Note: This documentation refers to Gravio 3.8 or older. For Gravio 4 or newer, please refer to the respective documentation on .

In order to make the secure connection, you will need to install the downloaded certificates to your operating system. HubKit can then verify that you are allowed to access it.

Installing the Certificate on Windows 10

Double click on the certificate file from Explorer

On the certificate window, click on “Install Certificate”

On the Import Wizard, select “Local Machine” and press Next

On the screen that follows, select the “Place all certificates in the following store” radio button, and then select “Trusted Root Certification Authorities”. Press Next and then Finish.

Installing the Certificate on Mac OS X High Sierra

Open “Keychain Access” using Spotlight Search. Select the “System” Keychain category, and drag and drop the key from Finder or the Desktop. You will be prompted for your password.

Right click on the installed certificate (, and select “get info”. Click on the down arrow next to “Trust” and on the dropdown next to X.509 Basic Policy, select “Always Trust”. Close the Window and you will be prompted for your password. The certificate is installed.

Installing the Certificate on Linux (Ubuntu)

  1. Install the ca-certificates program using “@sudo apt-get install -y ca-certificates@”
  2. Move the Gravio certificate file to the folder “@/usr/local/share/ca-certificates@”
  3. Update certificates by using “@sudo update-ca-certificates@”. (Note: The Gravio services may need to be restarted to be able to verify the certificate).

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