I am seeing some odd log entries like this:
Apr 10 05:14:09 OutDropped:IN= OUT=eth0 SRC="" DST=66.249.31.43 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=47089 DF PROTO=TCP SPT=37356 DPT=3306 WINDOW=5840 RES=0x00 SYN URGP=0
where xx.xx.xx.xx is the ip of our server, and 66.249.31.43 does not resolve to a hostname but does respond to pings.
I'm wondering how to configure logging to show where these requests are coming from so I can track down what is causing them?