Security

We will show you how to change user password in Linux. Changing user passwords in Linux could be one of the most common tasks you will have to perform while you are administering a multi-user [...]

Install iptables Log in to your system via SSH as user root: ssh root@IP_Address -p Port_number Installing iptables is very easy. If you have an Ubuntu system or a Debian system, run the [...]

In this tutorial, we are going to show you how to set up a firewall with iptables on a Linux running Ubuntu or CentOS as an operating system. Iptables is an administration tool for IPv4 packet [...]

Intended audience Before going any further we must point out that this guide is aimed at intermediate users with some knowledge of installing and configuring the LEMP stack. We will assume that [...]

Login via SSH First of all, login to your server via SSH as user root ssh root@IP_Address Note that if SSH is listening on the default port 22, there is no need to specify the port. When the port [...]

First of all update your CentOS virtual server yum -y update Next, install the ‘pam-devel‘ package which allows you to set authentication policies without having to recompile programs that handle [...]

Install fail2ban As always, first login to your VPS via SSH: # ssh user@hostname Installing Fail2ban is very simple just run: user@hostname ~$ sudo apt-get update user@hostname ~$ sudo apt-get [...]

Enable automatic updates Having in mind that the LAMP stack is based on Linux and the whole open-source community works on improvements, it is considered as secure too. On an Ubuntu, all security [...]

Introduction In this article, we will show you how to configure remote and secure connections for MySQL on Ubuntu 16.04.  If you are using an unencrypted connection to connect to your remote [...]

Introduction Having a strong password is the most important thing you can do to protect your account or server and to keep your data secure. Common thinking is that a strong password should be [...]