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

The word "proxy" is a reference to a proxy or proxy server. It is software which serves as an intermediary between a client and server via the internet. Without the use of a proxy, a user could send a request to the resource directly to a server and the server would provide direct access to that resource. Although this method is easy to comprehend and implement using proxy servers, it could provide advantages in terms of enhanced performance and privacy, security and much more. In addition, a pass-through a proxy serves as a security guardian for the internet between servers and clients.




The mixture of the server's hardware and proxy software is commonly referred to as proxy servers. This article will focus on proxies which are usually described as software, as well as in the context of web servers. The article will offer details of the two primary kinds: forward proxy and reverse proxy. reverse proxy. Each kind of proxy has its own situation, and is frequently confused due to the similar namesake convention.




This article will provide the basics of what subtypes and proxies are and what they can do in the common configurations. After reading this article, you'll be able to determine the situations in which using proxies can be beneficial, and choose the best choice between forward proxy and reverse proxy in any given situation.



Understanding Forward Proxies



Forward proxy also referred to by the name of an open proxy is an agent used by the user seeking to make an online request to a server. In this scenario, the entire process of sending requests initiated by the client is directed via the forward proxy. The forward proxy, acting on behalf of the client, will review the request. It first decides if the client is authorized to make requests through this specific forward proxy. It will then either reject requests or redirect it to the server that originally made the request. The client doesn't have a direct connection to the internet. It can access only the information that the forward proxy permits it to connect to.




The most common reason for using forward proxy is the need to increase security or privacy online. A forward proxy links to internet, not the client and, in this way, it is using an IP address that is different from the original IP address used by the user.




Based on how it has been created, the forward proxy will offer various functions based upon the way it's configured, which allows you to:




Beware of ad-tracker.


Circumvent surveillance.


Find restrictions that are based on your location.




Forward proxies can also be utilized in systems that offer security centrally and access that is based on permissions like in workplaces. If all internet traffic flows through an open forward proxy, the administrator can limit access to a limited number of users to the internet. This is filtered by the common firewall. Instead of creating firewalls for the client layer, which can include multiple machines with different settings and users the firewall could be installed at the layer that forwards proxy data.




Be aware that forward proxies need to be manually configured for use, and reverse proxies may be ignored from the clients. Based on the type of the IP address that the user, it is sent to the server from which it originated through the forward proxy, privacy and anonymity could be granted or hidden.




There are a variety of alternatives to think about in the case of forward proxy alternatives:




Apache is an incredibly well-known open source web server that provides forward proxy functions.


Nginx: Another well-known open-source web server that comes with the ability to forward-proxy.


Squid is an open-source forward proxy that uses an HTTP protocol. It's not part of the complete webserver system. We've got a guide on how you can set up Squid proxy to enable private connections within Ubuntu 20.04.


Dante Forward proxy that utilizes the SOCKS protocol instead of HTTP which makes it better to handle situations like peer-to-peer connections. It is also possible to learn how to configure Dante proxy to allow private connections in Ubuntu 20.04



Understanding Reverse Proxies



A reverse proxy functions as an agent for a web server that handles requests from users for. The web server may comprise a single server, or even multiple servers. It may also act as an application server like Gunicorn. In all cases, the request will be sent through the internet generally. In most cases the request will be sent directly to the server that hosts the content that the user is seeking. A reverse proxy serves as an intermediary, separating this webserver from direct interactions with the internet's open.




From the point of view of a user the experience of working with reverse proxy is no different than interacting with your website server directly. It's basically the same, but the client can't discern the distinction. A client submits an inquiry for an item and gets it without any additional configuration needed from the user.




Reverse proxy providers provide features like:




Security centralized for web servers.


Direction of the traffic coming in is determined by rules you can establish.


The caching function is now available to users.




While central security is an advantage of both forward and reverse proxy servers, reverse proxy servers provide this advantage only to the server layer, and not the layer that clients use. instead of the maintenance of firewalls on the web servers layer, which could contain several servers with various configurations, the bulk protection of the firewall is placed at the layer of reverse proxy. Additionally, removing the burden of interfacing with firewalls as well as interacting with requests from clients without web servers allows them to focus on meeting the requirements of their customers.




When there's multiple servers operating as a reverse proxy, the reverse proxy is accountable for directing which requests are directed towards which servers. There could be several web servers that provide the same service, but each having different resources or a mixture of both. They can use an HTTP protocol to serve as a standard web server, but they may also be equipped with applications server protocols such as FastCGI. You can set up reverse proxy servers that redirects users to certain servers based on the requested resource, or to conform to certain rules regarding the volume of traffic.




Reverse proxies also can benefit from their location on top of web servers by offering the capability to store data. Massive static resources can be configured by using caching rules in order to prevent the web server from being hit with each request. Some solutions allowing users to upload static files directly without having to connect to a web server in any way. Additionally reverse proxy has the capability to compress these assets.




The well-known Nginx web server also functions as a very popular reverse proxy option. While Apache can also be regarded as a reverse proxy service, it is not a reverse proxy solution. Apache web server comes with reverse proxy feature as an extra option for Apache and Nginx was originally designed and focuses on the reverse proxy feature.



Differentiating the use of forward and reverse proxy Examples



Since "forward" and "reverse" are associated with an impression of directionality, and false comparisons are made to "incoming" and "outgoing" traffic could be confusing as both types of proxies deal with both responses and requests. An alternative approach to distinguish between forward and reverse proxy is to consider the requirements of the application you're developing.




A reverse proxy could be useful in the development of a solution to provide web-based applications over the internet. They act as your web server whenever you use the internet.




Forward proxy is useful when placed in front of customers for personal use, or in a workplace. They are a representation of the client's activity when you use the internet.




The use case-based distinction rather than focusing on the most common naming conventions can help in eliminating confusion.



Conclusion



This article clarified the definition of a proxy using two types of proxy: the forward proxy and the reverse proxy. Practical examples of use and a discussion of most effective features were employed to differentiate between forward and reverse proxies. If you're interested in exploring the benefits in proxy server, you can learn how to set up Nginx as an internet server and reverse proxy to Apache using an Ubuntu 20.04 server.



In the event you liked this post as well as you desire to get more info regarding Proxy Sites (https://jobs.blooloop.com/) kindly stop by our own web-site.