I was watching the instructional video on SSH, https://app.itpro.tv/course-library/ssh/using-cerfificates-ssh/ . I followed everything to the letter but it's giving me the error: Permission denied (publickey). Please help. Thanks.
SSH Certificate Authentication not working
Did you do the ssh-copy-id or just copy paste?
Make sure the permissions are setup correctly. The owner of the file (authorized_keys) is the user your trying to login too.
chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys