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docs/content/github/authenticating-to-github/about-ssh.md
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title, intro, redirect_from, versions
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About SSH Using the SSH protocol, you can connect and authenticate to remote servers and services. With SSH keys, you can connect to {% data variables.product.product_name %} without supplying your username or password at each visit.
/articles/about-ssh
free-pro-team enterprise-server
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When you set up SSH, you'll generate an SSH key and add it to the ssh-agent and then add the key to your {% data variables.product.product_name %} account. Adding the SSH key to the ssh-agent ensures that your SSH key has an extra layer of security through the use of a passphrase. For more information, see "Working with SSH key passphrases."

{% if currentVersion == "free-pro-team@latest" %}To use your SSH key with a repository owned by an organization that uses SAML single sign-on, you'll need to authorize it first. For more information, see "Authorizing an SSH key for use with SAML single sign-on."{% endif %}

We recommend that you regularly review your SSH keys list and revoke any that are invalid or have been compromised.

{% if currentVersion == "free-pro-team@latest" %} If you haven't used your SSH key for a year, then {% data variables.product.prodname_dotcom %} will automatically delete your inactive SSH key as a security precaution. For more information, see "Deleted or missing SSH keys." {% endif %}

{% if currentVersion == "free-pro-team@latest" or currentVersion ver_gt "enterprise-server@2.18" %} If you're a member of an organization that provides SSH certificates, you can use your certificate to access that organization's repositories without adding the certificate to your {% data variables.product.product_name %} account. For more information, see "About SSH certificate authorities." {% endif %}

Further reading