The next step is to place the public key on your server so that you can use SSH-key-based authentication to log in. You now have a public and private key that you can use to authenticate. The key fingerprint is: SHA256:gGJtSsV8BM+7w018d39Ji57F8iO6c0N2GZq3/RY2NhI The key's randomart image is: +-+ | ooo. Your public key has been saved in /home//.ssh/id_rsa.pub. # ssh-keygen Enter file in which to save the key (/home//.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /home//.ssh/id_rsa. In this guide, we’ll set up SSH keys for a CentOS 7 Generate a Key Pair A general understanding of how SSH keys work will help you decide how and when to use them to meet your needs. Key-based authentication is not without its drawbacks and may not be appropriate for all environments, but in many circumstances it can offer some strong advantages. When used with a program known as an SSH agent, SSH keys can allow you to connect to a server, or multiple servers, without having to remember or enter your password for each system. The major advantage of key-based authentication is that in contrast to password authentication it is not prone to brute-force attacks and you do not expose valid credentials, if the server has been compromised.įurthermore SSH key authentication can be more convenient than the more traditional password authentication. SSH keys can serve as a means of identifying yourself to an SSH server using public-key cryptography and challenge-response authentication.
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