Question

What does Netfilter with the result of the modules called on hook?

Posted November 2, 2020 43 views
Firewall

Link of the tutorial (suggest me a better name): https://www.digitalocean.com/community/tutorials/a-deep-dive-into-iptables-and-netfilter-architecture

Thank you for the presentation of the nitty-gritty of iptables & netfilter.
I would like to know how netfilter handle the result of the hooked modules.

As you explain, every module return an a decision to netfilter. As netfilter call all modules in turn, how it makes the final decision?

Thank.

Submit an answer

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!