It looks to me as if the purpose of that code is to detect the host DNS
configuration. The section labeled with the comment "Modern Ubuntu
register 127.0.1.1 as DNS server" seems to be executed in case a
loopback address other than the classic 127.0.0.1 is found on a
"nameserver " line in resolv.co
Sorry for the double-post.
I believe this is the code that is causing Virtualbox to behave like this:
https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/Network/slirp/slirp_dns.c#L283
I don't have any idea why it is there, but it says that it's
specifically for "modern" Ubuntu release
Hi Thomas.
Good to hear you can reproduce it.
Anything else I need to do?
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https://bugs.launchpad.net/bugs/1228955
Title:
dnsmasq changeds virtualbox guests PTR queries into A queries
Hi Bar,
I can reproduce the behavior: Debian 7 in VM with NATted network
interface on VirtualBox 4.2.16 on Ubuntu 13.04 with the NetworkManager-
controlled dnsmasq instance running. Using wireshark on the host I see
127.0.1.1 receiving an A query instead of a PTR query.
** Package changed: dnsmas
Hi Thomas,
This is indeed not a dnsmasq issue.
It is Virtualbox, turning PTR queries into A queries when the name
server on the host's resolv.conf file is from 127.0.0.0/8 segment.
I'm still investigating why.
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Hi Thomas,
Because when I disable dnsmasq from NetworkManager config, and I get the
my regular DNS server into resolv.conf (of my host), the Virtualbox
guests behave normal.
so I thought if the issue occurs with dnsmasq, and doesn't occur without
it, then it's dnsmasq's fault and not Virtualbox (
How do you rule out this being VirtualBox's fault?
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https://bugs.launchpad.net/bugs/1228955
Title:
dnsmasq changeds virtualbox guests PTR queries into A queries
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