I am designing a distribution architecture for production environment. But due to little budget, I must cut some of machines, which are not required for production environment. So, I have a question on Edge Node. Is there any difference between Edge Node and Reverse Proxy? As I see the document of distribution architecture, Edge Node is a gateway to communicate between the cluster and outside its network. And, the idea behind Edge server is similar as Reverse Proxy. So, I was wondering why do we need Edge Node instead of Reverse Proxy.
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