How can I disable the logging of iptables to the console?

To permanently disable all low level kernel messages (iptables etc) from flooding the console do the following changes (as root):

Edit the file /etc/sysctl.conf Add the following line:

kernel.printk = 4 1 1 7

The above changes will be effective at reboot or immediately using the following command:

/sbin/sysctl -p /etc/sysctl.conf

To make the changes only temporarily:

echo "4 1 1 7" > /proc/sys/kernel/printk

You can check the current setting with:

cat /proc/sys/kernel/printk
  • firewall, logging, console, iptables
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