⚠️ Storing SSH keys on disk can be dangerous. Using a hardware crypto key can help mitigate key exfiltration from your local or remote hosts.

This assumes you already added a GPG key to your Yubikey and now just want to forward it to a remote host.

./yubikey_gpg-agent-forward.sh admin host.example.com

The important part here is typing the username and hostname/IP. These variables are needed to write a correct config.

git clone https://github.com/stationgroup/gpg-agent-forward.git && cd gpg-agent-forward && ./yubikey_gpg-agent-forward.sh USER HOST.COM