I have a laptop with XP Home SP2, Zone Alarm 6.5.737 Free, AVG A/V Free, AVG Antispyware Free (no real-time function).
I normally use dial-up at home, and when I do the ShieldsUp!
test, it passes everything 100%. But when I went to use the free wifi at my local library, I ran the test to to compare, and found that it failed certain parts.GRC Port Authority Report created on UTC: 2008-02-06 at 19:49:24
Results from scan of ports: 0, 21-23, 25, 79, 80, 110, 113,
119, 135, 139, 143, 389, 443, 445,
1002, 1024-1030, 1720, 5000
0 Ports Open
0 Ports Closed
26 Ports Stealth
26 Ports Tested
ALL PORTS tested were found to be: STEALTH.
TruStealth: FAILED - ALL tested ports were STEALTH,
- NO unsolicited packets were received,
- A PING REPLY (ICMP Echo) WAS RECEIVED.
Ping Reply: RECEIVED (FAILED) — Your system REPLIED to our Ping (ICMP Echo) requests, making it visible on the Internet. Most personal firewalls can be configured to block, drop, and ignore such ping requests in order to better hide systems from hackers. This is highly recommended since "Ping" is among the oldest and most common methods used to locate systems prior to further exploitation.
And then for the "All Service Ports" test:Solicited TCP Packets: RECEIVED (FAILED) — As detailed in the port report below, one or more of your system's ports actively responded to our deliberate attempts to establish a connection. It is generally possible to increase your system's security by hiding it from the probes of potentially hostile hackers. Please see the details presented by the specific port links below, as well as the various resources on this site, and in our extremely helpful and active user community.
In the listing of all the ports, all were "green" (slealthed) except for Port 1 which was "blue" (closed). 1.
What does this all mean?2.
Why is this the case with free wifi, but not with my dial-up at home?3.
Is there anything I need to or should do to better secure my laptop before using the free wifi? It says, "Most personal firewalls can be configured to block, drop, and ignore such ping requests in order to better hide systems from hackers." How can I do that when I use the free wifi?
Any help is appreciated -- thanks!
My stats: Windows XP Home SP2; Firefox 3.0.14 w/ Ad-Block Plus; IE 6.0 (used only for monthly Windows Critical Updates); ZoneAlarm 6.1.744.001 Free; AVG 8.5 A/V Free; SuperAntispyware Free 4.28.1010