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# Module for rdnssd, a daemon that configures DNS servers in
# /etc/resolv/conf from IPv6 RDNSS advertisements.
{ config, lib, pkgs, ... }:
with lib;
{
###### interface
options = {
services.rdnssd.enable = mkOption {
default = false;
#default = config.networking.enableIPv6;
description =
''
Whether to enable the RDNSS daemon
(<command>rdnssd</command>), which configures DNS servers in
<filename>/etc/resolv.conf</filename> from RDNSS
advertisements sent by IPv6 routers.
'';
};
};
###### implementation
config = mkIf config.services.rdnssd.enable {
jobs.rdnssd =
{ description = "RDNSS daemon";
# Start before the network interfaces are brought up so that
# the daemon receives RDNSS advertisements from the kernel.
startOn = "starting network-interfaces";
# !!! Should write to /var/run/rdnssd/resolv.conf and run the daemon under another uid.
exec = "${pkgs.ndisc6}/sbin/rdnssd --resolv-file /etc/resolv.conf -u root";
daemonType = "fork";
};
};
}
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