Public bug reported:
NetworkManager stops and starts dnsmasq very frequently (every few
minutes). During the brief window that dnsmasq is restarting, hostname
resolution doesn't work. dnsmasq is getting restarted frequently enough
that I see brief hostname resolution errors in Chrome several times a
day during normal web browsing.
This is on Precise with network-manager 0.9.4.0-0ubuntu4 and dnsmasq-
base 2.59-4.
The frequent restarts seem to be triggered by IPv6 route advertisements
on my network. (See log snippet below.) When NetworkManager gets a
route advertisement, it reconfigures everything. In the case of
dnsmasq, this means stopping dnsmasq, writing a new config file, and
starting dnsmasq. NetworkManager should restart dnsmasq only if it its
configuration changes.
I'm attaching a snippet from /var/log/daemon.log on my system that
demonstrates a restart. This is with debug logging configured in
/etc/NetworkManager/NetworkManager.conf.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1004775
Title:
NetworkManager restarts dnsmasq very frequently
Status in “network-manager” package in Ubuntu:
New
Bug description:
NetworkManager stops and starts dnsmasq very frequently (every few
minutes). During the brief window that dnsmasq is restarting,
hostname resolution doesn't work. dnsmasq is getting restarted
frequently enough that I see brief hostname resolution errors in
Chrome several times a day during normal web browsing.
This is on Precise with network-manager 0.9.4.0-0ubuntu4 and dnsmasq-
base 2.59-4.
The frequent restarts seem to be triggered by IPv6 route
advertisements on my network. (See log snippet below.) When
NetworkManager gets a route advertisement, it reconfigures everything.
In the case of dnsmasq, this means stopping dnsmasq, writing a new
config file, and starting dnsmasq. NetworkManager should restart
dnsmasq only if it its configuration changes.
I'm attaching a snippet from /var/log/daemon.log on my system that
demonstrates a restart. This is with debug logging configured in
/etc/NetworkManager/NetworkManager.conf.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1004775/+subscriptions
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