KB ID: 115226

Overview

This article provides the necessary prerequisites for automatically adding a Proxmox VE host to the BDRSuite Backup Server. Ensuring these requirements are met allows seamless connectivity and communication between the Proxmox VE host and the backup server, enabling efficient backup management.

Supported Platforms

• Proxmox VE: Versions 8.2, 8.1, 8.0, and 7.4

System Requirements

• Memory: Minimum 2 GB
• CPU: Minimum Dual-Core Processor

Prerequisites

1. User Account with Root Privileges

• Ensure the user account specified to add the Proxmox VE Host has root privileges.
• If using a non-root account, provide the root password when prompted during setup.

2. User Account Credentials

To connect to the Proxmox VE host, use one of the following methods:

• Linux Account Option: Directly connect using the username and password of the specified user account.

• Linux Private Key Option: Use the Identity/Pubkey authentication method to connect.

  Generating a Public-Private Key Pair:

  1. Generate the Keys: Run the following command on your local machine:

     ssh-keygen -t rsa

  2. Specify the File Location: Choose the directory and file name (e.g., .ppk or .pem) to save the private key. Example:

     /home/key.ppk

  3. Enter a Passphrase: You may enter a passphrase to secure the private key or leave it empty.
  4. Locate Saved Keys:
     • The private key will be saved in the chosen location (e.g., /home/key.ppk).
     • The corresponding public key will be saved as /home/key.ppk.pub.
  5. Update Key Permissions: Run the following commands to set the correct permissions:

     chmod 755 /home/key.ppk
     chmod 755 /home/key.ppk.pub

  6. Add Public Key to Proxmox VE Host:
     • Use the command below to add the public key to the authorized_keys file on the Proxmox VE host:

       ssh-copy-id -i /home/key.ppk.pub <username>@<Host IP Address>

     • Example:

       ssh-copy-id -i /home/key.ppk.pub admin@192.168.102.11

  7. Transfer the Private Key to Backup Server: Copy the private key file (/home/key.ppk) to the backup server using an FTP tool. Ensure the public key is on the Proxmox VE host and the private key on the backup server.

3. Port Configuration

• SSH Port: Confirm that the SSH port (default: 22) is open and accessible. If the SSH server uses a different port, ensure that it is accessible for remote connection.
• BBA Port: The BDRSuite Backup Agent (BBA) on the Proxmox VE Host communicates with the Backup Server on port 42005. Verify that firewall rules allow traffic on port 42005 for seamless connectivity.