In case you need to open an remote Mongo server to a ssh tunnel. This covers only the steps for Mongo 3.x, you will need to open ssh for the port as well.

Installing Wordpress with wp-cli is a huge time-saver.

You need to switch between PHP 5.6 and 7.1 on your Ubuntu 16.x, without any docker/vm bs? Here is one of several ways tpo do it.

Sometimes you can’t just upgrade Ubuntu to >=16 which ships a LAMP with PHP 7 by default . As a temporary solution you can upgrade your old LAMP to PHP 7 whilst keeping PHP 5.x available.