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modules/config/networking.nix: recognize whether a local DNS resolver is available

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resolvconf prefers a locally running BIND resolver over the forwarders; we just
have to tell it whether we have one or not. We use 'config.services.bind.enable'
to make that decision, assuming that people are not going to configure a local
BIND that won't respond to queries on 127.0.0.1. If we run into such a (weird)
case, then we'll need to introduce another variable for that purpose which can
be set independently from 'config.services.bind.enable'.
This commit is contained in:
Peter Simons 2012-07-02 15:01:02 +02:00
parent f22dbd5e05
commit 56373744b4
1 changed files with 3 additions and 0 deletions
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modules/config/networking.nix
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@ -68,6 +68,9 @@ in
# Invalidate the nscd cache whenever resolv.conf is # Invalidate the nscd cache whenever resolv.conf is
# regenerated. # regenerated.
libc_restart='${pkgs.upstart}/sbin/start invalidate-nscd' libc_restart='${pkgs.upstart}/sbin/start invalidate-nscd'
'' + optionalString config.services.bind.enable ''
# This hosts runs a full-blown DNS resolver.
name_servers='127.0.0.1'
'' ); '' );
target = "resolvconf.conf"; target = "resolvconf.conf";
} }