• 목록
• 답변
• 게시판 리스트 옵션
  • 수정
  • 삭제

"proxy" refers to a proxy server "proxy" refers to the fact that a proxy or proxy server is an application that acts as an intermediary between a client and server via the internet. Without the proxy, a client would make a request to any source directly to the server, and it would serve the resource directly back towards the customer. It is easy to understand and implement. adding proxies provides advantages that include improved performance, privacy, security and more. As a layer of pass-through, proxies act as a gatekeeper on the internet between servers and clients.




In general, the set of server hardware along with installed proxy software is also commonly referred to as proxy servers. But, this article will concentrate on proxy servers which are generally described in terms of software and ones that work to complement web servers. This article will give details of the two major kinds, namely the forward proxy and reverse proxy. reverse proxy. Each kind has its own terminology that could be confusing due to the overlapping terminology.




This article will provide an idea of the what proxies as well as their subtypes are and also their significance in normal settings. If you go through this article, you will be able to discern the situations where a reliable proxy could be beneficial, and determine the best option for you between forward proxy and reverse proxy for any situation.



Understanding Forward Proxies



In other words forward proxy, also called open proxy open proxy is an agent for the user trying to make requests online to an server. In this case, any request made by the client is directed by an forward proxy. In this situation, the forward proxy acting on behalf of the client, will look into the request. At first it will decide if it is allowed to send requests to this particular forward proxy. It will then either refuse requests or redirect them to their source server. The client doesn't have a direct access to the internet and is only able to access what the forward proxy allows it to connect to.




The most popular reason to use forward proxies is to provide more privacy or security on the internet. A forward proxy uses the internet for the individual client. And in this way, it may utilize an IP address different from the IP of the user.




Depending on the method by which it's setup the forward proxy may perform a variety of capabilities, including the ability to:




Beware of ad-tracker.


Circumvent surveillance.


You can identify limitations based on your location.




Forward proxies can also be employed in systems to offer central security, as well as access based on permissions, such as in the workplace. If all internet traffic flows through an open forward proxy, the administrator can allow only a handful of clients online access that is blocked by a common firewall. Instead of maintaining firewalls for this layer that could be utilized by multiple computers with various configurations and users and environments, a firewall can be added to the forward proxy layer.




Be aware Forward proxy servers need to be manually setup before they are able to be used while reverse proxy servers could be ignored by clients. Based on whether or not your IP address is transferred to the server that is being used through the forward proxy, privacy and anonymity may be granted or hidden from view.




There are a variety of possibilities to think about when it comes to forward proxy options.




Apache The Apache is a popular open-source web server, that offers forward proxy capabilities.


Nginx: Another popular open-source web server with forward proxy capabilities.


Squid is an open-source forward proxy using the HTTP protocol. It doesn't provide the full web-based server. You can check out our article on the best way to install Squid proxy to connect private networks in Ubuntu 20.04.


Dante forward proxy that runs using the SOCKS protocol rather than HTTP this makes it better to handle situations like peer-to-peer communication. It is also possible to look into how to configure Dante proxy for private connections in Ubuntu 20.04



Understanding Reverse Proxies



A reverse proxy functions to act as an agent of a web server and handles requests made by clients on its behalf. This web server can serve as a single server, or multiple servers. Additionally, it can comprise an application server, such as Gunicorn. In either case, the request might originate from a user on the internet. In most cases, the request will be directed directly to the server on the internet which holds the information that the user is seeking. A reverse proxy acts as an intermediary that isolates the server from direct interaction with the internet's open.




From the viewpoint of the client, interfacing using reverse proxy isn't any different from interacting directly with an internet server. It's the same thing but clients aren't able to tell the distinction. The client asks for an item and receives it without extra configuration required for the customer.




Reverse proxy providers provide features like:




Centralized security to web server.


The direction of traffic coming in is based upon rules that you set up.


Additional functionality to cache data.




Central security is a benefit of both forward and reverse proxy, reverse proxies add this feature only to the layer of the webserver, and not to the client layer. In lieu of maintaining firewalls on the server level which could comprise several servers with different configurations, the majority of firewall security is concentrated on the reverse proxy layer. In addition, removing the burden of interacting with firewalls and coordinating requests from clients off web servers allows firewalls to focus on supplying the required resources.




If there are multiple servers operating through a reverse proxy the reverse proxy could be also responsible for directing what requests are directed to which servers. Multiple web servers could be running on the same server, serving different kinds of services or a combination of both. The servers employ the HTTP protocol to function as a normal web server. However, they could also be equipped with other protocols for application servers like FastCGI. You can create a reverse proxy to route the clients towards specific servers in accordance with the resource requested, or to adhere to certain rules regarding the load of traffic.




Reverse proxies are also able to make use of their positioning ahead of web servers by using caching functions. Large static assets can be set up using caching rules to avoid the web server from being hit with every request, with certain solutions that allow you to serve static content directly, without having to connect to the servers in any manner. Furthermore reverse proxy can be capable of handling compression of these assets.




The popular Nginx web server is also used as an effective reverse proxy option. While Apache is a reverse proxy service, this Apache web server also includes reverse proxy functions, which is an additional option for Apache however Nginx was initially designed for and focuses on the reverse proxy features.



Differentiating Forward Proxy and Reverse Proxy Use Cases



Because "forward" as well as "reverse" are both associated with the notion of directionality and false comparisons to "incoming" as well as "outgoing" traffic the labels could be confusing, because both types of proxies can handle requests as well as respond. The best method to distinguish between reverse and forward proxy services is to think about the needs of the application that you're developing.




A reverse proxy could be helpful when you are developing an option to host web-based applications via the internet. They are your web servers in all interactions on the Internet.




Forward proxy can be useful when presented to clients for personal use, or even in a business setting. They are your client's representative in all interactions via the internet.




Utilizing case-based differentiation instead of focusing on similar naming conventions will assist you in avoiding confusion.



Conclusion



This article explains what is a "proxy" is, with two main types being the reverse proxy and forward proxy. Practical scenarios for use and an exploration of beneficial features were utilized to differentiate the two types of proxies both reverse and forward. If you're looking for ways to make proxies work, look up our guide on how to set up Nginx as an HTTP server and reverse proxy for Apache on an Ubuntu 20.04 Server.



If you liked this post and you would certainly like to receive more details concerning Proxy Sites; postheaven.net, kindly browse through our internet site.