Let's say that my username is user
and my computer name is cmp
. I notice they are also part of my SSH public key:
user@cmp:~/.ssh$ ls
config id_rsa id_rsa.pub known_hosts
user@cmp:~/.ssh$ cat id_rsa.pub
ssh-rsa AAAAB3Nzayc2EAABIwAAAQEA4kk3Guk5TwW+MihnO8XjhRLTY11rICPl5iIqlIHWcyuqYyFd
oU4i/VHbJEBiti0fgBztSyZnrW45MyBRG5RU/AFsVuqiRNjyRB59zsLu/J3Uc+fqvy5qNTAAlcMprFnR
N8M6PYl6Tp5gXncbuQaFJmuCgllTcrBrVX0Mep9UvRf5GrZBGprFrY4R/LjH1SFpkQTHFHMI8wMKlsPk
JGJCW9+a/8zmqOrpoE9XRRCfunnROcSq+2MCTRWl7iiligkcdKOq+cbqBNTYV0/6rfyZexArHwh5TeaQ
VdduU0ESN3WVl5i6OwAx2AMz922zZZ/jKWA== user@cmp
What is the purpose of that information?