect elsewhere and even you can store this output in a file or can be print directly. This function called Redirection, you can also redirect…
How to Configure Linux Load Balancers and Highly Available MySQL Database Structure on centos 6.2. Introduction: This step by step guide shows you how to configure Load Balancers in Linux environment and how we can make mysql database structure highly available with the help of DRBD & Heartbeat. Note: 1: Our main focus to make…
