JFirewallTest

JFirewallTest, developed by Michael Gardiner, is a sophisticated free Java webstart application designed to identify vulnerabilities in firewalls by detecting open or improperly secured ports. Specifically categorized under Security and subcategorized as an Antivirus tool, JFirewallTest continues to stand out as a powerful solution, particularly in its latest version 1.0.

The program, which utilizes the file javaws.exe, employs a cutting-edge two-stage testing procedure that meticulously examines all 65,536 ports on your system within minutes—a testament to its rapid port scanning capabilities. Unlike other solutions on the market, JFirewallTest offers a comprehensive page of results post-scan, detailing the status of each port, the associated common services, and their vulnerability estimates.

With compatibility across Windows, Linux, and Mac platforms, JFirewallTest can be conveniently launched directly from the web, making it accessible for diverse user bases. Additionally, the program leverages multi-threading, enhancing its speed and efficiency by parallel processing pending responses.

For those concerned about versioning, it's worth noting that JFirewallTest also had previous versions, such as 0.6. The swift execution, thanks to its groundbreaking two-phase approach, allows a thorough TCP port scan to be accomplished in under 10 minutes. The initial stage logs ports listening for local connections, subsequently sending this list to a WikiWebServer for the second phase, which then scrutinizes the accessibility of these ports from the Internet. More

You may want to check out more software, such as MessageLock, SiteAdvisor for Internet Explorer or SOAtest, which might be related to JFirewallTest.