From ad1320ce807e9a981b5b193394359fc2c2fe5fd0 Mon Sep 17 00:00:00 2001 From: lassulus Date: Wed, 18 Jan 2023 20:03:06 +0100 Subject: l riot: use iptables for port forwarding --- lass/2configs/riot.nix | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/lass/2configs/riot.nix b/lass/2configs/riot.nix index 559e7b20d..6aacec5b6 100644 --- a/lass/2configs/riot.nix +++ b/lass/2configs/riot.nix @@ -31,27 +31,31 @@ privateNetwork = true; hostAddress = "10.233.1.1"; localAddress = "10.233.1.2"; - forwardPorts = [ - { hostPort = 45622; containerPort = 22; } - ]; }; systemd.network.networks."50-ve-riot" = { matchConfig.Name = "ve-riot"; networkConfig = { - IPForward = "yes"; # weirdly we have to use POSTROUTING MASQUERADE here + # and set ip_forward manually + # IPForward = "yes"; # IPMasquerade = "both"; LinkLocalAddressing = "no"; KeepConfiguration = "static"; }; }; - # networking.nat can be used instead of this + boot.kernel.sysctl."net.ipv4.ip_forward" = lib.mkDefault 1; + krebs.iptables.tables.nat.POSTROUTING.rules = [ { v6 = false; predicate = "-s ${config.containers.riot.localAddress}"; target = "MASQUERADE"; } ]; + + # networking.nat can be used instead of this + krebs.iptables.tables.nat.PREROUTING.rules = [ + { predicate = "-p tcp --dport 45622"; target = "DNAT --to-destination ${config.containers.riot.localAddress}:22"; v6 = false; } + ]; krebs.iptables.tables.filter.FORWARD.rules = [ { predicate = "-i ve-riot"; target = "ACCEPT"; } { predicate = "-o ve-riot"; target = "ACCEPT"; } -- cgit v1.2.3