How to reinstall Debian from scratch on a vps that you only have ssh access to?

Question

Debian

I have access to the server via ssh and I need to reinstall the entire operating system there. I don't have access to any panels - only ftp and ssh. Is it possible in this case to reinstall the system completely - so that it removes all existing packages and installs a clean operating system with new ssh access?
If you take a regular vps, then there is such an opportunity - you can mount a separate iso image of the new operating system and start the installation through the web interface. But if there is no such access, then how can this be solved?

Answer 1

Try like this .

Answer 2

Delete old VPS, create new VPS.
On DO it takes about 5 minutes with a smoke break to wait for the system to deploy.