Hi > What module do i need to modconf for the -m string --string option will > work, so i can drop specific packets on their data. I'm a debian user, but i do not know what modconf is. I never rely on magical software from distros and their packages, simply try the patch-o-matic on your kernel sources, and then make the string match as a module, install it, and use it with iptables. > and why are my traffic control utility so noncompatible, it don't even > have tbf fair quering, i don't understand it. It all worked well under > Mandrake? Again, i don't use magical kernel packages. Maybe tbf in debian is not compiled in. I recommend you downloaded the kernel, configure it (including TBF + whatever you need in QoS section) then, after saving the changes, patching it with netfilter patch-o-matic to get the patches applied to the kernel. and then make it. I always rely on compiling the stuff myself from the sources, and it works. Regards, Maciej Soltysiak