I use Authy for this. If it's all you use Authy for you can easily get away with just using their free tier. https://github.com/authy/authy-ssh https://github.c

I use Authy for this. If it's all you use Authy for you can easily get away with just using their free tier. https://github.com/authy/authy-ssh https://github.com/authy/authy-ssh