I have operated linux web server and executed iptables 1.2.8.
and I have found so lots of logs like this ACK,FIN filtering.
Surely, ACK-FIN is a connection closing step, so there is no problem for customers but I would like to know why this happens!!
I guess that the timeout of the connection tracking related.
May 25 12:33:05 www kernel: IN=eth0 OUT= SRC=210.126.xxx.xx DST=211.10.xx.xx LEN=40 TOS=0x00 PREC=0x00 TTL=118 ID=3376 DF PROTO=TCP SPT=3608 DPT=80 WINDOW=63520 RES=0x00 ACK FIN URGP=0
Do you have any problems like me? and what's the problem and how can I solve this problem?
Thanks in advance for your kind opinios!!
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