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KVM stands for Kernel Based Virtual Machine. KVM is a Linux kernel module that allows a user space program access to the hardware virtualization features of Intel and AMD processors.

htop is a interactive process viewer in UNIX like operating system.Htop is a free (GPL) ncurses-based process viewer for Linux.It is similar to top, but allows you to scroll vertically and horizontally.

Ubuntu 13.10 is also known as the Saucy Salamander, Ubuntu is most popular open source or free operating system for your desktop and Servers. In this tutorial we will learn how to install ubuntu 13.10 on your personal desktop or laptop.

rbash stands for restricted bash shell. In UNIX like operating when a user is created a default shell (/bin/bash) is assigned. So a user can move to any body's directories , so to avoid this situation we can assign the restricted shell to a user , restricted shell is just like a jail like environment or chroot environment.

In Unix like operating system we have the performance monitoring tools like top,vmstat,iostat,sar,free and lot more.... In this tutorial we will discuss most commonly used linux performance monitoring tools.

In Linux like operating system we can securely mount remote filesystem over ssh protocol using sshfs command. SSHFS stands fro Secure SHell FileSystem. SSHFS enable us to mount remote filesystem and interact with remote directories and files on a local machine.

ttyrec is a tty(terminal) recorder in unix like operating system & recorded data can be played back with the help of ttyplay command.ttyrec is just a derivative of script command for recording timing information with microsecond accuracy.

Puppet is an open source configuration management tool from Puppet Labs.Puppet Resources are the building blocks that puppet uses to model system configurations.

grsync is a graphical rsync tool in ubuntu linux. It provides a graphical user interface to backup or sync important files & directories to remote machine or in local machine using rsync. It currently supports only a limited set of the most important rsync features, but can be used effectively for local directory synchronization.

Rsync is a fast and extraordinarily versatile file copying tool. It can copy locally, to/from another host over any remote shell, or to/from a remote rsync daemon.

Xtreme Download Manager (xdman)is a java based download manager in ubuntu. We can say it is an alternate of windows IDM(internet download manager) in ubuntu linux.

This tutorial will help the system administrators how to securely copy files to remote linux servers from local linux machine & vice versa in UNIX like operating system.

This tutorial will help the system administrators to install CentOS 6.4 linux on Servers. Whereas CentOS (Community Enterprise Operating System) is a Linux distribution which attempts to provide a free enterprise class computing platform.

Some times for troubleshooting point of view support engineers have to take remote desktop of customer's system , in case of ubuntu we have a feature to enable remote desktop sharing.

In most of the environments Linux and windows operating system are used , and to share the files & printers between linux and windows platform Samba is used.

jEdit is a Programmer's Text Editor written in Java.

Setting Password for Single User Mode in Linux , adds security to Linux boxes. If some one access your server physically & reboot server and then tries to change root password from single user mode . In that case if password is set on single user mode , one has to first enter root password , then only can reset root password.

Secure Shell is an xterm-compatible terminal emulator and stand-alone ssh client for Chrome. It uses Native-Client to connect directly to ssh servers without the need for external proxies.

sshpass supplies password to ssh prompt using a dedicated tty , fooling ssh to believe that a interactive user is supplying password.

While working on linux boxes system admin usually get this error “No Space left on device” While df commands shows lot free space on the same partition or device.