How-to Setup PowerDNS on CentOS 6

In this tutorial we will teach you how to setup an alternative DNS server called PowerDNS. It licensed under the GPL and can even be forked on Github. Unlike Bind,... Read more

10 Most Dangerous Commands – You Should Never Execute on Linux

Linux command line is productive, useful and interesting but sometimes it may be very much dangerous specially when you are not sure what you are doing. This article is not... Read more

How to Count Number of Files and Subdirectories inside a Given Directory

The easiest way to count number of files and subdirectories in a directory using a tree command, which is best known for displaying files and directories in tree-like form. Although... Read more

How to Change Linux Partition Label Names on EXT4 / EXT3 / EXT2 and Swap

A Partition is a space carved out from a physical disk which can be used to either install an Operating System or just act as a storage space for Users... Read more

How to Use LUKS for Full Disk Encryption on Linux

How to Use LUKS for Full Disk Encryption on Linux Using LUKS encryption to Create a Secure Disk on Debian 8 Full disk encryption protects the information stored on your... Read more

Backing Up Your Data

Backing Up Your Data If you store any customer or personal data on a Linode, it’s important to make regular backups. Data can become corrupted or inaccessible for any number... Read more

15 Examples of How to Use New Advanced Package Tool (APT) in Ubuntu/Debian

One important thing to master under Linux System/Server Administration is package management using different package management tools. Different Linux distributions install applications in a pre-compiled package that contain binary files,... Read more

Use One-Time Passwords for Two-Factor Authentication with SSH on CentOS 7

Use One-Time Passwords for Two-Factor Authentication with SSH on CentOS 7 In this guide, you’ll learn how to use one-time passwords for two-factor authentication with SSH on CentOS 7. No... Read more

Introduction to FirewallD on CentOS

Introduction to FirewallD on CentOS FirewallD is frontend controller for iptables used to implement persistent network traffic rules. It provides command line and graphical interfaces and is available in the... Read more

Obtain a Commercially Signed TLS Certificate

Obtain a Commercially Signed TLS Certificate If you intend to host a publicly accessible website which will use HTTPS, then you will want to install a commercially signed TLS certificate... Read more