• 목록
• 답변
• 게시판 리스트 옵션
  • 수정
  • 삭제

The word "proxy" refers to a proxy or proxy server, a software which serves to act as an intermediary for a client and server on the internet. Without the use of proxy servers, users could send a request for resources straight to servers, then the server could then provide the resource directly back for the client. While this approach is straightforward to understand and use, using proxies has benefits like improved performance as well as privacy, security and much more. As an additional pass-through layer the proxy functions as a security guardian of the internet between clients and servers.

Generally speaking, the combined combination of hardware and software for servers with installed proxy software is often referred to as a proxy server. This article will focus on proxies typically considered to be software, specifically, in relation with web server. The article will offer details of the two major kinds of proxies, which are forward proxy and reverse proxy. reverse proxy. Each type has a different use case, often confused due to the similar terms.

This article will provide the understanding of what proxies are and the subtypes they are, as well as how they work with a range of configurations. In this guide, you'll be able to determine the circumstances in which a proxy is beneficial, and choose the correct solution between forward and reverse proxy in any circumstance.

Understanding Forward Proxies

The forward proxy often referred to an open proxy acts as an intermediary for a client trying to send a request over the internet to connect to a source server. In this scenario, the entire attempt to send requests made by the user will instead be transmitted through the forward proxy. This forward proxy acting on behalf as the customer, is able to take a look at the request. In the beginning, it will determine if the client is able to handle requests via this particular forward proxy. It will then deny requests or redirect it to the original server. The client isn't capable of having an internet connection directly. It is only able to access what forward proxy allows it to access.

One of the most frequent uses for forward proxy services is to obtain more privacy or security when using the internet. Forward proxy connects to the internet as a client and it may use an alternative IP address in addition to the client's initial IP address.

Based on the way it has been configured in accordance with the way it was configured forward proxy can offer a wide range of options and let you:

• 
  
• 
  Avoid tracking ads.
  
  
• 
  Circumvent surveillance.
  
  
• 
  Find restrictions based on the geolocation of your home.
  
  

Forward proxies are also employed in systems of centralized security and permission-based access like at a workplace. When all internet traffic passes through a forward proxy open layer administrators can allow access to only a few individuals to access the web, which is blocked by a common firewall. Instead of creating firewalls on the layer of clients which could be used by multiple computers that have different configurations, environment, the firewall could be installed at the layer that forwards proxy traffic.

It is essential to note that forward proxy servers must be configured manually and reverse proxies may not be noticed by the user. Depending on the type IP address of a client is transmitted to the server where it came from via the forward proxy Privacy and anonymity may be granted or not.

There are a number of options to consider for forward proxy possibilities:

• 
  
• 
  Apache A popular open-source, well-known web server that provides forward proxy capabilities.
  
  
• 
  Nginx: Another well-known open-source server for web hosting with forward proxy features.
  
  
• 
  Squid is an open source forward proxy that uses the HTTP protocol. It's not the entire Web Server System. It is possible to refer to our step-by-step instructions to set up Squid proxy to allow private connections on Ubuntu 20.04.
  
  
• 
  Dante Forward Proxy which uses the SOCKS protocol instead of HTTP which allows it to be more suitable for use situations like peer-topeer traffic. You might also want to look into how to setup the Dante proxy for private connections in Ubuntu 20.04
  
  

Understanding Reverse Proxies

A reverse proxy functions as an intermediary for a web server that handles any requests that come in from customers on behalf of the server. This web server can serve as a single server or multiple servers. Furthermore, it could be used as an application server such as Gunicorn. In any case the request will be made from the Internet at large. In most cases, the request will go directly to the server and include the information the user wants. However, reverse proxy functions as an intermediary, securing the web server from direct contact with the internet's open.

From a consumer's point of view the experience of interacting with reverse proxy isn't a lot different than working with the server by itself. It's the same, but the client can't tell the distinction. The client can make a request for the resource and it receive it, with no additional configuration needed on the part of the client.

Reverse proxy providers can provide options like:

• 
  
• 
  Centralized security for the web server layer.
  
  
• 
  The direction of traffic coming in is by rules you have set.
  
  
• 
  The caching feature was added to the application.
  
  

While centralized security is a benefit of both forward and reverse proxy servers, reverse proxies offer this service to the web server layer but not the client layer. Instead of maintaining firewalls at Web server layers which may comprise multiple servers with different configurations, the bulk of the firewall security is concentrated at the reverse proxy layer. In addition eliminating the hassle of dealing with firewalls as well as interacting with requests from customers outside of web servers permits them to focus on delivering the needs of their customers.

If there are multiple servers running through a reverse proxy the reverse proxy takes care of directing which requests go to which server. There may be many web servers that provide the same service, each offering different kinds of resources, or a mix of both. These servers could be running the HTTP protocol as a conventional web server. However, they could also be using application server protocols like FastCGI. It is possible to configure reverse proxy servers to redirect users to a particular server based on the service requested, or to follow specific guidelines for traffic load.

Reverse proxies are also able to benefit from their positioning before web servers, by giving them the ability to cache data. Massive static resources can be managed with caching rules to ensure that they do not prevent websites from being hit on every request. Some solutions allowing you to provide static files directly and without having to connect with the server. In addition, the reverse proxy could manage the compression of these assets.

The popular Nginx web server can also be an efficient reverse proxy solution. While you can use it, Apache web server with a reverse proxy but it's an additional option for Apache and Nginx was originally designed for and is specifically focused on reverse proxy capabilities.

Differentiating Forward and Reverse Proxy Use Cases

Since "forward" or "reverse" are associated with directionality, as well as false comparisons to "incoming" and "outgoing" traffic, these labels could be confusing because both kinds of proxies are able to handle requests and responses. Another method of separating between forward and reverse proxy is to study the requirements of the app you're developing.

Reverse proxy could be helpful when creating a solution to serve web applications on the internet. They act as your web server for all interactions over the internet.

Forward proxy is useful when placed in front of customers for your own use or within a corporate environment. It is a way to protect the information of your client whenever you interact on the internet.

Differentiating by case of use instead of focusing on common naming conventions can assist you in avoidance of confusion.

Conclusion

The article explained the meaning of a proxy with two types: the forward proxy and the reverse proxy. Practical use cases along with an examination of the most useful characteristics were used to determine the two kinds of proxy: forward and reverse. If you're looking to know more about the possibilities of proxies, then we recommend you read our tutorial on how to install Nginx for use as a web server and reverse proxy in Apache running on the Ubuntu 20.04 server.

When you loved this short article and you wish to receive more details regarding Proxy Sites i implore you to visit our web page.