I run an Ubuntu desktop with a bunch virtual test servers in Virtual Box to test stuff out etc. In the past I've also been connecting to other kinds of remote VPS Linux boxes. Currently my
.ssh/known_hosts file has a whole bunch of keys in them, most are not being used any more.
I want to clean up my
.shh/known_hosts file but how do I know which key belongs to what host? I.e. how do I know which keys I can safely remove and which ones I should leave alone?