15. Some interesting links

  1. iptables-1.2.6 by Paul Russell.

  2. Linux netfilter Hacking HOWTO by Paul Russell.

  3. iproute2 by Alexey Kuznetsov.

  4. Advance routing Linux HOWTO.

  5. HTB queueing discipline implementation by Martin Devera.

  6. Linux-Advance Networking Overview by Saravanan Radhakrishnan.

  7. monitor.pl by Stef Coene.

  8. netcat by Hobbit.