====== SSH keys ======
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The connection with equipment is carried out via the SSH protocol.
Add a sudo user on this hardware. See [[dpi:dpi_components:dpiui:user_guide:admin_section:equipment_management:sudo_user|Sudo user]].
=== Configuration sshd ===
Check the **/etc/ssh/sshd_config** file and the **PubkeyAuthentication** property on the connected server.
If the **PubkeyAuthentication** property is missing, commented out, or set to **PubkeyAuthentication no**, then replace the property value with **PubkeyAuthentication yes**
After any changes to the **/etc/ssh/sshd_config** file, restart the sshd service with the command: sudo systemctl restart sshd
=== Authorized keys ===
Add a public key to a specific user's file on the remote server:
/home/username/.ssh/authorized_keys
For root user:
/root/.ssh/authorized_keys