proxy, also known as a proxy is also known as a proxy server software that sits as a mediator between a client and server on the internet. Without the use of a proxy, a user can send a request for a source directly through the server and then the server will deliver an item directly for the requester. This method is simple to comprehend and utilize, however, the addition proxy servers can offer advantages in terms of more performance, privacy, security, among other things. Apart from providing a layer of security it also serves as a guardian for the internet between clients and servers.

It is generally accepted that the combined combination of server hardware and installed proxy software is often referred as proxy servers. This article we’ll focus on proxies traditionally classified as software and within connection with web server. The article will give a detailed breakdown of the two main types of proxies. These are an forward proxy and a reverse proxy. Each type of proxy has its own unique usage situation, and is frequently not understood due to the common naming convention.

This article will give you an understanding of what proxy servers and their subtypes are, and how they can be beneficial in a variety of configurations. Through this guide, you’ll be able to discern the scenarios where a proxy is beneficial, and make the right choice between forward and reverse proxy depending on the situation.

Understanding Forward Proxies

An forward proxy sometimes known by the name of an open proxy is a proxy for an individual trying to connect via the internet to an source server. In this situation, any attempt to send a request by the user will be routed through an forward proxy. The forward proxy, in place of the client is able to examine the request. It will first determine whether the client is authorized to accept requests from this specific forward proxy. It will then either refuse requests or redirect it to the source server. It isn’t able to direct connection directly to internet. It can only access what the forward proxy enables it access to.

The most common reason for using forward proxy is to provide more privacy or security while using the internet. Forward proxy connects to the web as a user and through this way, it assigns an alternative IP address in addition to the IP address of your client.

Depending on how it’s been configured in accordance with the way it was configured, a forward proxy could provide a wide range of options that allow users to:

Forward proxies can also be used in systems to provide central security as well as access permissions, like in a workplace. Internet traffic can be routed via an open forward proxy, administrators can restrict access for specific individuals to access the web, and this is then filtered by the standard firewall. Instead of establishing firewalls on clients, this can be used by multiple computer systems with different types of environments and users. A firewall may be placed at this forward proxy layer.

Take note that forward proxy servers have to be manually setup for the use of them, but reverse proxies will not be noticed by users. Depending on whether an IP address from the client is transmitted to the source server through forward proxy Privacy and anonymity may be granted or hidden.

There are a variety of options to consider in the case of forward proxies.

Understanding Reverse Proxies

Reverse proxy functions as an intermediary to a web server that handles the incoming requests of clients in its place. It can be used as a single server or a number of servers. Furthermore, it could contain an application server like Gunicorn. In any event, it’s possible to get the request of a customer via the internet in general. In the majority of cases the request will be sent directly to the web server hosting the information the client is asking for. A reverse proxy acts as an intermediary that blocks your web server from communication with the internet’s public.

From a consumer’s point of viewpoint, or an individual’s view, interacting using reverse proxy is not different from interacting with the server on its own. It’s functionally the same as an internet server. The user cannot tell the distinction. The client can make a request for the resource and it is then given it, with no additional configuration needed by the user.

Reverse proxies grant features like:

While central security is an advantage of both reverse and forward proxy, reverse proxies do this service to servers on the internet but not to the client layer. Instead of implementing firewalls at the web servers which might include multiple servers that have different configurations, the majority of firewall security is concentrated on the reverse proxy layer. In addition, the absence of interfacing with firewalls and responding to requests from clients that do not use web servers lets them concentrate on providing the needs of their clients.

In the case of multiple servers hosting through a reverse proxy the reverse proxy is responsible for directing the requests towards which servers. Multiple web servers could be offering the same service, but providing different types of resources, or perhaps a mix of both. They may use the HTTP protocol similar to traditional web servers, but they can also be outfitted with applications server protocols such as FastCGI. You can create a reverse proxy to direct clients to an individual server depending on the resource they are looking for, or to observe certain guidelines for traffic load.

Reverse proxy systems can benefit from placing them on the web servers with the caching feature. Large static files can be arranged using caching rules to prevent hitting web servers every time you request. Certain solutions allow users to serve static content directly without connecting to the web server at all. In addition, the reverse proxy is able to manage compression of these assets.

The popular Nginx web server is also used as a well-known reverse proxy solution. While it’s certain that Apache web server does have reverse proxy function, it’s an alternative option. Apache and not the default option. Nginx was initially designed focus on reverse proxy functionality.

Differentiating Forward Proxy from Reverse Proxy Use – Situations

Because “forward” and “reverse” are both associated with an impression of directionality, they can lead to inaccurate comparisons with “incoming” as well as “outgoing” traffic. These labels can confuse because both types of proxies manage the flow of requests as well as responses. An alternative approach to distinguish between forward and reverse proxy is to think about the requirements of the application you’re creating.

Reverse proxy is an essential aspect when developing a solution to deliver web-based applications on the internet. They serve as your web servers during any interaction with the internet.

Forward proxy applications are beneficial when it is placed in front of clients to use for personal purposes, or in a workplace. They are a representation of your client’s traffic when you interact with the internet.

The use case-based distinction instead of focusing only on the most common names can ensure that you don’t get confused.

Conclusion

The article outlined what an “proxy” is with the two most common types of them being the reverse and forward proxies. Practical applications as well as a summary of the beneficial features was utilized to distinguish between forward proxy from reverse proxy. If you’re interested exploring how to use proxies, check out our guide on how to configure Nginx as a webserver and reverse proxy to Apache on Ubuntu 20.04 server.

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