On 09.03.2022 18:19, Eric Garver wrote:
>
> Log shows e.g. this:
> Mar 8 21:56:40 fook kernel: [23772.652824] "filter_IN_knet_REJECT:
"IN=enp2s0 OUT= MAC=<MAC> SRC=5.9.164.112 DST=192.168.1.1 LEN=40 TOS=0x00
PREC=0x00 TTL=53 ID=0 DF PROTO=TCP SPT=853 DPT=55166 WINDOW=0 RES=0x00 RST URGP=0
This log indicates the kernel thinks this TCP RST is not part of an
existing connection. I don't know why.
As the local address is private, there must be some NAT going on. If
external address is dynamic, this could have been addressed to previous
owner. One needs to see the whole picture in this case.