the ports of Firewall or security software to allow sharing
How can I determine which ports are
Microsoft Applications' Ports and Protocols
Popular Port #
How can I determine which
ports are active
Symptom: you have a server providing HTTP and FTP to the
Internet users and the users are able to access the HTTP but not FTP.
Resolution: Run netstat -a command that will shows all
VPN: uses TCP Port 1723, IP
Protocol 47 (GRE); L2TP: UDP Port 1701; IPSec: UDP 500, Pass protocol 50 and 51.
Terminal Services: uses TCP port 3389 for client