![]() It allows you to insert a comment that will appear in the authorized_keys file. # ssh-keygen -t rsa -C "server comment field" In terminal type the following at the command prompt: Login to the Host via SSH using your preferred terminal application and generate the public / private key pair. Let's setup SSH public key authentication between your home computer (hereafter referred to as the “ Host”) and your QNAP device (hereafter referred to as the “ Client").ġ. The below setup description assumes that you are able to run terminal or a terminal application like Putty, and that you are familiar with basic commands. Transfer / append the public key to the authorized_keys file on the client.Generate the needed Public and Private keys on the host.Security of the system is predicated on the security of the private key. When authenticating, the host machine compares the public key to the private key in order to verify the veracity of the public key. The public key is derived from the private key. Public key authentication uses a pair of computer generated keys - one public and one private – to authenticate between a host and a client. It can also simplify the login process without compromising password security. In addition, public key authentication allows for automated login routines between machines, thus enabling a range of scripted jobs (think rsync or port tunneling). Public key authentication is considered a more secure methods of authenticating the Secure Shell than the simple password challenge routine, a method often broken by brute-force attacks.
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