Scan your ports with this tool. JPortScanner is a small utility to find vulnerable points in your computer defense. After a Port scan you can eventually close the open ports so that nobody can come in.

JPortScanner Features:
1. Scans for open ports on a IP-Address
2. Shows the IANA reservation of a open port

Requirements:
* Java

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