Hi,
this is a "BTW" appendix to my last mail :-)

I consider it somewhat confusing that there is only one firewall icon in 
the corner. Since TCP and UDP firewalling is completely independent, 
and since each of them has at least three possible states used in 
practice ("completely closed", "Only outgoing/solicited allowed",
"both outgoing and incoming/unsolicited allowed"), which thus equals to 
at least nine possible combinations, it seems unlikely that we can 
express so much information with only four different icon states. In 
theory, there are even more possible states for each TCP and UDP which 
are quite rarely used in practice (for example "ONLY 
incoming/unsolicited traffic allowed", used in firewalls protecting 
internet servers, so that an infected server can't spread a virus).

Haxe


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