On Mon, Sep 28, 2020 at 11:41:12PM -0700, John M. Harris Jr wrote: > On Monday, September 28, 2020 9:39:17 AM MST Michael Catanzaro wrote: > > You can do this, but again, you need to use the command line. E.g. > > 'resolvectl dns tun0 8.8.8.8' > > > > We're actually no longer debating how systemd-resolved works; rather, > > we're now debating how NetworkManager chooses to configure > > systemd-resolved. systemd-resolved just does what it's told to do. It's > > actually NetworkManager that decides to split DNS according to routing > > by default as a matter of policy. It could do otherwise if it wanted > > to, but I think this is a good default. Nothing stops you from changing > > it though. :) > > Michael, > By what mechanism does NetworkManager "split DNS according to routing"? If it > hasn't already made a request from both your cleartext and your VPN > connection's DNS servers, it has no way of knowing what network should be > used > to get the right results. Routing and DNS are unrelated.
NetworkManager pushes DNS server configuration (and associated bits like domain search and routing domains) over dbus to resolved. That way it "[tells resolved how to] split DNS according to routing". Of course, after the name has been resolved to an IP address, the packets to that IP address are routed too. So there is "routing" in the sense of deciding which interface is appropriate for a given DNS name and "routing" in the sense of deciding which interface is appropriate for a given IP address. Zbyszek _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
