PORTS AND SCAN TO SMB
YOU NEED TO TEST YOUR PORTS WHEN WORKING WITH WINDOWS SERVERS…
IF ALL YOUR SETTINGS ARE CORRECT FOR SCANNING THEN ITS POSSIBLE THAT YOU HAVE PORT TROUBLES…
TESTING PORTS WITH TELNET
TESTING PORTS WITH COMMAND PROMPT
The SMB (Server Message Block) protocol is used among other things for file sharing in Windows NT/2000/XP. In Windows NT it ran on top of NetBT (NetBIOS over TCP/IP), which used the famous ports 137, 138 (UDP) and 139 (TCP). In Windows 2000/XP/2003, Microsoft added the possibility to run SMB directly over TCP/IP, without the extra layer of NetBT. For this they use TCP port 445.
