Update openssh 8.2 on debian server

It is necessary to have stable servers, but sometime you want new fresh software. In this case, we are going to quickly update openssh, to have all the new features like FIDO auth.

Edit sources & install

sudo echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
sudo apt-get update
sudo apt-get install openssh-sftp-server/buster-backports openssh-server/buster-backports

Test version

Voila!

~# ssh -V
OpenSSH_8.4p1 Debian-2~bpo10+1, OpenSSL 1.1.1d  10 Sep 2019