There are tools that are extremely useful and once configured properly will last a long time with little or no maintenance required at all. Web servers are a common example of tools that come to my mind that can be a swiss-army knife and serve a lot of purposes.
Whether you choose Apache, Nginx or IIS, just to pick some of the most famous ones, it’s very important to know at least most of the features that they offer. So it’s very important to get familiar with at least one of them, reading the documentation and start experimenting a bit.
