Out of the box, secure shell is fairly secure. With the help of ssh key authentication, you can lock down secure shell so that only specific machines can log in. Here's how.

GitHub SSH URL Example HTTPS is a popular mechanism for communicating across the Internet, but security minded organizations tend to prefer SSH. User-generated SSH keys provide a higher level of ...

Figure A Logging in to a remote Linux server, via SSH, using key authentication. Notice the checkbox for Automatically Unlock This Key Whenever I’m Logged In.

When you add a security key to SSH operations, you can use these devices to protect you and your account from accidental exposure, account hijacking, or malware, GitHub security engineer Kevin ...

This change only impacts Git operations over SSH using RSA. Web traffic to GitHub.com and HTTPS Git operations are not affected.” Only GitHub.com’s RSA SSH key was replaced.

Do not change the email address. It must be: git@github.com To test the GitHub SSH connection for the Permission denied error, use the -T switch. If SSH is set up correctly, the output includes a ...