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Apply tested client configuration 

Adds an additional route, but doesn't enforce it so other apps will remain the same, but smtp can use tunnel for sending. Also sends replies through the tunnel if connection arrives on the tunnel.
Better have something tested and working before I start doing "perfect".

Signed-off-by: Egor Savkin <es@m-labs.hk>
This commit is contained in:
Egor Savkin 2024-09-11 11:04:36 +08:00
parent 4ae7af98b2
commit 5e13fc0bc2
2 changed files with 21 additions and 3 deletions
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23
nixbld-etc-nixos/configuration.nix
View File

@ -248,13 +248,32 @@ in
};
wireguard.interfaces = {
intl0 = {
ips = [ "10.42.0.2/32" ];
ips = [ "10.42.0.2/30" ];
listenPort = 51820;
privateKeyFile = "/path/to/private/key";
privateKeyFile = "/path/to/private/key"; # just `wg-quick genkey > /path/to/private/key`
postUp = ''
${pkgs.iproute2}/bin/ip rule add from all fwmark 1 lookup 51820
${pkgs.iproute2}/bin/ip route add default via 10.42.0.1 dev intl0 table 51820
${pkgs.iptables}/bin/iptables -t mangle -A PREROUTING -i intl0 -p tcp -j MARK --set-mark 1
${pkgs.iptables}/bin/iptables -A OUTPUT -o intl0 -m connmark --mark 1 -j ACCEPT
${pkgs.iptables}/bin/iptables -A INPUT -i intl0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
${pkgs.iptables}/bin/iptables -t mangle -A PREROUTING -m conntrack --ctstate NEW -i intl0 -p tcp -j CONNMARK --save-mark
${pkgs.iptables}/bin/iptables -t mangle -A OUTPUT -m conntrack --ctstate ESTABLISHED,RELATED -j CONNMARK --restore-mark
'';
preDown = ''
${pkgs.iproute2}/bin/ip rule del from all fwmark 1 lookup 51820
${pkgs.iproute2}/bin/ip route del default via 10.42.0.1 dev intl0 table 51820
${pkgs.iptables}/bin/iptables -t mangle -D PREROUTING -i intl0 -p tcp -j MARK --set-mark 1
${pkgs.iptables}/bin/iptables -D OUTPUT -o intl0 -m connmark --mark 1 -j ACCEPT
${pkgs.iptables}/bin/iptables -D INPUT -i intl0 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
${pkgs.iptables}/bin/iptables -t mangle -D PREROUTING -m conntrack --ctstate NEW -i intl0 -p tcp -j CONNMARK --save-mark
${pkgs.iptables}/bin/iptables -t mangle -D OUTPUT -m conntrack --ctstate ESTABLISHED,RELATED -j CONNMARK --restore-mark
'';
peers = [
{
publicKey = "4RozbGZ9ENCjvJXGMB5aK1oqyZfD4UCarEHjSckwVGI=";
allowedIPs = [ "0.0.0.0/0" ];
allowedIPsAsRoutes = false;
endpoint = "5.78.86.156:51820";
persistentKeepalive = 25;
}

1
nixbld-etc-nixos/named/m-labs-intl.com
View File

@ -23,7 +23,6 @@ ns A 94.190.212.123
ns AAAA 2001:470:18:390::2
mail A 5.78.86.156
mail AAAA 2a01:4ff:1f0:83de::1
mail._domainkey IN TXT "v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDJVPuhSGXghO7ib8Em/Se3jfCCIJK5g4zn5pGZ3/e0I0f+zGHMuvwpjkAKf6eSmo/AAXEaco28pDi3qE5xfV512AJsORCfPoPFyNhLsj/qtri6hc5KVSWW0Ja3MSFBINDCaX78c7PXPY+3jJJGpwSBDLjdxj9AQwtfiCVlH4qE/QIDAQAB"
_dmarc TXT "v=DMARC1; p=none"