Today I did an online security test on the Symantec website. The results
showed that most of my common ports were either open or closed.
I then did the same test on the Shields Up website and the results showed
all my ports to be stealth.
Yesterday while online NAV reported an intrusion attempt on port 1476 by
NMap Xmas Scan, the attempted intrusion was blocked.
I have 3 questions.
Firstly why does the symantec site report the ports status to be different
to the shields up site?
Secondly if my ports are stealth is it possible for a scanner to see my
machine on the internet?
Thirdly is it possible that my linksys router firewall ingnored the scanner
and it was in fact the symantec software that responed thus making me
visable on the internet.

Many thanks....