Linux Tutorials for Beginners

How to Install Lighttpd With PHP5 (PHP-FPM) and MySQL on CentOS 6.5

Lighttpd (pronounced “lighty”) is an open-source web server as an alternative to Apache and Nginx. It is a secure, flexible, fast and designed for speed-critical environments. It has a low…

How to Upgrade Zimbra Collaboration Suite 8.0.6 to 8.0.7 on CentOS 6.5 x86_64

Zimbra Collaboration Suite (ZCS) is one of the popular open source email solution. Zimbra has released new version of ZCS 8.0.7. This new version consist of many new features and…

How to Install Nginx With PHP5 (and PHP-FPM) and MySQL (LEMP) On Ubuntu 14.04

NGINX, pronounced “Engine X” is an alternate web server for Apache. NGINX is an open source web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols….

How to Install ClamAV on Ubuntu Server 14.04

Linux system is design to makes it hard for viruses to run and that why it is more secure than windows operating system. However we still need to install Clam…

How to Hide Apache Information on Ubuntu VPS/Dedicated Web server

Hiding Apache information on an Ubuntu VPS or dedicated server is a security best practice to prevent potential attackers from gathering information about your server setup. Revealing Apache version and…

How to Install and Configure Apache2, PHP and MySQL 5.6 on Ubuntu 14.04

LAMP stack is a group of open source software that installed together to let you run a server to host dynamic websites. “L” stand for Linux, “A” stand for Apache…

How to Print Unique Lines from a File in Linux?

In Linux, it’s often necessary to extract unique lines from a file. This task, while seemingly straightforward, can be a bit complex for beginners or those unfamiliar with Linux commands….

How to Disable and Remove AppArmor on Ubuntu 14.04

AppArmor, an acronym for Application Armor, is a Linux kernel security module that provides a Mandatory Access Control (MAC) system. It is a powerful tool that helps mitigate the risk…

How to Allow root to use SSH on Ubuntu 14.04

By default, Ubuntu 14.04 does not permit the root user to log in through SSH for security reasons. However, there might be situations where you need to enable SSH access…

How to Setup Open Source Puppet Server and Puppet Agent on Centos 6.5

Puppet is an open source IT automation software and configuration management tool for systems administrators that helping them to manage and operate infrastructure of Unix-like and Microsoft Windows systems. It…

How to Install Webmin on Ubuntu 14.04

Ubuntu 14.04 LTS final just released on 17th April 2014. Ubuntu 14.04 includes 3.13.0-24.46 Ubuntu Linux kernel. In this article i will show how you can install Webmin on Ubuntu…

How to Fix _default_ VirtualHost overlap on port 80, the first has precedence

Question : I running wordpress blog on apache web server on Virtual private server (VPS). I had the problem when i restarted the httpd service on my VPS. This error…