The scope here concerns use of VPN (Virtual Private Network) to gain secure access from the public network to a local private network. It relates to private secure access and use from the public network. It does not consider public VPNs setup for public use.

There have been considered 3 different levels of access as described by the applications used:

• Nextcloud - a full privately hosted publicly accessible file shareing application, with many additional features
• Privatebin - An encrypted file publicly accessible file sharing server
• Wireguard - A VPN server

These applications and their scope are described further below.

Nextcloud is an open source content collaboration platform. At its core is file-sharing, but it has many other core functions as well as extensibility with additional installed applications.

I have been using Nextcloud and before that Owncloud from which Nextcloud was forked since circa 2013. My server setup is described here:

• kptree nextcloud is Docker based setup, that I currently use.
• kptree nextcloud is a VM setup previously I used.