This version of GitHub Enterprise Server was discontinued on 2024-03-26. No patch releases will be made, even for critical security issues. For better performance, improved security, and new features, upgrade to the latest version of GitHub Enterprise Server. For help with the upgrade, contact GitHub Enterprise support.
Hardening security for your enterprise
You can configure features and settings to harden security for your enterprise.
Configuring TLS
You can configure Transport Layer Security (TLS) on your GitHub Enterprise Server instance so that you can use a certificate that is signed by a trusted certificate authority.
Troubleshooting TLS errors
If you run into TLS issues with your appliance, you can take actions to resolve them.
Enabling private mode
In private mode, GitHub Enterprise Server requires every user to sign in to access the installation.
Enabling subdomain isolation
You can set up subdomain isolation to securely separate user-supplied content from other portions of your GitHub Enterprise Server appliance.
Configuring host keys for your instance
You can increase the security of your GitHub Enterprise Server instance by configuring the algorithms that your instance uses to generate and advertise host keys for incoming SSH connections.
Configuring SSH connections to your instance
You can increase the security of your GitHub Enterprise Server instance by configuring the SSH algorithms that clients can use to establish a connection.
Configuring the referrer policy for your enterprise
You can increase the privacy of your GitHub Enterprise Server instance by configuring the policy for cross-origin requests.