network manager has gone crazy

[Tony Molloy]

On Tuesday 13 November 2012 05:59:03 Zind wrote:
> On Mon, Nov 12, 2012 at 11:43:54AM +0000, Tony Molloy wrote:
> > On Saturday 10 November 2012 16:05:49 lee wrote:
> >
> > A kludge to fix this is to make resolv.conf immutable. Then
> > NetworkManager or nothing else can interfere with it.
> >
> > Set up /etc/resolv.conf as you want it.
> >
> > Then as root:
> >      chattr -i /etc/resolv.conf
> >
> > Now nothing can change /etc/resolv.conf
> >
> > If you need to edit it later then as root:
> >      chattr +i /etc/resolv.conf
> >
> > A kludge but it works ;-)
> 
> Well, are you sure?
> $man chattr
> A file with the `i' attribute cannot be modified: it cannot be
>  deleted or renamed, no link can be created to this file and no
>  data can be written to the file. Only the superuser or a process
>  possessing the CAP_LINUX_IMMUTABLE capability can set or clear
>  this attribute.
> 
> So,
> chattr +i /etc/resolv.conf, set /etc/resolv.conf immutable
> chattr -i /etc/resolv.conf, set /etc/resolv.conf mutable
> 

You're right, typing before thinking ;-)

chattr +i makes file immutable
chattr -i removes this property.

Tony