Public bug reported:
I have a VPN set up in Network Manager, which worked well when my system
was running 11.10.
After upgrading to 12.04, I've noticed that DNS changes needed by the
VPN aren't happening. Hosts that only resolve within the VPN won't
resolve, and hosts that are supposed to resolve with different IP
addresses inside the VPN don't.
I can see the new, proper nameserver configuration in /var/run/nm-dns-
dnsmasq.conf. I can resolve properly if I query the name server
directly, i.e. "host <name-to-resolve> <vpn-dns-server-ip>". And, if I
use that IP address instead of the name, I can successfully do things
like ssh. But simple resolution appears to still be using the old name
server.
At one point, I killed off dnsmasq and wrote a new /etc/resolv.conf with
the VPN name servers. That worked, but caused all manner of problems
later.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Fri May 4 09:04:23 2012
EcryptfsInUse: Yes
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
IpRoute:
default via 192.168.50.2 dev eth0 proto static
169.254.0.0/16 dev eth0 scope link metric 1000
192.168.50.0/24 dev eth0 proto kernel scope link src 192.168.50.222 metric
1
192.168.50.0/24 dev wlan0 proto kernel scope link src 192.168.50.106
metric 2
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-05-02 (1 days ago)
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
eth0 802-3-ethernet connected
/org/freedesktop/NetworkManager/Devices/1
wlan0 802-11-wireless connected
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI
WWAN-HARDWARE WWAN
running 0.9.4.0 connected enabled enabled
enabled enabled disabled
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/994575
Title:
dnsmasq does not update nameserver info after network change
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