  urlLink There were many things useful. The general stuffs led me to read more HOWTos. just about gnuplot a fine intro on firewalls and a bit details in iptables and ipchains. Then there was in Hyperthreading concepts of Intel P4 w.r.t Kernel 2.6.x and concurrency concepts. ( Just read and need to come back again to logically understand completely) some news and fun! 
