Arguments of Getting Rid Of Proxy Sites > 자유게시판

The phrase "proxy" is a reference to the fact that a proxy or proxy server. It is software which acts as a mediator between client and server on the internet. Without the use of proxy servers, a user could send a request to the resource directly to a server, and then the server would provide direct access to that resource. While this is a simple method to comprehend and implement using proxy servers, it could provide advantages in terms of enhanced performance and privacy, security and more. In addition, a pass-through, a proxy acts as a security guardian of the internet between clients and servers.




The mix of hardware for servers as well as proxy software is commonly known as proxy servers. This article will focus on proxies which are usually described as software as well as being used in conjunction with web servers. The article will offer details of the two kinds: forward proxy and reverse proxy. reverse proxy. Each kind has its own unique usage scenario, which is often not understood due to the identical namesake convention.




This article will give you the knowledge of what proxies and subtypes include and the things they do in the commonly used configurations. After reading this article, you'll be able to identify the instances where using proxies can be beneficial, and choose the best option between reverse proxy and forward proxy depending on the situation.



Understanding Forward Proxies



Forward proxy sometimes known in the context of open proxy. An open proxy is an agent used by users who are looking to transmit an internet request to an source server. In this scenario, the entire effort to send requests from the client is instead directed by the forward proxy. Forward proxy acting in place of the client will examine the request. It first decides if it is legal for the user to make requests through this specific forward proxy. It then decides whether to deny requests or redirect them to the server that originally made the request. The client does not have an internet connection directly. It is able to access only the information that the forward proxy permits it to connect to.




The most common reason to use forward proxy is for greater privacy or security online. A forward proxy links to internet, not the client and, in this way, it is using an IP address that is distinct from the original IP address of the client.




Based on how it is created, the forward proxy can provide various functions based on how it is configured that lets you:




Beware of Ad-trackers.


Circumvent surveillance.


Find restrictions based on your location.




Forward proxies may also be employed in systems that offer central security and access based on permissions like in workplaces. If all internet traffic flows through an open forward proxy, the administrator can restrict access to only certain clients to the internet, which is blocked by the standard firewall. Instead of establishing firewalls for clients, the layer may include multiple machines that have different settings and users the firewall could be placed at the layer which forwards proxy traffic.




Be aware that forward proxies need to be manually configured to be used, while reverse proxies may be ignored in the eyes of the user. Depending on the type the IP address that the user's IP address, the server which originated it through the forward proxy privacy and anonymity can be granted or hidden.




There are many alternatives to think about in the case of forward proxy options:




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


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


Squid is a forward-proxy open source that uses the HTTP protocol. It's not part of the full web server system. There is a video tutorial on how to install Squid proxy to allow private connections in Ubuntu 20.04.


Dante Forward proxy that utilizes the SOCKS protocol instead of HTTP which makes it more suited for scenarios such as peer-to-peer communication. You can also discover how to configure Dante proxy to permit private connections on Ubuntu 20.04



Understanding Reverse Proxies



A reverse proxy functions as an agent for a server on the internet that manages requests from clients on behalf of. The web server may comprise a single server, or a number of servers. It can also function as an application server like Gunicorn. In all cases, the request will be made via the internet, generally. Most of the time the request will be made direct to a server that hosts the resources that the user wants. A reverse proxy serves as an intermediary and separates the webserver from direct interaction with the internet's open.




From the viewpoint of a user the experience of interacting with reverse proxy is no distinct from connecting to your website server directly. It's basically the same however the client can't recognize the difference. The client makes an order for an item, and then receives it, with no extra configuration from the user.




Reverse proxy providers provide features like:




Security centralized on webservers.


Direction of the traffic entering is based on rules you set up.


The caching functionality is now available to users.




While central security is a benefit of both forward and reverse proxy servers, reverse proxies offer this benefit only to the server layer, and not to the layer of clients. Instead of maintaining firewalls at the layer of web servers, which could contain several servers that have different configurations, the majority protection of the firewall is placed in the reverse proxy layer. Furthermore, taking the burden of dealing with firewalls and interacting with requests from customers who don't have web servers allows them to concentrate on the requirements of their clients.




In the event that there's a multitude of servers operating as a reverse proxy, the reverse proxy is responsible for the direction of which requests are directed to which servers. There may be several web servers providing the exact same service, but providing different types of resources or a mixture of both. They can use the HTTP protocol to operate as a normal web server, but they also can be outfitted with protocols for application servers like FastCGI. It is possible to create reverse proxy services to redirect users to specific servers based on the request for resource, or to conform to specific guidelines for the amount of traffic.




Reverse proxies can also benefit from their position on top of web servers, by providing the capability to store data. Massive static resources can be set up by using caching rules in order to prevent hitting web servers with every request. Some solutions allowing you to deliver static files directly, without having to connect to a web server in any way. In addition, reverse proxy is able to handle compressing these assets.




The popular Nginx web server is also used as a well-known reverse proxy option. Although Apache is also a reverse proxy service, the Apache web server also has reverse proxy capabilities as an added option for Apache and Nginx was initially developed for and is focused on the reverse proxy feature.



The difference between the use of forward and reverse proxy Examples



Since "forward" and "reverse" are often associated with a sense of directionality, and false comparisons to "incoming" as well as "outgoing" traffic could be confusing because both kinds of proxies handle requests and responses. An alternative approach to distinguish between forward and reverse proxy is to examine the requirements of the app you're creating.




Reverse proxy is beneficial in the creation of a method to offer web-based services over the internet. They serve as your web servers when you interact on the web.




Forward proxy can be beneficial when placed before clients for personal use or even in a working environment. They represent the traffic of your client when you use the internet.




The use of case-based distinction rather than focusing on commonly used naming conventions can assist in eliminating confusion.



Conclusion



The article delineated the definition of a proxy by comparing the two primary types that are forward and reverse proxy. Examples of how to use them and a discussion of the most effective features were employed to distinguish between forward and reverse proxies. If you're interested in learning more about the advantages in proxy server, you can follow our guide on how to set up Nginx as an internet proxy and reverse proxy for Apache using an Ubuntu 20.04 server.



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