A firewall monitors what comes in and what goes out. It's going to alert you whenever a program on the PC tries to access the internet. Which is a good thing as some "nasties" will try to "phone home" and report on your activities. Having a firewall on an "always on" connection like DSL or cable is essential since some other "nasties" can download themselves without your knowledge. A simple fact is that five years ago you could be infected in fifteen minutes. Today it's fifteen seconds.
You're going to have to live with those alerts. But I don't like that firewall because it asks too many questions and is too hard to configure. The most popular and by far the easiest is the Zone Alarm free firewall. It is one of if not the best available. It will alert you once when your browser and email tries to access the net. You tell it yes and you're done. If another program like Media Player tries to access the net you'll get an alert, you tell it yes and to remember that decision, and you're done. ZA also tells you if any other program tries to access the net but it does it in plain English.
ZA will also alert you when the net tries to access the PC. It will block the attempt unless you requested it like a web page. You can set ZA to alert on incoming attempts or to do it in the background. By all means, set it to not alert you. I have seen hundreds of attempts and that will wear out your clicking finger.
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I just found out about a free personal firewall(Sygate) so I downloaded it. I was told to reboot my computer and when I did I got a box that said this--WIN32 kernel core componant(kernel 32.dll) has received a broadcast packet from the remote machine(10.115.252.1) Do you want to allow this program to access the network? It also gives details of the kernelWin32 core component and the connection it is trying to establish. Could you explain what all this means (core component, remote machine, allow to acess the network)? The only way I could get online was to click yes. After I did that whenever I tried to see a video trailer I kept getting that box with the name of the trailor and asking if I want to let that program(trailor) access the network. I have to click yes to play the trailer. If I click 'no' will that permanantly block me from seeing that trailer. It also happened when I tried to reach outlook express and once again I had to click 'yes' to access it. Does it mean whatever sight I choose on my computer I have to click yes to be able to see that sight? What would have happened if I clicked no? If I click 'don't show me the box again after answering' is there a way or a need to get the box back for a particular websight? I don't quite understand what a firwall is doing but I heard its important especially if you have a DSL or cable connection so I downloaded it. Sorry if my qustion sounds complicated but you know what they say .'Its easy when you know how'.