Backup Agent Allowed Connections List

MBS Backup Agent uses network connections. Some of them may be restricted by firewalls, antivirus software, or company's security policies. To solve the issue, check the list of allowed connections for Backup Agent would function properly.

For Backup Agent

TCP ports:

  • 80
  • 443

Domains. Domains are storage-specific, so it is reasonable to list as allowed only domains for storage providers that you are using:

  • For AWS: * (full list of endpoints can be found here)
  • For Microsoft Azure: *
  • For Google Cloud:
  • For Backblaze B2:
  • *


  • Online Backup.exe
  • cbb.exe

The .net 4.5 framework can be installed on instances running on Windows 7 or later Windows versions. In case .net 4.5 cannot be installed, consider to use offline product activation