​Incase if you want to restructure website url, we have to redirect the URL from sub folder or sub directory to ROOT folder, for example here I will use "public_html"

HTTP2 protocol is replacement of HTTP1.1 protocol, Its based on SPDY, HTTP2 is more efficient, more secure and faster data transfer in applications.

You may get a below error while installing NGINX, the HTTP rewrite module requires the PCRE library.

Once you have done the Nagios client installation and configuration in your system then, you may getting an error HTTP-WARNING : 403 Forbidden like below image,