| Technical Details
IntroductionThe Quadronyx Connectivity Checking service is designed for checking your Internet connection's Internet connectivity (such as from NetworkManager)
UsageYou can set the Quadronyx checking URI ( http://c.qdnx.org/connected/ or https://c.qdnx.org/connected/ ) in your NetworkManager configuration file. eg.
# Overrides: /usr/lib/NetworkManager/conf.d/20-connectivity.conf [connectivity] # To disable: #url= # Quadronyx uri=http://c.qdnx.org/This file will most likely be somewhere like:
/etc/NetworkManager.confOr a custom configuration, such as:
/etc/NetworkManager/conf.d/20-connectivity-override.confFor more information, see the NetworkManager.conf(5) man page.
Technical DetailsThe Quadronyx checking page ( http://c.qdnx.org/connected/ or https://c.qdnx.org/connected/ ) returns a 200 page found code, containing the default NetworkManager string "NetworkManager is online". It also sets the "X-NetworkManager-Status" header to the value "online".
The "Content-Length" header is set to hopefully ensure the quickest return time possible.
Lastly, the "Pragma", "Cache-Control" and "Expires" headers are set to try to avoid proxy caching.