# Secure Shell (ssh)
Secure Shell is the defacto tool for connecting between devices security in IOT to run commands

- [OpenSSH Documentation](https://www.openssh.org/manual.html)
- [Gitea ssh Setup](gitea-ssh-setup.md)
- [GitHub ssh Setup](https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent)

# Generating a key
After installing ssh, we recommend generating an ECDSA (elliptic crypto key)

    ssh-keygen -t ECDSA

This will ask for a password to encrypt the private key.
**It is very very important that you save this password somewhere safe but easy to retrieve.  If you lose it, you will have to generate a new key pair**

	
This will put the public and private key in your `.ssh` folder
- `id_ed25519`      # your private key, password protected
- `id_ed25519.pub`  # your public key