Details Of Proxy Sites

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It’s a proxy or proxy server, is a server software program that acts as an intermediary between server and a client via the internet. In the absence of an intermediary a customer can submit a request for or resource to the server directly, and the server will serve the requested resource directly to the user. Although this is a simple process to understand and implement using proxy servers, it could provide advantages such as more performance, privacy, security, and more. As a pass-through layer, the proxy acts as a security guardian of the internet between the servers and clients.

In general, the combination of server hardware and the software to install proxy servers is usually referred to in the context of proxy servers. In this post, we’ll focus on proxies typically understood as software, as well as the ones used to complement web servers. You will get a breakdown of two types of proxies, a forward proxy and a reverse proxy. reverse proxy. Each kind of proxy has its own specific use case, and is often misunderstood because of the naming conventions that are similar.

This article will provide you with some understanding about what proxies and their subtypes are, as well as how they can be used in most common configurations. Through this article, users will be able to identify the scenarios in which an effective proxy can be beneficial, and choose the best option between reverse and forward proxy options for each situation.

Understanding Forward Proxies

In other words a forward proxy is also known as open proxy open proxy is the representative of a client which is attempting to send requests via the internet to a server that originated. In this case, all attempt to send requests by the client will be sent by the forward-proxy. In this scenario, an agent acting on behalf of the forward proxy in in the place of the customer will examine the request. It is the first thing to determine which client has the authority to send requests through this specific forward proxy. The forward proxy will then deny this request as well as send it back to the server originally. The client isn’t able to establish a direct connection to the internet; it will only be able to connect to what forward proxy grants it access to.

A very common uses for forward proxies is the increased privacy or anonymity on the internet. Forward proxy can be used to connect to the internet in instead of a client and in that process it can use an alternative IP address to the IP address that was originally assigned to the client.

Depending on how they were set up in the past forward proxy servers are able to provide a variety of functions and allow you to:

  • Beware of ad-tracker.

  • Circumvent surveillance.

  • You can identify limitations based on your geographic location.

Forward proxies can also be used to secure systems that are centralized and have permission-based access like at work. If all internet traffic flows through a common forward proxy layer, an administrator is able to grant access only to specific individuals to access the web, which is filtered by an common firewall. Instead of keeping firewalls in place for the client layer that could be comprised of a variety of computers with different environments and users the firewall could be placed in the forward proxy layer.

Be aware that forward proxy servers must be manually set up for use, however reverse proxies will be ignored to the user. Based on whether or not an IP address from a client is passed to the original server through the forward proxy, privacy and anonymity could be granted or not noticed.

There are many options to look into for forward proxies:

  • Apache is a well-known open-source web server that provides forward proxy capabilities.

  • Nginx: Another widely used open-source server used for web hosting with forward proxy capabilities.

  • Squid is an open-source forward proxy that makes use of the HTTP protocol. It doesn’t provide the entire web server. We have a tutorial on how you can configure Squid proxy to allow private connections in Ubuntu 20.04.

  • Dante Forward Proxy that utilizes the SOCKS protocol instead of HTTP which makes it better suited to cases like peer-to-peer connections. It is also possible to explore how you can set up Dante proxy for private connections using Ubuntu 20.04

Understanding Reverse Proxies

Reverse proxy is an agent on behalf of a web server that handles incoming requests by clients on its behalf. The web server could consist of a single server or a number of servers. It could also serve in the role of an application server, such as Gunicorn. In any of these situations, the request may come from a user on the internet. Most of the time it will be routed straight to the web server that hosts the information the user is in need of. Reverse proxy is an intermediary, separating Web servers and direct interaction with the internet.

From a client’s viewpoint, which is the user’s perspective using reverse proxy isn’t different from connecting directly to your website server. It’s the same thing but clients can’t be able to tell the distinction. The customer makes a request for an item and is given it without any additional configuration that needs to be done by the customer.

Reverse proxy proxies may offer some features, including:

  • A central layer of security to protect the server.

  • Controlling traffic coming inbound according to rules that you set up.

  • A new feature to cache is now available.

While central security is a benefit of both reverse and forward proxy service, reverse proxies provide this benefit to the layer of the internet server, and not to that layer of the internet server, which is called client. instead of maintaining firewalls in the layer of web servers, which might contain several servers with different configurations, the majority of firewall security could be directed at the reverse proxy layer. Furthermore, removing the obligation of interfacing with a firewall as well as interacting with client requests off of web servers enables them to focus solely on serving the requirements of their clients.

If multiple servers are using a reverse proxy the reverse proxy determines how requests are routed on which server. There are many web servers offering the same content, however, they each serve different kinds of resources, or some combination of both. These servers could use the HTTP protocol like a traditional web server, however they may also include protocols for applications such as FastCGI. You may also set up a reverse proxy to redirect clients to specific servers based on the resource requested or to adhere to certain guidelines for traffic load.

Reverse proxies may also make use of their position on top of web servers by supplying the ability to cache data. Large static files may be managed using caching rules to prevent the server from getting hit with every request and some solutions even offer the possibility of providing static files directly without touching the server in any way. Furthermore the reverse proxy can manage the compression of these assets.

The well-known Nginx web server is an extremely popular reverse proxy service. However, the Apache website server also equipped with a reverse proxy feature as an added choice for Apache and is in contrast to Nginx was initially designed for and focused on reverse proxy functionality.

Differentiating Forward Proxy and reverse Proxy Use Situations

Because “forward” in addition to “reverse” are ascribed to a sense of directionality, and false comparisons with “incoming” and “outgoing” traffic. These labels can confuse because both types of proxies manage requests and responses. A better approach to differentiate between forward and reverse proxy services is to consider the needs of the application that you are developing.

A reverse proxy can be helpful in designing solutions that serve web-based applications via the internet. They are your web servers throughout all interactions on the internet.

A forward proxy can be helpful when used before traffic from clients for personal use or for work. They represent your client traffic whenever you interact on the internet.

The use case distinction as opposed to focusing only on similar naming conventions will assist in avoidance of confusion.


This article describes what a proxy is, with the two primary types, namely the forward proxy and reverse proxy. Application scenarios that are practical as well as an examination of important characteristics were used to determine forward proxies and reverse proxy. If you’re interested to learn more about the process of implementing proxy servers, check out our tutorial on how you can install Nginx as a web server and reverse proxy on Apache using an Ubuntu 20.04 server.

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