Tentatively confirming; I think I have an idea what might be causing
this, though not necessarily how to fix just yet. Assigning to myself so
I can take a look at the code to figure it out.
** Changed in: network-manager (Ubuntu)
Status: New => Confirmed
** Changed in: network-manager (Ubuntu)
Importance: Undecided => Medium
** Changed in: network-manager (Ubuntu)
Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl)
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https://bugs.launchpad.net/bugs/1163047
Title:
with multiple connections, puts dnsmasq servers in wrong order
Status in “network-manager” package in Ubuntu:
Confirmed
Bug description:
My corporate DHCP servers send 3 DNS servers: 2 internal ones, and a
tertiary backup of 8.8.8.8. If I only connect wired or wireless,
everything appears to work fine as long as I've added "strict-order"
to /etc/NetworkManager/dnsmasq.d/options, but if I connect both, it
appears to invert the first list sent to dnsmasq, and I end up unable
to resolve internal hostnames.
nm-tool output:
- Device: eth0 [Auto eth0]
----------------------------------------------------
...
DNS: 10.0.5.25
DNS: 10.0.5.26
DNS: 8.8.8.8
- Device: wlan0 [Auto COMPANY AP]
-----------------------------------------------
...
DNS: 10.0.5.25
DNS: 10.0.5.26
DNS: 8.8.8.8
syslog output:
Apr 1 16:04:42 taplop NetworkManager[1744]: <info> ((null)): writing
resolv.conf to /sbin/resolvconf
Apr 1 16:04:42 taplop dnsmasq[2155]: setting upstream servers from DBus
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 8.8.8.8#53
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 10.0.5.26#53
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 10.0.5.25#53
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 10.0.5.25#53
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 10.0.5.26#53
Apr 1 16:04:42 taplop dnsmasq[2155]: using nameserver 8.8.8.8#53
nslookup outputs hitting dnsmasq vs/ internal nameserver directly:
$ nslookup rb 127.0.1.1
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: rb.company.com
Address: [www.company.com]
$ nslookup rb 10.0.1.25
Server: 10.0.1.25
Address: 10.0.1.25#53
rb.company.com canonical name = rbp01.company.com.
Name: rbp01.company.com
Address: 10.0.1.35
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: network-manager 0.9.6.0-0ubuntu7
ProcVersionSignature: Ubuntu 3.5.0-27.46-generic 3.5.7.7
Uname: Linux 3.5.0-27-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Mon Apr 1 16:05:18 2013
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationDate: Installed on 2010-04-19 (1078 days ago)
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64
(20100419.1)
IpRoute:
default via 10.9.5.1 dev eth0 proto static
10.9.5.0/24 dev eth0 proto kernel scope link src 10.9.5.59 metric 1
10.9.5.0/24 dev wlan0 proto kernel scope link src 10.9.5.58 metric 9
169.254.0.0/16 dev wlan0 scope link metric 1000
MarkForUpload: True
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to quantal on 2012-10-05 (178 days ago)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
eth0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/2
wlan0 802-11-wireless connected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE
WIFI WWAN-HARDWARE WWAN
running 0.9.6.0 connected enabled enabled
enabled enabled disabled
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