Hardening HTTP Response Headers on Apache, Nginx and cPanel

HTTP Response headers is the information that HTTP servers shows you back when you request content from HTTP or HTTPS ┬áprotocols. On this post you will learn how to start hardening HTTP response headers HTTP Response headers are used to get technical information about the software running on the server, type of cache configured, security policies used, among many other… Read more »

Linux: Find out who is logged in to the server

Is it possible to find out who is logged in to the server from command line? Yes, it is possible using a few Linux commands. Let’s explore how to detect user names logged into the Linux server. 3 Commands to Find out who is logged in to the server w command w command prints useful information about how many users… Read more »

Nginx: Install Let’s Encrypt SSL on CentOS 6 and CentOS 7

Let’s Encrypt free SSL certificates are one of those things that are changing the internet history. For those who still don’t know what is: Let’s Encrypt offers free SSL certificates for eveybody. And today I will show you how to install Let’s Encrypt SSL on CentOS 6 and CentOS 7 operating systems. Introduction Let’s Encrypt was founded to improve the… Read more »

Redirect main domain to subdirectory using .htaccess

On this post I will show you how to redirect domains to subdirectories. This is specially useful when you migrate data from the main domain to a sub-folder or sub-directory and you don’t want to lose your traffic on the main domain. Let’s see how to redirect main domain to subdirectory using .htaccess file. How can I redirect main domain… Read more »

How to Install Comodo WAF on cPanel

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Web Applications are the #1 target of internet attacks. That’s why using web application firewalls like ModSecurity can help to reduce the risk of attacks.┬áToday we will show you how to Install Comodo WAF on cPanel servers. If you combine a perfect software like ModSecurity with the fantastic rule set from Comodo, then you are increasing your Web Application Security… Read more »

How to install mod_geoip on cPanel

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mod_geoip is an Apache module created by MaxMind. It’s widely used to geo-locate your visitors to know geographical location (country, city, IP lookup, etc). On this post today we will explore an easy way to install mod_geoip on cPanel servers. Follow this step by step instructions on how to get mod_geoip installed on your cPanel/WHM server How can I install… Read more »

Turn Off MySQL Reverse DNS lookup to Speed Up MySQL Performance

Recently my tech team came across a weird problem. It was a MySQL server that was taking forever to serve each query (between 4 to 6 seconds). After taking a deep look, what we found was that the mysql reverse dns lookup was causing the slow that our customer noticed. How can I turn off MySQL reverse dns lookup? By… Read more »