How to Disable/Enable QUIC at the VHost, Listener, and Server Levels
QUIC can be enabled or disabled at three different levels. It's important to understand how these settings affect each other.
If QUIC is not explicitly turned off at any level, then priority for enabling QUIC is given at the most specific level: Virtual Host, then Listener, then Server.
If QUIC is explicity turned off at any level, then none of the more specific levels may turn it on. In other words, if QUIC is turned off at the Server level, then it cannot be turned on at the Listener level or at the Virtual Host level.
Put another way:
For a particular Virtual Host, QUIC will be ON if:
- Virtual Host Level =
ONor is not set AND - Listener Level =
ONor is not set AND - Server Level =
ONor is not set.
For a particular Virtual Host, QUIC will be OFF if:
- Virtual Host Level =
OFFOR - Listener Level =
OFFOR - Server Level =
OFF.
Here is an example setup:
