Do I need to keep the comment at the end when I copy SSH public keys to another machine?

Question

Say I have a public RSA SSH key that looks like:

ssh-rsa ijvoienvejfvmiejnci3onrvejviewlonvcljnrijcnreionv me@machine

If I’m copying this key to share with another machine, do I include the comment at the end (me@machine)? Do I include the header (ssh-rsa)?

Answer 1

Header yes, comment - up to you;

The header tells of the encryption used, and while it maybe possible to figure it out, it's easier this way ;)

As for the comment at the end, you can keep it, get rid of it or change it as you want.