System Design
Proxies
Overview
In the previous article, we described system design as a major phase in software development. It’s a phase where we describe the elements of a system like architecture, components, modules, interfaces, and data based on the system requirements.
We looked at the key characteristics of a system. These are things we can trade off: scalability, Availability, Reliability, and Efficiency.
In this article, we are going to look at the actual components that make a system.
A proxy server is a piece of hardware or software that acts on behalf of a client or server. There are two types of proxy servers:
A forward proxy server sits on the client side forwarding web requests on behalf of the client. When the clients request web content, it goes to the proxy first, then the proxy forwards the request to the web server on behalf of the client using its IP address.
On the other hand, a reverse proxy sits in front of one or more servers, intercepting the requests made by the clients. The proxy will then forward the request to the destination server and receives responses.
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