ppp question again.

[Strong]

I want to make ppp-connection under usual user (if it's safe, for now it
is done under root - I'm the only user on this machine) - i think may
this can help me to kill pppd when connection fails and the daemon does
not control the situation...

So, i found in ifup-ppp the following line that generate error 36:
exec /sbin/ppp-watch "${CONFIG##ifcfg-}" "$2"
as I start it simply by typing:
/etc/sysconfig/network-scripts/ifup-ppp /etc/sysconfig/network-scripts/ifcfg-mf_gprs

I checked /sbin/ppp-watch permissions, it is rwxr-xr-x - so ok.
I do not understand what ${CONFIG##ifcfg-} means - I guess it hold the
reason...

So want to ask You, how make it done: to make user able to make
ppp-connection?
Big thanks for Your precious answers.

[Tim]

On Wed, 2005-09-28 at 20:49 +0700, Strong wrote:
> I want to make ppp-connection under usual user (if it's safe, for now
> it is done under root - I'm the only user on this machine)

I hope you're not running *as* root...
> i think may this can help me to kill pppd when connection fails and
> the daemon does not control the situation...
>
> So, i found in ifup-ppp the following line that generate error 36:
> exec /sbin/ppp-watch "${CONFIG##ifcfg-}" "$2"
> as I start it simply by typing:
> /etc/sysconfig/network-scripts/ifup-ppp /etc/sysconfig/network-scripts/ifcfg-mf_gprs

If you want to use command lines to go on- and off-line, do it like
this:

/sbin/ifup ppp0
/sbin/ifup ppp0

Much simpler, and I'm not sure if you're calling scripts that are meant
to be used directly, but those command lines are what I see being used
elsewhere as *a* proper way to take an interface on- or off-line.
> So want to ask You, how make it done: to make user able to make
> ppp-connection?

If you set up via "neat" (that's the program name for a GUI tool for
configuring networks), there's an option to allow any user to bring the
interface on- or off-line.  It sets a USERCTL=yes parameter into the
appropriate network configuration scripts, which I see replicated in at
least three places:

/etc/sysconfig/networking/devices/ifcfg-pp0
/etc/sysconfig/networking/profiles/default/ifcfg-pp0
/etc/sysconfig/network-scripts/ifcfg-pp0

I don't know which are used by what.

On Wed, Sep 28, 2005 at 08:49:56PM +0700, Strong wrote:
> I want to make ppp-connection under usual user (if it's safe, for now it
> is done under root - I'm the only user on this machine) - i think may
> this can help me to kill pppd when connection fails and the daemon does
> not control the situation...
>
> So, i found in ifup-ppp the following line that generate error 36:
> exec /sbin/ppp-watch "${CONFIG##ifcfg-}" "$2"
> as I start it simply by typing:
> /etc/sysconfig/network-scripts/ifup-ppp /etc/sysconfig/network-scripts/ifcfg-mf_gprs
>
> I checked /sbin/ppp-watch permissions, it is rwxr-xr-x - so ok.
> I do not understand what ${CONFIG##ifcfg-} means - I guess it hold the
> reason...
>
> So want to ask You, how make it done: to make user able to make
> ppp-connection?
> Big thanks for Your precious answers.

I don't know how you got to this point but one does not start ppp
communication by executing ifup-ppp directly. If yo use
system-config-network to set up your ppp connection the name of the
connection will , if you fill in the boxes asked for, be assigned an
arbitrary name that is related to the server destination. In my
case it was trinity. The connection is then started by executing:
ifup trinity
and stopped but executing:
ifdown trinity

ifup and ifdown are in /sbin and if they are assigned SUID root anyone
can start or stop the connection. Using modem-lights, a panel
application will make the whole process more transparent.

[Alexander Dalloz]

Am Mi, den 28.09.2005 schrieb Strong um 15:49:
> So, i found in ifup-ppp the following line that generate error 36:
> exec /sbin/ppp-watch "${CONFIG##ifcfg-}" "$2"
> as I start it simply by typing:
> /etc/sysconfig/network-scripts/ifup-ppp /etc/sysconfig/network-scripts/ifcfg-mf_gprs
> I do not understand what ${CONFIG##ifcfg-} means - I guess it hold the
> reason...

man bash -> Parameter Expansion
> Strong.

Alexander