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Originally Posted by IainM Ports are a bit like letter boxes in the front door.
All sorts of stuff needs to be able to come through them ... much of which is legitimate.
Trojans and the like spend their time 'polling' PCs connected to the web, looking for an unprotected port. ( a bit like cold calls from the call centre in timbucktoo ..pick it up and ..)
If they find one ... bingo, they are in and installing all sorts, most of which attempts to use the unprotected port as a way in/out of your PC.
If your Firewall NEVER reports any form of activity ... I'd get a wee bit worried whether or not it was working! At least you know it is when it blocks a port or a trojan etc.
If the firewall blocked the port permanently .. you'd soon not be able to connect to the internet at all!! |
*** Iaian,thanks for this re-assurance,the attacks seem to have slowed down ( fingers crossed !) one interesting thing is that they appeared at certain times of the day,bombarding every half hour or so,I understand now about the ports thing ! sometimes it is the obvious that is the most baffling but I get the idea now.
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