F21 System Wide Change: Default Local DNS Resolver

P J P pj.pandit at yahoo.co.in
Tue Apr 29 14:10:13 UTC 2014


On Tuesday, 29 April 2014 7:22 PM, Miloslav Trmač wrote:
>So what exactly happens on upgrade?  Before the upgrade,
>most resolv.conf files will not point to
>What will they point to after the upgrade, and if they will point to,
>which package will actually do that, and what will happen with the old contents
>of the file? For example, is it assumed that ifcfg-* are always authoritative
>and it's safe to just overwrite resolv.conf?

   After upgrade, the default DNS resolver should listen on And the entry will be added to '/etc/resolv.conf' by NetworkManager. The old contents of the file should be passed on to the local resolver as transitory name servers. The actual workflow is currently being worked upon.

>Similarly, what do we tell users who used to edit /etc/resolv.conf to do in the new system?

  We tell users to never edit the '/etc/resolv.conf' file and ensure that the local resolver is listening at
>Generally, the page doesn't actually say which resolver will be used.  Has that been decided?  Or is that intentionally undefined?

  The choice of the default resolver is not yet done. From the discussion so far unbound(https://unbound.net/) appears to be the strong contender.


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