Preparation

On machines running Windows

1. Make sure that the machines meet the system requirements.
2. For successful installation on a remote machine running Windows XP, the option Control panel > Folder options > View > Use simple file sharing must be disabled on that machine.

   For successful installation on a remote machine running Windows Vista or later, the option Control panel > Folder options > View > Use Sharing Wizard must be disabled on that machine.

3. For successful installation on a remote machine that is not a member of an Active Directory domain, User Account Control (UAC) must be disabled.
4. File and Printer Sharing must be enabled on the remote machine. To access this option:
   • On a machine running Windows XP with Service Pack 2 or Windows 2003 Server: go to Control panel > Windows Firewall > Exceptions > File and Printer Sharing.
   • On a machine running Windows Vista, Windows Server 2008, Windows 7, or later: go to Control panel > Windows Firewall > Network and Sharing Center > Change advanced sharing settings.
5. Acronis Backup uses TCP ports 445 and 25001 for remote installation. Also, it uses TCP port 9876 for remote installation and for communication between the components.

   Port 445 is automatically opened when you enable File and Printer Sharing. Ports 9876 and 25001 are automatically opened through Windows Firewall. If you use a different firewall, make sure that these three ports are open (added to exceptions) for both incoming and outgoing requests.

   After the remote installation is complete, you can remove ports 445 and 25001 from exceptions. Port 25001 is automatically closed through Windows Firewall. Port 9876 needs to remain open.

On machines running Linux

1. Make sure that the machines meet the system requirements.
2. Check that each of the machines meets the prerequisites for local installation of Agent for Linux, except for the "Installation files" step.
3. Make sure that TCP port 22 is opened and that the SSH daemon is running on each of the machines. After the remote installation is complete, you can close the port and stop the SSH daemon.
4. Open TCP port 9876 on each of the machines. Acronis Backup uses this port for communication between the components; therefore, it must remain open for both incoming and outgoing requests.