Linux iptables TRIGGER target description [closed]

Question

I'm writing application which controls Linux firewall (using iptables). I need to implement some port triggering. There is TRIGGER target which seems to be suitable for it. However, I can't find good documentation of it (actually it's really hard to find any documentation of this target). Does anybody can redirect me to any information about TRIGGER target of iptables?

Answer 1

This is the official documentation for iptables. I wasn't able to find a clear-cut answer directly, but since you didn't mention having looked there, I thought it worthwhile to include.