Re: [User-mode-linux-user] FeedBack on latest kernel

[Erik P. <epa...@up...>]

On Fri, Oct 06, 2000 at 06:12:26PM -0500, Jeff Dike wrote:
> ma...@co... said:
> > Is there any way to setup networking without running UML as root? 
> 
> UML can be running as a normal user, but you do need a suid helper.  With the 
> umn device, just put a suid root ifconfig somewhere in your path.
> 
> With the eth device, you run um_eth_net_util as root if you want access to the 
> host networking.  If you only want to network UMLs, then that doesn't even 
> need to run as root.

This requirement of even having a suid is kind of a bummer - for many
apps simply proxying at the socket level from the UML kernel to the host 
kernel would be completely sufficent - imagine someone running a sandboxed
app, or (when UML gets ported to say FreeBSD) running a Linux app that opens 
a non-priviliged socket up to the network. There doesn't seem to be any 
theoretical reason why that shouldn't be possible.

Many sysadmins (myself included) get very nervous when users ask for a suid
helper.

-Erik

> 
> 				Jeff
> 
> 
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