We have just setup a new server on a Debian 8 Jessie VPS. We have the run on Debian 8, newer versions will not run our software. I was trying to install Certbot, using some backport instructions I found, but I get this message: Failed to fetch http://ftp.debian.org/debian/dists/jessie-backports/main/binary-amd64/Packages 404 Not Found.
Is there any way to generate a Letsencrypt certificate on the web? Or can I create one on another machine? It doesn't look like it is doable on Debian 8.