networking.firewall.backend

NixOS option

Underlying implementation for the firewall service.

type: one of "iptables", "nftables", "firewalld"
Default
if config.services.firewalld.enable then
  "firewalld"
else if config.networking.nftables.enable then
  "nftables"
else
  "iptables"
declared in: nixos/modules/services/networking/firewall.nixView source on NixOS/nixpkgs →