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I'm exploring using the node-http-proxy proxy server so that I can have our proxy server on port 80 forward requests to our app server on port 8000. However, I'm a little confused as to why this is a good idea, and what exactly this set up would protect against security-wise.
The note-http-proxy documentation discusses a lot about using it as a way to forward requests to an app with multiple ports or ip addresses. This obviously would be very useful, particularly with a basic round-robin load balancer strategy. However, we only have one app on one port, so there is no need for us to do this.
If there is an important security reason why we should be using this proxy-server, then I'd love to know what types of attacks it protects against. Also, we're using socket.io, so if there is something that the proxy does to help the websocket server scale up, I'd like to understand that as well. We're having trouble figuring out how to run our app without sudo (since all ports below 1024 require root access), so if there really is no good reason to use a proxy server at this point, we're just going to scrap at. If anyone knows how to run this app with the proxy server on port 80 without root access, that'd be very helpful as well. Thanks!
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The basic purpose of Proxy servers is to protect the direct connection of Internet clients and internet resources. The proxy server also prevents the identification of the client's IP address when the client makes any request is made to any other servers.
node-http-proxy is an HTTP programmable proxying library that supports websockets. It is suitable for implementing components such as reverse proxies and load balancers.
The http-proxy-middleware module does not return a promise, instead it returns an express middleware. You can use a custom filter to decide whether or not to proxy the request. You need to add the pathRewrite options in order to rewrite the url according to the current hostname.
Proxy servers act as a firewall and web filter, provide shared network connections, and cache data to speed up common requests. A good proxy server keeps users and the internal network protected from the bad stuff that lives out in the wild internet.
The reasons for running a reverse proxy are:
Unless your needs are quite simple, it would be better to use a dedicated proxy such as HAproxy since node-http-proxy is rather simplistic.
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