By default, the installation process requires an internet connection to enable installing dependency packages and for synchronizing the operating system clock against an NTP server.
If you install Redis Enterprise Software on a machine without an internet connection, you need to perform two tasks manually.
Install required dependency packages
When you install Redis Enterprise Software on a machine that is not connected to the internet, the installation process fails and displays an error message informing you it failed to automatically install dependencies. Review the installation steps in the console to see which missing dependencies the process attempted to install. Install all these dependency packages and then run the installation again.
Set up NTP time synchronization
At the end of the installation, the process asks if you want to set up NTP time synchronization. If you choose
Yes while you are not connected to the internet, the action fails and displays the appropriate error message, but the installation completes successfully. Despite the successful completion of the installation, you still have to configure all nodes for NTP time synchronization.