Probable TCP FIN Scan Dropped keeps showing up in the firewall log
Posted on 2008-01-31
I keep getting this alert in the firewall log but I know who it is from...
Probable TCP FIN scan dropped 18.104.22.168, 443, WAN, owa.mailseat.com
The destination is our IP address. 75.145.xx.xx
We just recently switched to Rackspace for our hosted exchange email so I am concerned that if the firewall is dropping this that it is somehow effecting the performance of our email. Should I change anything in my firewall to somehow allow this to go through or should I just ignore it. Our email seems to be working fine but could it work better if the firewall was not dropping whatever this is????