As a note to self, comes in handy whenever you're missing netcat: #!/usr/bin/perl -w use IO::Socket; use Net::hostent; $...

Another note to self: how to enable IP forwarding in Mac OS X: sudo sysctl -w net.inet.ip.forwarding=1 (credit: Stack Exchange )

Quick note to self on how to disable ASLR (address space layout randomization) in Ubuntu Linux: $ sudo sh -c "echo 0 > /proc/sys/k...

I got this tip from a fellow worker: $ /usr/libexec/java_home -V This command will get you the list of installed Java Virtual Machines inst...

While trying to solve the 4th level of the vortex wargame , I found it was necessary to learn how to inspect the location and content of the...

Use perl for example: $ perl -e 'use Socket; print inet_ntoa(inet_aton("example.com"));'