
Jeff Wilson
Securing your Ubuntu/Debian based VPS using IPTABLES/Netfilter firewall

What is iptables?
It is is a user space application program that allows a system administrator to configure the tables provided by the Linux kernel firewall (implemented as different Netfilter modules) and the chains and rules it stores.
In order to keep down the number of attempted break-ins and to filter the ports opened on your virtual server, it is necessary to properly configure your firewall.
Useful Exim Commands

If you want to install Exim on a CentOS VPS, all you have to do is install the EPEL repository:
rpm -Uvh http://fedora-epel.mirror.lstn.net/6/x86_64/epel-release-6-8.noarch.rpm
then, install Exim via yum:
yum install exim
Install Pagekit CMS on an Ubuntu VPS

This should work on other Linux VPS systems as well but was tested and written for Ubuntu 14.04.
How to install eGroupware on an Ubuntu 14.04 VPS

What is eGroupware?
It is free and open source groupware software intended for businesses from small to enterprises. Its primary functions allow users to manage contacts, appointments, projects and to-do lists.
Requirements?
eGroupware runs on an Ubuntu base system, requires a webserver, a database server, a mail server etc.
Install Moodle on a Linux VPS

In this guide, we’ll show you how to install Moodle on a Linux VPS.
How to install LEMP (Linux, Nginx, MariaDB & PHP-FPM) on a CentOS 7 VPS

If instead, you are looking for how to set-up LAMP, then please refer to our guide on how to install LAMP (Linux Apache, MariaDB & PHP) on a CentOS 7 VPS
What is LEMP?
A LEMP stack is a synonym of LEMP server or LEMP web server. It refers to a set-up which includes Linux, Nginx, MariaDB (MySQL) and PHP.
How to install OwnCloud 7 on an Ubuntu 14.04 VPS

In this blog article we will install OwnCloud 7 on an Ubuntu 14.04 VPS. The installation is pretty easy and fast.