CloseTheDoor indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files. This will help you to detect security holes and close backdoors when you want to prevent remote attacks.

CloseTheDoor Features:
1. Enumerate all listening ports for IPv4/IPv6
2. Gather information about the listening ports
3. Ability to disable potentially dangerous ports

The license of this software is Free, you can free download and free use this firewall software.