resolv.conf ends up empty after disconnecting from one of two connections

[Mikel Ward]

Step 1: Connect using Mobile Broadband (click on Next G item in NM applet)
resolv.conf then contains:
# Generated by NetworkManager
nameserver <ISPNAMESERVER1>
nameserver <ISPNAMESERVER2>

Step 2: Connect using Ethernet (click on Work item in NM applet)
resolv.conf then contains:
# Generated by NetworkManager
domain <WORKDOMAIN1>
search <WORKDOMAIN2>
nameserver <WORKNAMESERVER1>
nameserver <WORKNAMESERVER2>
nameserver <ISPNAMESERVER1>
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.
nameserver <ISPNAMESERVER2>

Step 3: Disconnect from Mobile Broadband (click on Disconnect item in NM applet)
resolv.conf then contains:
# Generated by NetworkManager

and nothing else.

Not sure if default routes are handled properly in this case either.

[Mikel Ward (mikelward)]

Oh, and there is also an Auto eth2 connection defined. As soon as I plug in the Ethernet cable, it starts trying to connect to that. I click on Work before it finishes since the Auto settings don't work.

[Alexander Sack (asac)]

do you have resolvconf installed? If so please attach your full /etc/resolvconf/ directory while you have two dns entries in there, so i can check whats the state is

[Mikel Ward (mikelward)]

I'm not sure. Looks like that directory is provided by squid and avahi-daemon.

mward@laptop:/etc/resolvconf
$ dpkg -S /etc/resolvconf
squid, avahi-daemon: /etc/resolvconf

mward@laptop:/etc/resolvconf
$ dpkg -l squid
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-========================================-========================================-================================================================================================
ii squid 2.7.STABLE3-4.1ubuntu1 Internet object cache (WWW proxy cache)

mward@laptop:/etc/resolvconf
$ dpkg -l avahi-daemon
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-========================================-========================================-================================================================================================
ii avahi-daemon 0.6.23-4ubuntu4 Avahi mDNS/DNS-SD daemon

[xteejx (xteejx)]

This bug report hasn't been updated for quite some time. Can you test this in 10.10 and tell us if this is still an issue? Thank you.

[Launchpad Janitor (janitor)]

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]