How Reliable is The GRC - ShielpUP Test

Just wondering how reliable is the Gibson Research - GRC- Shieldup test. Can I get some Opinions on their "Stealth" Test ?


The GRC test claims to gain access to "Windows Messenger" on my Linux system as well !! << { That was my friend's Puter ]

 

Just my opinion,but I trust the Shields Up stealth test results.
It's the first firewall test site that I use.

 

Dont use online test sites. If you have proxy between your machine and the website you will get ports showing up as open etc., even though they are not. Using a tool like nmap.

 

As far as I know ShieldsUp is the fastest, most reliable stealth test scanner on the internet. I have never seen anyone having legit issues with it (not due to proxy, ISP, ect.).

 

I have public IP and GRC's Shields Up is the best online test I know so far.
This test helped me to set up my firewall to open port for bittorent and etc.

 

The test is just very simple.
You may wish to try other comprehensive tests instead:
http://www.spiesonline.net/securitytests.shtml (listing)
http://www.eeye.com/html/resources/downloads/index.html (free testing tools)

Network Security Testing products and companies:

• Axent Technologies' NetRecon
• BindView Corp.'s HackerShield
• eEye Digital Security's Retina
• Internet Security Systems' Internet Scanner
• Network Associates' CyberCop Scanner
• Nessus Security Scanner
• Security Administrator's Research Assistant (SARA)
• World Wide Digital Security's System Analyst Integrated Network Tool (SAINT)
• WebTrends Security Analyzer
• Other lists of security tools

 

[Dont use online test sites. If you have proxy between your machine and the website you will get ports showing up as open etc., even though they are not. Using a tool like nmap.]

I am using a proxy,and my firewall comes back with a pass... So i would say that
you must be wrong.. I use ISPbooster and lavasoft firewall and I have NO problems..

 

No if you're running thru a proxy; the scanner will scan the proxy IP and not your IP address. Check that the IP address displayed is yours --- GRC uses a https connection before the scan to display/determine this -- if you see your address listed you don't have your browser configured properly (ie. it's sending (443) SSL/TLS communications directly).