[python] ifconfig not persistent

[feisty01]

hello, I'm newbie in python language and to begin I decided to create a script which take agrs : interface, ip and netmask in order to configure automaticaly networks interfaces.

To push on system I use os.system(str) where 'str' is the string below : ifconfig eth0 192.168.1.101 netmask 255.255.255.0

It works but only few minutes. After 10 minutes, the interface go back to it initial statement AUTO and I don't understand why.
I also try use popen method unfortunately with th same results.

Any ideas? thanks

[Tony Flury]

Possibly due to the fact that os.system creates a new shell which then closes.
Could it be that when the new shell closes the changes revert ?

You might need to find a library to use to make your change.

[DaithiF]

Probably its Network Manager doing its thing and managing the connection for you -- ie. overwriting your manually set config with what it thinks the settings should be. Short of disabling network manager, i'm not sure theres a way to have NM respect what you do at the command line with ifconfig.