closing open ports

can a hacker enter my pc through an open port if so then how can i close them
how will know if someone is doing a portscan on my box????

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can a hacker enter my pc through an open port if so then how can i close them
how will know if someone is doing a portscan on my box????

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Yes a hacker can do that, if let's say for example: Outlook runs on port 110 and a hacker find a vulnerability in Outlook he can use that vulne. to gain acces or do damage to your system. A firewall should be able to tell you if you are being scanned or attacked. You also can block specific ports witha firewall or you can disable ports by disabling a service that is using that specific port.

Free Firewalls: http://introonline.com/forums/index....t=ST&f=8&t=16&

also visit these: http://www.antionline.com/showthread...hreadid=227659

and this one: http://www.antionline.com/showthread...hreadid=246294

and this one:) http://www.antionline.com/showthread...hreadid=227999

all found in the Similar Thread List.

does that mean i cannot close or block a port without a software
cant i directly do it within from windows

Ok first of all do netstat (form command prompt either if you are using windows or nix for mac dont know) to see the open ports you have...then in order to close the ports you want just close the services that open them...but you 'd better use one of the links Memory gave you and download a firewall...this way all the ports in your pc will be sort of controlled...none will open without you wanting to none will close without you wanting to....but even at this point you can get hacked..patch reguraly windows and do the usual things (dont download things you dont know,scan your pc for trojans,etc see also tutorial forum)

thanks guys
only port 80 seems to be there after my ip as i connect thorugh the web server