another cool tool is pf(which i prefer to iptables, but iptables is all we got in linux
) and snort, also dont forget nmap and ettercap(if netcat is "the swiss army knife" of network security then ettercap is a swiss army knife that makes you coffee in the morning, fixes your car and builds your house for you)
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Microsoft, the leader in using innovative tactics to promote irksome experience, coupled with antiquated technology that's held together by a pyramid of makeshift afterthoughts.
Apple, the leader in using irksome tactics to promote innovative experience, coupled with an antiquated core that's enhanced by state-of-the-art afterthoughts.
Linux, the leader in not using any tactics to promote user-defined experience, coupled with state-of-the-art core enhanced by innovative afterthoughts.
