Alkis: Suppose your host, foo, has external IP address 10.1.2.3 and runs
a standalone nameserver which listens on eth0. Configure things such
that nm-dnsmasq on foo uses 10.1.2.3 as its upstream nameserver;
configure the standalone nameserver on foo not to listen on lo. If it's
dnsmasq, start it with --except-interface=lo. Does this do what you
want?
If so then this may be a very simple way to deal with #959037, at least
with respect to dnsmasq. Network-manager simply drops a file with
except-interface=lo
into /etc/dnsmasq.d/. NM can still use the local standalone dnsmasq via
the external network interface, the address of which it may receive from
the DHCP server, for example.
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https://bugs.launchpad.net/bugs/959037
Title:
NM-controlled dnsmasq prevents other DNS servers from running, yet
network-manager doesn't Conflict with their packages
Status in “djbdns” package in Ubuntu:
New
Status in “dnsmasq” package in Ubuntu:
Confirmed
Status in “network-manager” package in Ubuntu:
Triaged
Bug description:
As described in
https://blueprints.launchpad.net/ubuntu/+spec/foundations-p-dns-
resolving, network manager now starts a dnsmasq instance for local DNS
resolving.
That breaks the default bind9 and dnsmasq installations, for people that
actually want to install a DNS server.
Having to manually comment out "#dns=dnsmasq" in
/etc/NetworkManager/NetworkManager.conf doesn't sound good, and if it stays
that way, it should be moved to the bind9 and dnsmasq postinst scripts.
Please make network-manager smarter so that it checks if bind9 or
dnsmasq are installed, so that it doesn't start the local resolver in
that case.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/djbdns/+bug/959037/+subscriptions
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