idroot

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How To Install and Enable EPEL Repo on CentOS 5, CentOS 6 and CentOS 7

For those of you who didn’t know, EPEL(Extra Packages for Enterprise Linux) is a repo developed by Fedora project to ensure that there is a quality 3rd party packages available for enterprise user...

How To Install Nginx With GeoIP Module

In this tutorial we will show you how to install and configuration of Nginx With GeoIP Module on your Linux server. For those of you who didn’t know, Nginx GeoIP module for country and city geo ta...

apt-get update GPG error BADSIG

How to fix apt-get update GPG error BADSIG on Ubuntu or Debian

Today I encountered another apt-get update GPG error, this time I got error message BADSIG : [crayon-5b4d6c80f27e9085380459/] After a few research I found the solution from askubuntu and stackexch...

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How To Install and Configure HAproxy on CentOS 6

In this tutorial we will show you how to install and configuration of HAProxy on your CentOS 6 server. For those of you who didn’t know, HAProxy is a free and open-source Linux application used fo...

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How To Install ClamAV on CentOS 6

In this tutorial we will show you how to install and configuration of ClamAV on your CentOS 6 server. For those of you who didn’t know, ClamAV is an open source (GPL) antivirus engine designed for...

PPTP-VPN

How To Install PPTP VPN on CentOS 6

In this tutorial we will show you how to install and configuration of PPTP VPN on your CentOS 6 server. For those of you who didn’t know, The Point-to-Point Tunneling Protocol (PPTP) is a method f...

htop-process-monitoring-tool

How To Install Htop on CentOS 6

For those of you who didn’t know, Htop is an interactive and real-time system-monitor process-viewer written for Linux. It is designed to replace the Unix program top. It shows a frequently ...

How To Fix 502 Bad Gateway Error on Nginx

In this tutorial we will show you how to fix 502 bad gateway error on Nginx web server. If you run a Nginx web server you may have already encountered the annoying 502 bad gateway errors. This is pr...

vesta-cp

How To Install VestaCP on CentOS 6

For those of you who didn’t know, VestaCP is an open source hosting control panel currently supports both RHEL flavoured Linux releases (Red Hat, CentOS) and Ubuntu. It comes with all necessary so...

How To Protect Directory With Password on Nginx

Unlike Apache, Nginx does not have any .htaccess file. Password protection is achieved by using the Nginx HttpAuthBasic module directives in the configuration file. For future reference, I will show...