The term “proxy” refers to a proxy is also known as a proxy server. It is software which acts as an intermediary for client and server over the internet. Without proxy servers, a user could send a request for resources directly to a server and it would then serve the resource directly back to the user. While this is a simple method to grasp and implement but the addition of proxy servers could bring benefits including improved efficiency, privacy, security, and a host of other benefits. As an additional layer of passing through, the proxy acts as a guardian for the internet, separating clients from servers.

In general, the bundled system of server hardware coupled with the software for proxy installation is often called proxy servers. This article will discuss proxy servers that are typically described as software and specifically in relation to web servers. We will discuss of the two major kinds of proxies. One being forward proxy and the other being a forward proxy and the reverse. reverse proxy. Each kind of proxy has its own purpose, and is frequently confused due to the similar namesake convention.

This article will provide you with an idea of the types of proxies and subtypes and their benefits for setups that are common. If you read this article, you’ll be able to recognize situations where using proxies can be advantageous, and then choose the most appropriate option between forward proxy and reverse proxy, based on the circumstances.

Understanding Forward Proxies

Forward proxy, also referred to as the open proxy acts as the representative of a customer who wants to forward a request via the internet to the server that made it. In this situation, all attempts to make requests through the client’s end will instead be sent directly to forward proxy. The forward proxy, instead of the client will examine the request. It will first find out if the client is authorized to receive requests from this specific forward proxy. It will then deny any request or forward it to the origin server. The client is not able to have an internet connection directly It can only access what forward proxy permits it to access.

The most common reason for using forward proxy servers is the increased privacy or anonymity when surfing the web. Forward proxy connects to the internet as clients, and in this way, it could utilize an IP address that is different from the IP address used by the client.

Based on the way it’s set up, the forward proxy can provide a variety of functions as well as the ability to:

Forward proxies are also employed in systems that offer central security and access to users based on permissions, for instance in workplaces. All internet traffic can pass through a forward proxy, an administrator is capable of allowing only certain clients to access the internet through a single firewall. Instead of putting firewalls installed to protect the client layer which could include multiple machines that have different settings and environments and users, a firewall can be put in an forward proxy layer.

It is important to remember that forward proxy settings must be set up manually to permit the forward proxy to function for use and reverse proxies are able to not be detected by the user. Based on whether or not your IP address a user is sent to the server that originated it via the forward proxy privacy and security may be granted or not.

There are numerous alternatives to take into consideration when considering forward proxy choices:

Understanding Reverse Proxies

Reverse proxy acts as an intermediary to web servers and handles requests from clients for the web server. Web servers can function as a one server or a number of servers. In addition, it could be an application server such as Gunicorn. In any case the request for an application comes through the internet at large. The request will typically go directly to the web server that hosts what the client is searching for. The reverse proxy serves as a middleman to protect your website server from communication with the internet’s open.

From a consumer’s point of view, interacting with reverse proxy isn’t different from communicating with Web server in direct contact. It’s functionally identical, but the user isn’t able to tell the difference. Client makes a request for an item, and receives it, with no additional configuration needed for the end user.

Reverse proxy providers provide features like:

While central security can be a benefit of both reverse and forward proxy, reverse proxies do this only for only the server layer and not to the client layer. instead of maintaining firewalls for Web server layers that may comprise multiple servers that have different configurations, the majority of firewall security is directed towards the reverse proxy layer. In addition, taking the burden of interacting with firewalls and interfacing with requests from clients off of web servers allows them to focus on serving resources.

If there are multiple servers that have a reverse proxy, the reverse proxy will be also accountable for deciding which requests go at the server. There may be several web servers running from the same host, each serving different kinds of resources or a combination of the two. These servers could use the HTTP protocol, which is similar to a traditional web server. They could also incorporate application server protocols like FastCGI. You can also configure reverse proxy servers to direct clients to specific servers based on the service they require or to follow certain guidelines regarding traffic load.

Reverse proxies also can take advantage of their placement over web servers by making use of caching. The large static files can be set up with caching rules to avoid the web server from being hit with each request, with some solutions even allowing users to upload static files without having to connect with the server. Furthermore, the reverse proxy is able to handle the compression of these assets.

The popular Nginx web server has become an extremely popular reverse proxy option. However, it is a reverse proxy solution, the Apache web server comes with a reverse proxy option as an additional feature that is available to Apache however Nginx was originally designed to and is focused on reverse proxy functions.

Differentiating Forward Proxy from reverse Proxy Use Cases

Since “forward” in addition to “reverse” are both associated with a sense of directionality as well as inaccurate comparisons to “incoming” in addition to “outgoing” traffic. These labels can be confusing, as both types of proxies are able to manage requests and responses. An alternative method to differentiate between forward and reverse proxy servers would be to analyze the requirements of the application that you’re developing.

Reverse proxy can be a valuable tool when you are creating a solution for serving web applications on the internet. They represent your web servers in any interaction with the Internet.

A forward proxy is useful to have working with clients in front for personal use or in a work environment. They are a representation of your traffic whenever you connect to the internet.

A distinction based on usage case instead of using the standard naming conventions can assist you in getting rid of confusion.


The article explained what a proxy is along with two types being the reverse proxy and forward proxy. Practical examples of its use and a discussion of the most useful features were used to distinguish forward proxies from reverse. If you’re looking to learn how to implement proxies we recommend you read our tutorial on how to set up Nginx as an reverse proxy and internet server on Apache running an Ubuntu 20.04 server.

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