Thanks Gianfranco, it makes sense now. So there is definitely some (transparent)proxy/firewall that is probably misconfigured and does not really understand how the Internet works. Should it be spoon-fed a more typical test URI? Maybe yes. Just keep in mind the mere "connectivity" idea is very subjective and a bit of a lost cause in the presence of such "middleboxes":
https://lwn.net/Articles/745590/ QUIC as a solution to protocol ossification - Jonathan Corbet Drop the trailing dot now but at some other time and/or somewhere else the connectivity check fails again due to some other, unexpected filtering. Note how many pages you can find with https://www.google.com/search?q=disable+connectivity+check :-) > We might even patch network manager to strip the "." after the dns resolution process if needed, I have to check the code If you want to keep both variants somehow, then I think it would be more flexible and generally much better for NM to simply support a list of MULTIPLE test URIs and return "Connected" when getting a reply from any of them. That would give not just distributions but anyone including end-users the flexibility to work around a LOT of misconfiguration and bugs in middleboxes. Captive portals can be especially buggy and according to https://networkmanager.dev/docs/api/latest/NetworkManager.conf.html#id-1.2.3.13, captive portals is one of the main use cases. Instead of some obscure, DNS-specific hack in NetworkManager, this is just an actual NM feature that also provides redundancy. Multiple URIs could even let end-users decide whether they want to be "connected" or not when their laptop happens to be in a private network that is actually and completely _disconnected_ from the Internet! They could add an internal URI to the list instead of looking at https://www.google.com/search?q=disable+connectivity+check The icing on the cake would be for the list of test URIs to be the combination of multiple [connectivity] section across different "NetworkManager/conf.d/*.conf" files. Now that list becomes "scriptable". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2148643 Title: [SRU] connectivity-check.ubuntu.com URL change? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2148643/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
