NIC goes down upon Gnome logout

[Ryan Jacobs]

Hi Lee,

Thanks for the response. Actually we are not using any GUI utility. 
Currently, we have 2 NICs that are bridged together (one side to ADSL 
modem, other side to internal net). We monitor the traffic through this 
bridge with ntop (in South Africa, ADSL bandwidth usage if often capped, 
so we have to watch things closely). Later we could apply firewall rules 
across these NICs, but currently we have none defined, and no actual 
firewall-specific software.

What is strange is that this bridge structure was installed after 
upgrading to Hoary, and furthermore, we experienced the exact same 
problem when there was only 1 NIC (and no bridge, etc...). The only link 
I can make is that something changed when upgrading to Hoary, otherwise 
I am at a loss.....

Does anyone have any other insight into what processes actually happen 
upon interface login/logout? If runlevels were changed I would start 
troubleshooting the "kill" statements in the appropriate rcx.d, for 
example... but I don't have any such leads. Perhaps, like Lee said, 
there is something starting upon login to Gnome that effects the network 
upon logout (like a firewall), but I don't know of such a thing at the 
moment...

Thanks,
Ryan

Lee Braiden wrote:

>On Monday 05 September 2005 11:37, Ryan Jacobs wrote:
>  
>
>>If I login as an admin user directly to the local Gnome interface, and
>>later logout back to the default graphical welcome/login screen, one of
>>the servers NICs dies (upon logout). "Dies" is the only term I can think
>>of because logging back in and checking the status shows that it's
>>enabled, and an ifconfig shows that its retained it's setting and is
>>active. However, pinging anything through this NIC (from outside to the
>>server, or from the server outside) simply fails. The only way to get it
>>working again is a reboot.
>>    
>>
>
>Are you running (or have you previously used) a GUI-based firewall utility?  
>Sounds like the firewall is blocking everything on logout.
>
>  
>