Launch JFirewallTest

JFirewallTest is a free Java webstart application that tests for holes or open ports in your firewall. Unlike other solutions, JFirewallTest is a two stage testing procedure that tests all 65,536 ports very rapidly and will run on Windows, Linux, Mac and other operating systems supporting Java 1.5 or higher.

Application Links

• Java Web Start Application (JFirewallTest.jnlp)
• Standalone Java Application (JFirewallTest.jar)
• Portable Application Description (JFirewallTest.pad.xml)