Following the FBSD handbook I tried to use ipf on my machine.
This is the output I get when running the ifp command:
$ sudo ipf -Fa -f /etc/ipf.rules
open device: No such file or directory
User/kernel version check failed
I have only one rule in ipf.rules:
block in log on dc0 proto tcp from 188.8.131.52 to 192.168.11.1 port = 25
flags S keep state
It is a test rule to see if it will work.
Why do I get an error? I do have a custom kernel built. Could it be why?
If not, how can I get more debug it in more details?
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