A web server, for example, must have port 80 open. Even if a firewall protects all else on the machine, by the necessity of its function in delivering web pages it must have this port unlocked. Maybe ...

nmap -sS -PN -p1-1024 --traceroute --reason -O -sV {My IP} -vv (This is all "don't quote me") -sS is a type of scan where TCP connections are not fully established -PN means skip checking if host is ...

How can you be sure your network is secure? Before you can patch vulnerabilities you need to discover them. You need to think like a cracker might. You need to hack your own system. This is known as ...