<4>Jun 30 17:24:20 hq-ui002 kernel: [83641.250093] [UFW BLOCK] IN=ens5 OUT= MAC=02:0a:06:9e:e1:d2:02:1a:a4:b4:e1:82:08:00 SRC=206.192.99.218 DST=33.227.21.33 LEN=52 TOS=0x00 PREC=0x00 TTL=64 ID=51746 DF PROTO=TCP SPT=9042 DPT=34970 WINDOW=1925 RES=0x00 ACK URGP=0 
This is a syslog message from a product called Uncomplicated Firewall (UFW) by linux. The following fields were extracted from the message:
action: block
clientbytes: 52
clientport: 34970
facilitylabel: kernel
localhostname: hq-ui002
localstarttime: Jun 30 17:24:20
messagetype: firewall_action
priority: 4
program: kernel
protocol: 6
senderhost: 10.1.100.232
sensitivity: normal
serverport: 9042
severitycode: 4
severitylabel: warning
sourceinfo: unknown
tags: ['rfc3164', 'ufw', 'firewall_action']
streamName: ufw
clientIP: 33.227.21.33
serverIP: 206.192.99.218