If you want to setup an account on your system that will be used only to transfer files (and not to ssh to the system), you should setup SFTP Chroot Jail as explained in this article. In a typical sftp scenario (when chroot sftp is not setup), if you use sftp, you can see root’s [...]
Ramesh Natarajan
If you’ve purchased a DELL server only with two disks in a RAID-1 configuration, you might want to add more disks later as your space requirement grows. This article explains how to create a new Virtual Disk in both RAID 0 a d RAID 1 configuration using PERC H700 Integrated BIOS Configuration Utility, based on [...]
Dig stands for domain information groper. Using dig command you can query DNS name servers for your DNS lookup related tasks. This article explains 10 examples on how to use dig command. 1. Simple dig Command Usage (Understand dig Output) When you pass a domain name to the dig command, by default it displays the [...]
GIT is an efficient open source distributed version control system. This article explains the following: How to install GIT on Windows How to create a local GIT repository on Windows How to connect to a remote GIT repository (that may be located on a Linux server) and download the files to work locally on your [...]
Most of your waking hours are spent at work. While at work, you spend most of your time working on the projects that are assigned to you by your boss. Complaining about your work and boss will not make you happy even when you think your boss is difficult, doesn’t understand your point of view, [...]
Apache Hadoop Pseudo-distributed mode installation helps you to simulate a multi node installation on a single node. Instead of installing hadoop on different servers, you can simulate it on a single server. Before you continue, make sure you understand the hadoop fundamentals, and have tested the standalone hadoop installation. If you’ve already completed the 1st [...]
When you implement Apache Hadoop in production environment, you’ll need multiple server nodes. If you are just exploring the distributed computing, you might want to play around with Hadoop by installing it on a single node. This article explains how to setup and configure a single node standalone Hadoop environment. Please note that you can [...]
This article explains various command line options that are available for the nagios command. 1. Start Nagios Daemon Using nagios -d Typically you would execute “service nagios start” to start the Nagios daemon, which really calls the /etc/rc.d/init.d/nagios script. You’ll see the following line inside the /etc/rc.d/init.d/nagios script for the Nagios startup: $NagiosBin -d $NagiosCfgFile [...]