nmap.adoc

   1 [[nmap]]
   2 `nmap` - Port Scans
   3 -------------------
   4
   5 `nmap` is designed to allow system administrators to scan large
   6 networks to determine which hosts are up and what services they are
   7 offering. You can use nmap to test your firewall setting, for example
   8 to see if the required ports are open.
   9
  10 .Test Razor port (tcp port 2703):
  11 ----
  12 # nmap -P0 -sS -p 2703 c301.cloudmark.com
  13
  14 Starting Nmap 5.00 ( http://nmap.org ) at 2012-07-31 11:10 CEST
  15 Interesting ports on c301.cloudmark.com (208.83.137.114):
  16 PORT     STATE SERVICE
  17 2703/tcp open  unknown
  18
  19 Nmap done: 1 IP address (1 host up) scanned in 0.17 seconds
  20 ----
  21
  22 See the manual page (`man nmap`) for more information about nmap.