Connection to the equipment through the graphical interface is performed via SSH. Authorization can occur either by password or by using a key — the latter method is more secure.
In this section, we will cover the key-based authorization process.

The configuration file is located at /etc/ssh/sshd_config. We recommend checking the PubkeyAuthentication property — if it is missing, commented out, or set to no, change the property value to yes.

sudo systemctl restart sshd

1. Navigate to the Administrator → SSH Keys section
2. Click on the + at the top of the screen to add a new key
   
3. Enter the key name
4. Upload the public and private key files
   1. If you already have ready-made keys, you can upload them by clicking the appropriate buttons
      
   2. If the necessary ssh files are missing, they can be generated by clicking on the key icon. Optionally, you can add a passphrase. Then click Generate
      
      After generating the ssh files, download the public key to add it to the server.
      If necessary, you can also download the private key — this is only possible at this stage.
      
5. If the private key is encrypted, provide the passphrase set during key creation
   If no passphrase was set, leave the field blank
6. Click Save

1. Navigate to Administrator → Equipment
2. Open the equipment settings. The ssh key can be added to new or existing equipment.
   1. Create new equipment: click on the + at the top of the screen
      
   2. Edit existing equipment: click the edit icon to the left of the equipment
      
3. When creating new equipment, fill in all fields with the necessary information. More details in the Equipment management section.
4. Select the Key-based authorization type
   
5. In the SSH Key field, select the previously created key. Or by clicking on the + create a new SSH key, the process is identical to that described in Step 1. Creating a key (starting from point 4)
   
6. Click Save

1. Under the root user, navigate to the /root/ folder
   Under a regular user, navigate to the /home/<username>/ folder
2. Go to the hidden directory /.ssh/
3. Open the authorized_keys file
4. Add the public key content to the file

After completing these steps, check the connection by clicking on the Hardware State button in the Administrator → Equipment section.
If all properties are in the “Ok” state, the connection was successful.