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Version: 4.1.1

Release Notes

Highlights

It is strongly recommended to upgrade to this version.

  • Fixed a bug where excessive logging would fill the device disk.

Summary​

The DD Engine is a proxy software designed to work seamlessly with hardware data diodes to enable secure, one-way data flows between network zones. This makes for a modular implementation which allows the customer to choose the host machines on which the proxies run. The firmware includes a hardened Debian OS and support for several services, allowing protocol specific data transfer.

Components​

The release of DD Engine includes the following components:

  • DD Engine firmware:
    • Installer
    • Upgrade
  • Services:
    • File Transfer
      • SFTP
      • SMB
      • NFS
    • HTTP
    • MQTT
    • OPC UA
    • TCP
    • UDP

DD Engine​

Bug fixes​

The following bugs have been solved in this version:

  • Excessive logging would fill the device disk. It is strongly recommended to upgrade to v4.1.1. In some cases, the previous version of the software might not start at all. To remediate this issue a complete reinstall using the Installer is required.

HTTP​

No changes

File Transfer​

No changes

MQTT​

No changes

OPC UA​

No changes

TCP​

No changes

UDP​

No changes

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