Martin-Éric Racine wrote:
Package: dnsmasq
Version: 2.32-2
Severity: wishlist
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Unless I misunderstod some existing configuration option,
there doesn't seem to be any way to make dnsmasq provide
the DNS servers it itself gets to DHCP clients.
Right now, clients receive exactly one search domain and
one DNS server IP (the IP of the dnsmasq host). It would
be desirable to also provide upstream DNS servers IP.
There's a couple of reasons why this isn't, in general, a good idea.
1) The view of the DNS which dnsmasq provides is modified: most
obviously by adding the names in /etc/hosts. Having resolution of
/etc/hosts names randomly fail becasue the resolver used one of the
upstream nameservers directly would be a pain.
2) There's no way to force an update, should the nameservers in use
change. If that's not a problem, because they don't change, then what
you are asking for is already possble by doing
dhcp-option=6,0.0.0.0,<upstream nameserver1>,<upstream nameserver2>
By explicitly specifying the value for option 6, the default gets
overridden, and 0.0.0.0 is replaced with the address of the host running
dnsmasq.
Cheers,
Simon.
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