Access to /etc/network blocked

[Terence Simpson]

H.M. Gladney wrote:
> Access to the "/etc/network" directory is being denied to a Konqueror
> execution.  In order to test whether this was because some other application
> held exclusive access, I killed all applications except Konqueror, rebooted
> and obtained the same result.
>  
> Subsequent checks in a terminal session revealed: 
>
> >From "ls -l /etc"
> drwxrwxr--  6 root   root      4096 2007-04-16 22:19 network
>
> >From "ls -l /etc/network"
> -rwxrwxrwx 1 root root  230 2007-05-08 07:50 interfaces
>
> What's happening, and what can/should I do now? 
>
> Best wishes, Henry
>
>
>
>
>   

Those permissions don't look right to me, it should be more like:
$ ls -ld /etc/network
drwxr-xr-x 6 root root 4096 2007-04-17 06:19 /etc/network
and
$ ls -l /etc/network/interfaces
-rw-r--r-- 1 root root 239 2007-04-27 04:26 /etc/network/interfaces

So try doing:
$ sudo chmod 755 /etc/network
$ sudo chmod 544 /etc/network/interfaces