The best not-so-well-known tool he mentiions is socat. If you use netcat, socat is like netcat on steroids. It's just a bit hard to remember all the options, bu

The best not-so-well-known tool he mentiions is socat. If you use netcat, socat is like netcat on steroids. It's just a bit hard to remember all the options, but next time there's something crazy you want to do with netcat that it doesn't support, like tunnelling raw packets from a wireless interface on a machine in firewalled corporate network through an SSL tunnel to home machine and dumping those packets locally to a serial port, socat can pretty much do it all.