This is a good and decent tutorial. It helped me to install openssl-1.0.2l on my 1and1 dedicated server with Plesk Onyx. But tonight I wanted to upgrade to openssl-1.1.0f and it failed by "make test". I ignored it and made "make install". Now the whole openssl (old one) is broken by my mistake. Do you have an advice or help to help me out of this desaster. Deleting and making a new (old or new) installation. Please, help. Lots of greets and thanks for the tutorial which was a gift and basic for other installations (nginx, ngx_pagespeed).