Key Pieces Of Proxy Sites

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It is an proxy or proxy server. is a server software program that serves as an intermediary between a clients and servers on the internet. With no intermediaries, a customer could make a request for every resource straight to the server and the server would serve any requested resources directly to customer. While this process is simple to understand and apply using proxy servers, it does offer benefits in terms of higher performance, privacy, security, and more. As a layer of pass-through, the proxy serves as a intermediary between clients and servers.

In general, the mix of the server hardware and software for proxy installation is often referred as proxy servers. In this post, we’ll concentrate on proxies that are typically thought of as software, as well as ones that work in conjunction with web servers. We will provide a description of the two main kinds of proxies: a forward proxy and a reverse proxy. reverse proxy. Each kind of proxy has its own specific usage scenario, which is often misunderstood because of the similar naming convention.

This article will provide you with some understanding about what proxy servers and subtypes of them are, and how they can be used in common setups. In this article, you will be able to identify the scenarios where an effective proxy can be useful, and select the correct solution in between forward and reverse proxy options for each scenario.

Understanding Forward Proxies

In other words a forward proxy also known as the open proxy is the representative of a client which is attempting to send requests via the internet to an origin server. In this case, all attempt to send requests from the client will instead be handled by the forward proxy. In this case an agent acting on behalf of the forward proxy in the place of the client will look over the request. The first step is to establish which client has the authority to send requests through this specific forward proxy. It will then reject this request and transfer it over to the original server. The client isn’t able to connect directly to the internet. It can only reach what the forward proxy allows the client access.

One of the most frequent reasons for forward proxy is the increased privacy or anonymity online. A forward proxy is able to access the internet in instead of a client and, in doing so, can use an alternative IP address in place of the IP address that was originally assigned to the client.

Based on the way it was established in the past, forward proxy servers can perform a variety of tasks and let you:

  • Avoid ad tracking.

  • Circumvent surveillance.

  • You can identify limitations based on your geographic location.

Forward proxies can also be used for security systems that are centralized and permission based access like in a workplace. When all internet traffic passes through an open forward proxy layer, an administrator is able to grant access only to specific people to connect on the internet. This is blocked by a standard firewall. Instead of putting firewalls in place to protect the client layer which could comprise a range of devices that are different in user and environment, a firewall can be placed in the forward proxy layer.

Be aware that forward proxies must be manually set up to function, however reverse proxies will be ignored to the user. Based on whether the IP address of a customer is passed to the original server via the forward proxy, privacy and anonymity may be granted or ignored.

There are many options to investigate for forward proxy options:

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

  • Nginx: Another popular 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. This does not include the entire web server. We’ve got a guide on how to configure Squid proxy for private connection in Ubuntu 20.04.

  • Dante Forward Proxy that utilizes the SOCKS protocol instead of HTTP, making it more appropriate for scenarios like peer-to-peer connections. It is also possible to examine how you can set up Dante proxy to connect privately on Ubuntu 20.04

Understanding Reverse Proxies

Reverse proxy functions as an agent for a web server, handling incoming requests by clients on behalf of. This web server may comprise a single server, or even multiple servers. It can also function as an application server, such as Gunicorn. In any of these scenarios, the request may come from a client via the internet at large. Most of the time, this request will go direct to the website hosting the information the user requires. Reverse proxy is an intermediary that separates Web servers from direct interaction with the internet.

From a client’s viewpoint, which is from a user’s point of view, interfacing with reverse proxy isn’t that different from connecting directly to your website server. It’s the same thing, however the client isn’t able to be able to tell the difference. The customer requests an item and receives it without any additional configuration needed to be performed by the client.

Reverse proxy proxies can provide options, such as:

  • A centralized layer of security that protects the server.

  • Controlling traffic inbound based on rules that you create.

  • A new feature for caching has been added.

While central security is a benefit of both forward and reverse proxy services, reverse proxies give this feature to the level of an internet server not that layer of the internet server, which is called client. instead of the maintenance of firewalls on the layer of web servers that may contain multiple servers that have different configurations, a majority of firewall security can be focused on this layer. Furthermore, removing the obligation of interfacing with firewalls and also interacting with clients’ requests through web servers enables them to concentrate on the needs of their customers.

If there are several servers using reverse proxy the reverse proxy determines how requests are routed on which server. A number of web servers could be providing the same content however, they each serve different kinds of content or a mix of them. These servers could use the HTTP protocol like a traditional web server, however, they might also use applications server protocols such as FastCGI. It is also possible to set up reverse proxy servers to redirect the clients towards specific servers in accordance with the service requested or to adhere to certain rules for traffic load.

Reverse proxies can also benefit from their positioning on top of web servers by providing caching functionality. Large static files can be configured with caching rules to stop the server from getting hit every time a request is made, with certain solutions providing the possibility of providing static files without contacting the web server in any way. Furthermore reverse proxy may be able to handle compressing these files.

The well-known Nginx web server has become a wildly popular reverse proxy option. While Apache is also a reverse proxy solution, the Apache web server is equipped with a reverse proxy functionality and is an alternative option for Apache as opposed to Nginx was designed initially for and was designed specifically for reverse proxy functions.

Distinguishing Forward Proxy from reverse Proxy Use Cases

Since “forward” in addition to “reverse” are ascribed to a sense of directionality, and false comparisons between “incoming” as well as “outgoing” traffic. These labels can be confusing since both types of proxies handle requests and responses. A better approach to distinguish between forward and reverse proxy services is to consider the requirements of the application you’re developing.

A reverse proxy is useful in the design of solutions that serve web-based applications via the internet. They act as your servers in all interactions on the web.

A forward proxy is helpful when used on the internet in front of traffic from clients to your personal use, or for work. They represent the traffic of your clients every time you connect to the internet.

Differentiating by use case instead of focusing on the similar naming conventions will assist you in avoiding confusion.


This article will explain the definition of a proxy, with the two main types being the reverse and forward proxy. Practical application scenarios as well as an examination of important characteristics were used to establish forward proxies as well as reverse proxies. If you’re interested to learn more about how to implement proxy services, you can refer to our tutorial on how you can set up Nginx as an internet server and reverse proxy using Apache on the Ubuntu 20.04 server.

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