I would like to know how i can manupilate jpeg images and compress it to
jpeg standard after i creqate a new pic from an old one?
David Rysdam wrote:
> Darn! I know I just read something about this YESTERDAY but I can't
> find it.
>
> It seems like you should be able to do it with firewalling rules,
> though...
>
> Mullen, Patrick wrote:
> >
> > I was thinking of writing a program which trapped ping requests,
> > prompted the user (who would have to have superuser privs, of
> > course) if they want to allow pings from the requesting host,
> > and then respond if allowed and add the host to the "allowed
> > hosts" list for future reference.
> >
> > Has this been done before?
> >
> > What is the best way to do this? IINM, ping replies are
> > handled by the kernel. Is there a way to keep the kernel from
> > getting ping requests?
> >
> > What is the best way of forwarding requests along to the normal
> > handler if we decide to let it through?
> >
> > Will this require a kernel change, or can I do this all in userspace?
> >
> > Thanks!
> >
> > ~Patrick
