hosts/oignon/networking/nftables.nix

   1 { pkgs, lib, config, hostName, ... }:
   2 let
   3   inherit (config.users) users;
   4 in
   5 {
   6 networking.firewall.enable = false;
   7 security.lockKernelModules = false;
   8 systemd.services.disable-kernel-module-loading.after = [ "nftables.service" ];
   9 # echo -e "$(nix eval hosts.aubergine.config.networking.nftables.ruleset)"
  10 # nft list ruleset
  11 networking.nftables = {
  12   enable = true;
  13   ruleset = ''
  14     table inet filter {
  15       chain input-intra {
  16         tcp dport { ssh, 2222 } counter accept comment "SSH"
  17         udp dport 60000-61000 counter accept comment "Mosh"
  18       }
  19       chain input-net {
  20       }
  21
  22       chain output-lan {
  23         tcp dport { ssh, 2222 } counter accept comment "SSH"
  24         tcp dport bootps counter accept comment "DHCP"
  25       }
  26       chain output-intra {
  27         tcp dport { ssh, 2222 } counter accept comment "SSH"
  28         udp dport 60001-60010 counter accept comment "Mosh"
  29         tcp dport { http, https } counter accept comment "HTTP"
  30         tcp dport git counter accept comment "Git"
  31       }
  32       chain output-net {
  33         tcp dport { ssh, 2222 } counter accept comment "SSH"
  34         udp dport 60001-60010 counter accept comment "Mosh"
  35         udp dport ntp skuid ${users.systemd-timesync.name} counter accept comment "NTP"
  36         meta l4proto { udp, tcp } skuid dnscrypt-proxy2 counter accept comment "dnscrypt-proxy2"
  37         tcp dport { http, https } counter accept comment "HTTP"
  38         tcp dport git counter accept comment "Git"
  39         tcp dport imaps counter accept comment "IMAPS"
  40         tcp dport xmpp-client counter accept comment "XMPP"
  41         tcp dport nntps counter accept comment "NNTPS"
  42       }
  43     }
  44   '';
  45 };
  46 }