14Mar
Can IP address be a component of 2-factor authentication?
I have a bunch of Linux machines that I wish to administer over the Internet. I currently use SSH keys, but have been advised to use 2-factor authentication. SSH Keys are something you know. Is an IP address something you have? (Yes, IP can be spoofed, but so can biometrics and so can atm cards).
Could I lock down SSH to only allow connections from my IP range and would that be considered 2-factor in conjunction with SSH keys?
