Public bug reported:
I have noticed that dnsmasq might fail when switching
networks/interfaces (wlan0 to eth0).
This looks like this:
Jun 3 16:23:48 lenny dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67
interval 3
Jun 3 16:23:48 lenny dhclient: DHCPREQUEST of 192.168.2.100 on eth0 to
255.255.255.255 port 67
Jun 3 16:23:48 lenny dhclient: DHCPOFFER of 192.168.2.100 from 192.168.2.1
Jun 3 16:23:48 lenny dhclient: DHCPACK of 192.168.2.100 from 192.168.2.1
Jun 3 16:23:48 lenny dnsmasq[1515]: reading /var/run/dnsmasq/resolv.conf
Jun 3 16:23:48 lenny dnsmasq[1515]: ignoring nameserver 127.0.0.1 - local
interface
Jun 3 16:23:49 lenny dhclient: bound to 192.168.2.100 -- renewal in 2147483647
seconds.
Jun 3 16:23:49 lenny ntpdate[29359]: Can't find host ntp.ubuntu.com: Name or
service not known (-2)
or:
Jun 3 16:22:04 lenny ifplugd(eth0)[4679]: Link beat lost.
Jun 3 16:22:04 lenny kernel: [10804.822134] thinkpad_acpi: undocked from
hotplug port replicator
Jun 3 16:22:04 lenny kernel: [10804.822363] ACPI: \_SB_.GDCK - undocking
Jun 3 16:22:05 lenny ifplugd(eth0)[4679]: Using detection mode: IFF_RUNNING
Jun 3 16:22:05 lenny kernel: [10805.907380] e1000e 0000:00:19.0: PME# enabled
Jun 3 16:22:14 lenny ifplugd(eth0)[4679]: Executing
'/etc/ifplugd/ifplugd.action eth0 down'.
Jun 3 16:22:15 lenny dhclient: DHCPRELEASE on eth0 to 192.168.2.1 port 67
Jun 3 16:22:15 lenny dnsmasq[1515]: no servers found in
/var/run/dnsmasq/resolv.conf, will retry
Without much investigation I think that dnsmasq should only be triggered
after /etc/resolv.conf has been updated/changed, but not too early.
>From resolvconf(8):
Subscribers that need to know only when the resolver configuration file
has changed should install a script in /etc/resolvconf/update-libc.d/
rather than in /etc/resolvconf/update.d/. This is important for syn‐
chronization purposes: scripts in update-libc.d/ are run after
resolv.conf has been updated; the same is not necessarily true of
scripts in update.d/. Examples of packages that do this are fetch‐
mail(1) and squid(8).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: dnsmasq 2.59-4 [modified: etc/dnsmasq.conf]
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
Date: Sun Jun 3 17:39:26 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
PackageArchitecture: all
SourcePackage: dnsmasq
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.dnsmasq.conf: 2012-05-29T01:24:45
** Affects: dnsmasq (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
--
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to dnsmasq in Ubuntu.
https://bugs.launchpad.net/bugs/1008126
Title:
Install resolvconf listener for dnsmasq into /etc/resolvconf/update-
libc.d, not update.d
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1008126/+subscriptions
--
Ubuntu-server-bugs mailing list
Ubuntu-server-bugs@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
