Nmap
From DWIKI
Links
HOWTO
List of known port numbers
less /usr/share/nmap/nmap-services
Scan subnet for port
nmap -p 80 192.168.1.0/24
Scan all ports
nmap -p- <host>
Syn scan
nmap -sS <host>
ping IP range
nmap -sP 192.168.11.10-20
OS scan
nmap -O
