Architecture on Abdelbaki Ben Elhaj Slimene

High availability VS Fault Tolerance VS Disaster Recovery

Mon, 20 Mar 2023 00:00:00 +0000

High availability, Fault Tolerance and Disaster Recovery are three concepts to understand for every Solution Architect. These concepts are sometimes mixed and the difference between each one is not clear enough.

High Availability (HA)

First, let’s try to give the definition of high availability. Wikipedia has a pretty good one:

High availability (HA) is a characteristic of a system which aims to ensure an agreed level of operational performance, usually uptime, for a higher than normal period.

Forward Proxy vs Reverse Proxy

Tue, 25 May 2021 00:00:00 +0000

Photo by Pankaj Patel on Unsplash

A proxy is a device that traffic gets routed through it: it is an intermediate between a client and a web server.

There are many types of proxies, each one serves different services. In this article, we are going to explain the difference between a forward proxy and a reverse proxy.

Forward proxy

Proxy

When people say proxy they typically mean a forward proxy.