[Firewall] Arnos Firewall nf_conntrack issue

Stuart Foster smf.linux at ntlworld.com
Thu May 11 12:52:33 CEST 2017


I have recently noticed this in my dmesg output, is it important and if 
so what should I do about it ?

[    9.276657] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[ 1224.771797] nf_conntrack: default automatic helper assignment has 
been turned off for security reasons and CT-based  firewall rule not 
found. Use the iptables CT target to attach helpers instead.

I am using:


on linux kernel version 4.9.20 with libc 2.25.


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