2 Answers
Hello,
Basically, it’s telling the SSH command to look at the key file you need for authentication on the destination server. If you use key authentication and were provided a certificate, this is where you want to specify it. If you use normal password auth, ignore that option.
For more use manpage of ssh for -i option explanation.
» ssh ↵
usage: ssh [-46AaCfGgKkMNnqsTtVvXxYy] …
[-i identity_file] …
thanks. what does -i stand for?