1. A2enmod Centos

Reverse proxy is a kind of proxy server that takes http or https request & transfers/distributes them to one or more backend servers. Reverse proxy is useful in many ways, like– It can hide the origin serve, thus making it more secure & immune to attacks,– It can act as a load balancer,– Reverse proxy can also be used to encrypting/decrypting webserver traffic, thus taking some load off from the backend servers.– It can also be used for caching static as well as dynamic contents, which also reduces load off the web servers.In this tutorial, we are going to discuss how we can use Apache as reverse proxy server on CentOS/RHEL machines. So let’s start with the per-requisites needed for creating apache as reverse proxy,(Recommended read: Easiest guide for creating a LAMP server on CentOS/RHEL). Pre-requisites– We will be using both apache as reverse proxy as well as backend server, though we can also use some other application or webserver like wildfly or nginx as backend servers. But for the purpose of this tutorial, we will be using apache server only.So we need to have Apache server installed on both the servers. This is a simple test page hosted on backend server.Save the file & exit. Now restart the apache service to implement the changes made.

Next test the page from a browser on local or remote system with the following URL,192.168.1.50 is the IP address of the backend server.Configuring simple reverse proxyAfter the backend server is ready, next thing to do is to make our front end i.e. Reverse proxy ready. Mercedes r129 soft top manual. To do so, we need to make the following entry in apache configuration file i.e. Httpd.conf,$ sudo vim /etc/httpd/conf/httpd.confProxyPreserveHost OnProxyPass / / we are telling with ‘ProxyPass’ parameter that whatever request s received at ‘/’, redirect it to ‘Now restart the apache services to implement the changes. $ sudo systemctl restart httpdNote:- We can also add port numbers here, like for example we are using this reverse proxy with tomcat as backend server, we can also this frontend server as reverse proxy for apache tomcat with the following entries in httpd.conf,ProxyPreserveHost OnProxyPass / / the reverse proxyTo test the reverse proxy, open the following URL from a web browser,192.168.1.100 is the IP address of the reverse proxy server. As soon as the URL loads up, we can than see the page that was hosted on backend server.

A2enmod Centos

This shows that our reverse proxy is correctly configured & working.In our future tutorial, we will learn how to configure the apache reverse proxy as loadbalancer. Please do leave any questions/queries you have in the comment box below.