From 84098b3e55f40d955e05a16549935de83367a2c1 Mon Sep 17 00:00:00 2001 From: Mark Nipper Date: Tue, 18 Nov 2025 10:05:34 -0800 Subject: Add netns specific resolv.conf @arrakis --- hosts/arrakis/default.nix | 117 ++++++++++++++++++++++++---------------------- 1 file changed, 62 insertions(+), 55 deletions(-) (limited to 'hosts/arrakis/default.nix') diff --git a/hosts/arrakis/default.nix b/hosts/arrakis/default.nix index 93f399b..06dac12 100644 --- a/hosts/arrakis/default.nix +++ b/hosts/arrakis/default.nix @@ -25,62 +25,69 @@ zfs.package = pkgs.zfs_unstable; }; - environment.etc."nftables-vpn.conf".text = '' - # VPN firewall - - flush ruleset - - table inet filter { - chain input { - type filter hook input priority filter; policy drop; - - # established/related connections - ct state established,related accept - - # invalid connections - ct state invalid drop - - # loopback interface - iif lo accept - - # ICMP (routers may also want: mld-listener-query, nd-router-solicit) - #ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-advert, nd-neighbor-solicit, nd-router-advert, packet-too-big, parameter-problem, time-exceeded } accept - ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, parameter-problem, router-advertisement, source-quench, time-exceeded } accept - - # services - iif veth.vpn tcp dport 8080 accept # qBittorrent - iif veth.vpn tcp dport 9696 accept # Prowlarr - iifname wg1 tcp dport { 49152-65535 } accept # Transmission - - # drop everything else - counter drop - } - - chain output { - type filter hook output priority filter; policy drop; - - # explicitly allow my DNS traffic without VPN - skuid nipsy ip daddr 192.168.1.1 tcp dport domain accept - skuid nipsy ip daddr 192.168.1.1 udp dport domain accept - - # explicitly allow my traffic without VPN - oifname veth.vpn skuid nipsy tcp sport 8080 accept # qBittorrent - oifname veth.vpn skuid nipsy tcp sport 9696 accept # Prowlarr - oifname veth.vpn skuid nipsy ip daddr 192.168.1.2 tcp dport { 7878, 8686, 8787, 8989 } accept # Prowlarr to { Radarr, Lidarr, Readarr, Sonarr } - oif lo skuid nipsy ip daddr 192.168.1.3 tcp dport 8080 accept # Prowlarr to qBittorrent - - # allow any traffic out through VPN - oifname wg1 accept - - # drop everything else - counter drop - } + environment.etc = { + "netns/vpn/resolv.conf".text = '' + nameserver 10.64.0.1 + options edns0 + ''; - chain forward { - type filter hook forward priority filter; policy drop; - } - } - ''; + "nftables-vpn.conf".text = '' + # VPN firewall + + flush ruleset + + table inet filter { + chain input { + type filter hook input priority filter; policy drop; + + # established/related connections + ct state established,related accept + + # invalid connections + ct state invalid drop + + # loopback interface + iif lo accept + + # ICMP (routers may also want: mld-listener-query, nd-router-solicit) + #ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-advert, nd-neighbor-solicit, nd-router-advert, packet-too-big, parameter-problem, time-exceeded } accept + ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, parameter-problem, router-advertisement, source-quench, time-exceeded } accept + + # services + iif veth.vpn tcp dport 8080 accept # qBittorrent + iif veth.vpn tcp dport 9696 accept # Prowlarr + iifname wg1 tcp dport { 49152-65535 } accept # Transmission + + # drop everything else + counter drop + } + + chain output { + type filter hook output priority filter; policy drop; + + # explicitly allow my DNS traffic without VPN + skuid nipsy ip daddr 192.168.1.1 tcp dport domain accept + skuid nipsy ip daddr 192.168.1.1 udp dport domain accept + + # explicitly allow my traffic without VPN + oifname veth.vpn skuid nipsy tcp sport 8080 accept # qBittorrent + oifname veth.vpn skuid nipsy tcp sport 9696 accept # Prowlarr + oifname veth.vpn skuid nipsy ip daddr 192.168.1.2 tcp dport { 7878, 8686, 8787, 8989 } accept # Prowlarr to { Radarr, Lidarr, Readarr, Sonarr } + oif lo skuid nipsy ip daddr 192.168.1.3 tcp dport 8080 accept # Prowlarr to qBittorrent + + # allow any traffic out through VPN + oifname wg1 accept + + # drop everything else + counter drop + } + + chain forward { + type filter hook forward priority filter; policy drop; + } + } + ''; + }; environment.systemPackages = [ pkgs.bitcoind -- cgit v1.2.3