Ever wondered how to manage interfaces declared in /etc/network/interfaces with NetworkManager? I recently updated an Ubuntu desktop remotely, and to my horror she hadn’t re-appeared after 5000 pings, that’s longer than a disk check.
When I got back in front of the machine I could see she had rebooted just fine, but I had to login locally for NetworkManager to start up the interface. Not ideal.
So I checked /etc/network/interfaces and find these lines commented out:
# eth0 auto
# iface eth0 inet dhcp
Uncomment; job done. The interface will now come up at boot time. Unfortunately NetworkManager ignores any interfaces declared there, which means I can’t easily use my saved VPN connexions, etc.
Checked /etc/NetworkManager/NetworkManager.conf and it was empty. On RTFM NetworkManager.conf man page its clear you can have a lot of control over how your interfaces are managed.
So, sudo vi /etc/NetworkManager/NetworkManager.conf and added the following lines:
[main]
plugins=ifupdown
[ifupdown]
managed=true
The interface comes up at boot, so I can reliably reboot remotely but still have access to the nice NM features!
2 pings
Apache Basic Guide | Umar's Website says:
January 27, 2012 at 01:10 (UTC 0 )
[...] NetworkManager and /etc/network/interfaces | TechAnswers [...]
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January 27, 2012 at 01:51 (UTC 0 )
[...] NetworkManager and /etc/network/interfaces | TechAnswers [...]