What is a FIN port scan.
 

What is a FIN port scan, & Who's likley to be doing one on me.
Its directed at Limewire and show's up on average about 5/6 times
in one day.

Never heard of a FIN port scan. But I would recommend getting Peerguardian (FREE)

Perhaps a quick read thru this: Organisations trying to connect via Port 6346

You can also read here:
http://netsecurity.about.com/cs/hack...a/aa121303.htm
;)

Or this here:
FIN scan

The typical TCP scan attempts to open connections (at least part way). Another technique sends erroneous packets at a port, expecting that open listening ports will send back different error messages than closed ports. The scanner sends a FIN packet, which should close a connection that is open. Closed ports reply to a FIN packet with a RST. Open ports, on the other hand, ignore the packet in question. This is required TCP behavior. If no service is listening at the target port, the operating system will generate an error message. If a service is listening, the operating system will silently drop the incoming packet. Therefore, silence indicates the presence of a service at the port. However, since packets can be dropped accidentally on the wire or blocked by firewalls, this isn't a very effective scan.

Other techniques that have been used consist of XMAS scans where all flags in the TCP packet are set, or NULL scans where none of the bits are set. However, different operating systems respond differently to these scans, and it becomes important to identify the OS and even its version and patch level.
:-)

LotR
Cheers my friend, I already have PeerGaurdian, Great program + The banned
lists from PeerGaurdian transfers straight into my Webroot F/W, so if ither one
goes down or is attact, I have backup. this seems to work well for me, Oh!
Norton A/V auto protect runs along side no apparent conflict, 1 month so far
The FIN port scans are blocked,by Webroot F/W just like to know whats sniffing at my ports and why. I also rotate my Lime port 3 times a week,dose this help to stop them fixing posision on me,or am i dreaming.
You do a great job man.
Later.

Foolofthehill
Wow! Overload, what a lot of info.
Well I asked for it, that Link was mind blowing and more.
Just give me a week to studdy it.
Thanks my friend.

The box of Pandora.......anyways, you're welcome....:D