• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

It is a proxy commonly referred to as a proxy server is software that sits as an intermediary between client and server on the internet. Without proxy servers, users will send a request for resource directly to a server and it would then serve direct to users. It isn't difficult to comprehend and apply the addition of proxies can bring advantages such as improved performance and privacy, security and so on. As an additional layer of security, proxies act as a gatekeeper on the internet, separating clients and servers.




It is generally accepted that the collection of hardware used by servers and the software to install proxy servers is commonly referred to as proxy servers. This article will concentrate on proxies commonly referred to as software and in connection with web server. The article will provide a description of the two main types of proxies that are forward and reverse. forward proxy and reverse proxy. reverse proxy. Each has its own use situation, and is frequently confused because of the similar the name convention.




This article will give you an overview of types of proxies, their subtypes, and how they work in typical setups. Through this guide, you'll learn how to identify the circumstances where using proxy servers is beneficial, and select the best option between reverse and forward proxy, in each circumstance.



Understanding Forward Proxies



In other words a forward proxy, also called an open proxy is a representative of a client who would like to make requests via online to the originating server. In this situation, all requests sent by the client are instead transferred to the forward proxy. In this case, the forward proxy in place of the client will examine the request. First, it must check if the client is authorized to receive requests from this particular forward proxy. It will then either deny an request and forward it to the original server. The client is not able to have an internet connection directly It can only connect to what the forward proxy allows the client to access.




The most popular reason to utilize forward proxy servers is to increase privacy or security online. Forward proxy makes use of the internet in place of a client and could use an alternative IP address from that of the initial IP address of the client.




Based on the way it's setup, and how it is configured forward proxy can provide a range of features and also the ability to:




Beware of ad-tracker.


Circumvent surveillance.


Find limitations based on the geographic location.




Forward proxies are also employed in systems that offer central security and access based on permissions such as at work. If all internet traffic is routed through an open forward proxy layer, an administrator could grant access only to a few users who are filtered through an ordinary firewall. Instead of putting firewalls in place for the client layer, which could include several devices that have various settings, users and settings A firewall could be added to this forward proxy layer.




Be aware that forward proxy servers have to be manually set up for use in order to be utilized, whereas reverse proxy servers are able to be ignored by clients. Based on whether or not the IP address of the client is transferred to the origin server through the forward proxy, privacy and anonymity can be granted or made clear.




There are a myriad of options to look into options for forward proxy options




Apache is a well-known open-source web server, which offers forward proxy functions.


Nginx: Another renowned open-source webserver that includes forward proxy capability.


Squid: A free forward proxy using the HTTP protocol. Squid doesn't include the full web server. We recommend you read our guide on the best way to create Squid proxy to permit private connections on Ubuntu 20.04.


Dante Forward proxy that makes use of the SOCKS protocol instead of HTTP which makes it more suitable for situations such as peer-to-peer communication. You might also want to learn how to setup a Dante proxy for private connections on Ubuntu 20.04



Understanding Reverse Proxies



A reverse proxy functions in the role of an intermediary for a web server, handling the incoming requests of customers on its behalf. The web server may comprise a single server, or multiple servers. Additionally, it can be used as an application server such as Gunicorn. In any case, a request could be made by a client via the web in general. Normally, this request will be directly to the server with the resources the client requires. Instead, a reverse proxy acts as an intermediary in order to protect your server from interaction with the open internet.




From a client's perspective the experience of interacting with reverse proxy is the same as communicating directly with your webserver. It's functionally identical, and the user can't tell the difference. Client requests a resource and is then able to receive it with no additional configuration needed by the client.




Reverse proxy providers offer options like:




Centralized security on webservers.


Directing traffic in accordance with rules you set up.


New feature added to caching.




While central security is a benefit of both forward and reverse proxy systems, reverse proxy provides this service only to the server layer and not to the client layer. Instead of focusing on maintaining firewalls at Web server layers, which could contain multiple servers that have different configurations, the majority of firewall security may be centered on the reverse proxy layer. In addition, removing the responsibility of interacting with firewalls and interacting with client requests far from web servers permits the firewall to concentrate on meeting the requirements of their customers.




In the case of multiple servers connected to a reverse proxy, the reverse proxy is also responsible to control which requests are placed on which server. There may be several web servers providing the exact same service, but serving different types of resources or a mix of both. They may use the HTTP protocol like a traditional web server, but they can also be equipped with protocols for application servers such as FastCGI. A reverse proxy is used to connect clients to specific servers based on the type of resource they're seeking, or to adhere to specific rules for traffic volume.




Reverse proxies benefit from their placement on top of web servers, by providing the ability to cache information. Massive static content can be configured using caching rules to prevent hitting web servers with each request. Some applications allow users to serve static content directly, without having to connect to the web server at all. Furthermore reverse proxy is capable of compressing these assets.




The well-known Nginx webserver is a reliable reverse proxy solution. Although it is factual that Apache web server comes with reverse-proxy capabilities feature, however, it's a separate feature of Apache however Nginx was initially designed for and focuses specifically on the reverse proxy feature.



Differentiating Forward Proxy from Proxy Use. and Reverse Proxy Use



Because "forward" along with "reverse" have connotations of directionality and misleading comparisons with "incoming" as well as "outgoing" traffic. These labels are confusing because both types of proxy can handle requests and also respond. Instead, a better way to distinguish between reverse as well as forward proxies would be to research the specifications of the application that you're developing.




Reverse proxy is an essential element to consider when designing a system that allows web-based applications on the internet. They serve as your servers when you are connected to the internet.




Forward proxy can be useful when placed in front of people for personal use, or even in a business setting. They are your customers when you use the internet.




Utilizing case-based differentiation instead of focusing solely on similar names can help avoid confusion.



Conclusion



The article described what a proxy is and the two kinds of them, namely the reverse and forward proxy. Examples of practical application scenarios as well as an analysis of features that are useful were used to distinguish between forward and reverse proxies. If you're interested to learn more about the advantages of proxies, you can read our tutorial on how to configure Nginx as an reverse proxy and internet server to Apache on the Ubuntu 20.04 server.



If you beloved this article and you would like to obtain more info about Proxy Sites kindly visit our web site.