Prerequisites Ensure the following prerequisites are met before installing KeySafe 5 Service. Software Prerequisites A supported Security World installation. Please see the release notes for details. Network Prerequisites The following network configuration: Inbound TCP port 18084 must be open for KeySafe 5 Agent communication. Inbound TCP port 18080 must be open if you want to access the WebUI/API externally. Entrust recommends enabling authentication before exposing the WebUI/API externally.