ubuntu Disable UFW BLOCK messages in syslog on Ubuntu ufw a firewall on Ubuntu works great, except for logging too verbose into the syslog. $ less /var/log/syslog Jun 2 00:00:56 legendiary kernel: [147272.918975] [UFW BLOCK] IN=eth0 OUT= MAC=96:00:00:37:5b:55:d2:bc:7f:6e:34:e3:a3:00 SRC=197.