Public bug reported:
I have a PC with two wired Ethernet interfaces, running Kubuntu Gutsy.
One interface is not configured. However, it always come up at boot.
This is incorrect behavior- unconfigured interfaces should not come up
at boot. I read in the release notes that NetworkManager takes charge of
unconfigured interfaces, and decides that it knows better than the user
what their network interfaces should do. So I gave the interface a
minimal configuration in /etc/network/interfaces. I tried both of these:
iface eth0 inet manual
and
iface eth0 inet static
address 192.168.2.25
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255
Neither of these configurations should cause the interface to come up at
boot- this requires the line "auto eth0". However, on Kubuntu Gutsy it
does.
Next, I tried using Kubuntu's "system settings -> network settings", and
un-checked "Activate when the computer starts." This has no effect- eth0
still comes up at boot.
Network management on Kubuntu Gutsy is a mess. "Network Settings"
doesn't save profiles (bug #73788, reported 2006-11-29 and still
broken), the Help file is still broken (bug #57831, reported 2006-08-26
and still broken) and untangling NetworkManager, HAL, udev, ifupdown,
and the interfaces file to try to figure out who's doing what is a
beastly job.
** Affects: ubuntu
Importance: Undecided
Status: New
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Kubuntu Gutsy "network settings" does not save settings, interfaces come up
when they shouldn't
https://bugs.launchpad.net/bugs/189369
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