Ryan: please file a *separate* bug about the issues you're seeing,
preferably attaching /etc/resolv.conf,
/run/resolvconf/interfaces/NetworkManager, and /run/nm-dns-dnsmasq.conf
when you have dns=dnsmasq enabled. That way we'll be able to fix the
issue, but without a bug report there is very little we can do. If it's
something funky that Comcast does, then the fastest there is a bug with
sufficient information the fastest they can be contacted to fix their
DNS servers if they are broken.
Michael: this is expected behavior. Interfaces configured manually in
/etc/network/interfaces are ignored by NetworkManager. If it's your only
interface, then yes, the applet might not show. Please, *please* file a
bug for the particular issues you're seeing; attach all the information
we might need and then we'll be able to fix the issues.
sladner84: if you were able to fix your issues by changing the channel or wifi
speeds or whatnot; then this has nothing to do with dns resolution by itself.
It's a kernel bug. Please confirm what's going on, there's no indication of
anything wrong in the syslog excerpt that is now attached on this bug report.
Thanks!
** Changed in: network-manager (Ubuntu)
Status: Confirmed => Incomplete
** Changed in: network-manager (Ubuntu)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/989900
Title:
DNS Resolve Problems in Ubuntu 12.04
Status in “network-manager” package in Ubuntu:
Incomplete
Bug description:
I just updated to Ubuntu 12.04.
After the update I cannot resolve hostnames reliably:
I use Konsole in Unity. There sometimes the DNS resolving works fine and
suddenly after two commands or so it fails for the same address.
E.g. I ping a machine without DNS-Suffix (the suffix is shown in my network
config correctly aside 3 valid nameserver IPs) and everything works fine. Then
I try to log into the machine with the same address via ssh and I get a "Name
or service not known".
Trying again, it works with a fully qualified name containing the suffix. I
also had cases, when the IP wasn't resolved although I put in the fully
qualified name. When I am more lucky, it starts working again with machine
names only (without suffix, which is configured and worked perfectly up to now)
Is there probably a bug in the new Ubuntu Version?
---
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
DistroRelease: Ubuntu 12.04
IfupdownConfig:
auto lo
iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
IpRoute:
default via 192.168.1.1 dev wlan0 proto static
169.254.0.0/16 dev wlan0 scope link metric 1000
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.2 metric 2
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
NonfreeKernelModules: nvidia
Package: network-manager 0.9.4.0-0ubuntu4
PackageArchitecture: amd64
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: precise
Uname: Linux 3.2.0-24-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
mtime.conffile..etc.NetworkManager.NetworkManager.conf:
2012-05-09T05:01:02.241358
nmcli-con:
NAME UUID TYPE
TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY
DBUS-PATH
Wired connection 1 a76f352c-6e8c-49c7-bc05-b890445abb22
802-3-ethernet 1336943434 Sun 13 May 2012 05:10:34 PM EDT yes
no /org/freedesktop/NetworkManager/Settings/1
Ladner Computer Repair L.N.A 47560d22-54ec-491b-b90f-a41535d69f00
802-11-wireless 1337213171 Wed 16 May 2012 08:06:11 PM EDT yes
no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
wlan0 802-11-wireless connected
/org/freedesktop/NetworkManager/Devices/1
eth0 802-3-ethernet unavailable
/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
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