ssh-keygen -t rsa -b 4096
# or
ssh-keygen -f ~/.ssh/id_rsa_myserver -b 4096ssh-copy-id -i /root/.ssh/id_rsa.pub root@myserverssh -i .ssh/id_rsa username@192.168.XXX.XXXvim ~/.ssh/configHost myserver
User sven
IdentityFile ~/.ssh/id_rsa_myserver
IdentitiesOnly yes
Host 192.168.XXX.XXX
User sven
IdentityFile ~/.ssh/id_rsa_myserver
IdentitiesOnly yes