Connectivity checking is a NetworkManager functionality that allows periodically testing whether the system can actually access the internet or not. The network-manager snap allows configuring this feature by using the following snap settings:
- connectivity.interval : it specifies the number of seconds between checks. If set to 0, it disables connectivity check. Set to 300 by default.
- connectivity.response : This is the expected HTTP body response from the server specified by connectivity.uri.
- connectivity.uri : The URI where NM is going to periodically access to check connectivity.
More details on how these options work can be found in the connectivity section of the NetworkManager.conf configuration file documentation.
Some example commands on how to set a check every three minutes using the Ubuntu connectivity check server are
$ snap set network-manager connectivity.uri=http://connectivity-check.ubuntu.com/ $ snap set network-manager connectivity.interval=180
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