<4>Sep 12 22:10:14 hq-postgres kernel: [1137646.330948] [UFW BLOCK] IN=ens5 OUT= MAC=02:da:4a:4d:f8:d0:02:4b:94:bf:cd:44:08:00 SRC=144.186.31.220 DST=227.122.137.198 LEN=52 TOS=0x00 PREC=0x00 TTL=254 ID=17937 DF PROTO=TCP SPT=2049 DPT=743 WINDOW=1502 RES=0x00 ACK URGP=0 
Product: Uncomplicated Firewall (UFW)
Vendor: linux