I SSH a lot. In the past I’ve pretty much always typed passwords to log on, but when trying to SSH in using my phone, with a good password it’s a pain to say the least. I had SSH Keys setup with password-less login before but usually ended up losing the thumb drive the key was on or updating my system and forgetting to update the key. We won’t discuss the security or best practice here, that’s for another post.
Anyhow I assume you’re reading this post because you want to set up a no password SSH logon by using keys for whatever reason, this post outlines how to do it. (You can also use a pass phrase if you feel so inclined.)