Alright, so I'm looking at securing a new server I have acquired for some very basic web hosting. Part of that is to turn off password logins and go with an SSH Key only login. I also have multiple computers that I'm going to need to make this work.
I see when I generate a key it includes my username and hostname for the machine I'm currently on. Is there a way to make a generic key that I can use across multiple computers? Or is it better to create multiple keys, one for each computer, and add each to the authorized keys file?
The next thing is using the key with the iOS app Prompt. It allows you to store a key but I have no idea how exactly it works with regard to using a key generated using a particular user/host from another machine. I'm guessing not many others will know, but this is part of the reason I ask. How would you more savvy users set this up?