<4>Apr  8 14:13:38 postgres kernel: [773298.077731] [UFW BLOCK] IN=ens5 OUT= MAC=02:87:d6:fb:4c:36:02:4b:94:bf:cd:44:08:00 SRC=140.201.193.135 DST=75.150.42.82 LEN=60 TOS=0x00 PREC=0x00 TTL=40 ID=6132 DF PROTO=TCP SPT=37379 DPT=5432 WINDOW=35844 RES=0x00 SYN URGP=0 
Product: Uncomplicated Firewall (UFW)
Vendor: linux