Document strongswan setup

Signed-off-by: Egor Savkin <es@m-labs.hk>

m-labs-intl/60-tunnels.yaml

@@ -0,0 +1,18 @@
+network:
+   version: 2
+   renderer: networkd
+   ethernets:
+     eth0:
+       addresses:
+       - 5.78.86.156/32
+       - 2a01:4ff:1f0:83de::2/64
+       - 2a01:4ff:1f0:83de::3/64
+       - 2a01:4ff:1f0:83de::4/64
+   tunnels:
+     gre1:
+       mode: gre
+       local: 5.78.86.156
+       remote: 94.190.212.123
+       addresses:
+        - 10.47.3.0/31
+

m-labs-intl/gretun.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=GRE tunnel to the main host
+After=network.target
+
+[Service]
+Type=simple
+User=root
+ExecStart=/root/gretun.sh
+ExecStop=/root/gretun_down.sh
+Restart=on-failure
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target

m-labs-intl/gretun.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+/usr/sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 25 -j DNAT --to-destination 10.47.3.1:25
+/usr/sbin/iptables -A FORWARD -p tcp -d 10.47.3.1/31 --dport 25 -j ACCEPT
+
+/usr/sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 587 -j DNAT --to-destination 10.47.3.1:587
+/usr/sbin/iptables -A FORWARD -p tcp -d 10.47.3.1/31 --dport 587 -j ACCEPT
+
+/usr/sbin/iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
+/usr/sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
+/usr/sbin/ufw route allow in on gre1 out on eth0
+

m-labs-intl/gretun_down.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+
+/usr/sbin/iptables -t nat -D PREROUTING -p tcp -i eth0 --dport 25 -j DNAT --to-destination 10.47.3.1:25
+/usr/sbin/iptables -D FORWARD -p tcp -d 10.47.3.1/31 --dport 25 -j ACCEPT
+
+/usr/sbin/iptables -t nat -D PREROUTING -p tcp -i eth0 --dport 587 -j DNAT --to-destination 10.47.3.1:587
+/usr/sbin/iptables -D FORWARD -p tcp -d 10.47.3.1/31 --dport 587 -j ACCEPT
+
+/usr/sbin/iptables -D FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
+/usr/sbin/iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
+/usr/sbin/ufw delete route allow in on gre1 out on eth0

m-labs-intl/m-labs-intl.com

@@ -0,0 +1,81 @@
+upstream rfq_server {
+    server 127.0.0.1:5000;
+}
+
+server {
+    limit_conn addr 5;
+
+    root /var/www/m-labs-intl.com/html;
+    index index.html index.htm index.nginx-debian.html;
+
+    server_name m-labs-intl.com;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    listen [::]:443 ssl ipv6only=on; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    server_name www.m-labs-intl.com;
+    return 301 https://m-labs-intl.com$request_uri;
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    server_name hooks.m-labs-intl.com;
+    limit_conn addr 5;
+
+    location /rfq {
+        proxy_pass http://rfq_server/rfq;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_read_timeout 30;
+        proxy_connect_timeout 30;
+        proxy_send_timeout 30;
+    }
+
+    location / {
+        return 418;
+    }
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+    ssl_certificate /etc/letsencrypt/live/m-labs-intl.com/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/m-labs-intl.com/privkey.pem; # managed by Certbot
+    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
+    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
+}
+
+server {
+    limit_conn addr 5;
+    if ($host = m-labs-intl.com) {
+        return 301 https://$host$request_uri;
+    } # managed by Certbot
+
+
+    if ($host = www.m-labs-intl.com) {
+        return 301 https://m-labs-intl.com$request_uri;
+    } # managed by Certbot
+
+
+    listen 80;
+    listen [::]:80;
+
+    server_name m-labs-intl.com www.m-labs-intl.com hooks.m-labs-intl.com;
+    return 301 https://$host$request_uri;
+}

m-labs-intl/m-labs.hk.conf

@@ -0,0 +1,34 @@
+
+
+connections {
+  m_labs {
+    version = 2
+    encap = no
+    mobike = no
+    send_certreq = no
+    proposals = aes128gcm128-sha256-prfsha256-curve25519,aes128gcm128-sha256-prfsha256-ecp256
+    local_addrs = 5.78.86.156
+    remote_addrs = 94.190.212.123
+    local {
+      auth = pubkey
+      id = fqdn:m-labs-intl.com
+      pubkeys = m-labs-intl.com
+    }
+    remote {
+      auth = pubkey
+      id = fqdn:m-labs.hk
+      pubkeys = m-labs.hk
+    }
+    children {
+      con1 {
+        mode = transport
+        ah_proposals = sha256-curve25519,sha256-ecp256
+        esp_proposals =
+        local_ts = 5.78.86.156[gre]
+        remote_ts = 94.190.212.123[gre]
+        start_action = start
+        close_action = none
+      }
+    }
+  } 
+}

m-labs-intl/nginx.conf

@@ -0,0 +1,65 @@
+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+error_log /var/log/nginx/error.log;
+include /etc/nginx/modules-enabled/*.conf;
+
+events {
+	worker_connections 768;
+	# multi_accept on;
+}
+
+http {
+
+	##
+	# Basic Settings
+	##
+
+	sendfile on;
+	tcp_nopush on;
+	types_hash_max_size 2048;
+	# server_tokens off;
+
+	server_names_hash_bucket_size 64;
+	# server_name_in_redirect off;
+
+	include /etc/nginx/mime.types;
+	default_type application/octet-stream;
+
+	##
+	# SSL Settings
+	##
+
+	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
+	ssl_prefer_server_ciphers on;
+
+	# Rate limiting
+	limit_conn_zone $binary_remote_addr zone=addr:10m;
+
+	##
+	# Logging Settings
+	##
+
+	access_log /var/log/nginx/access.log;
+
+	##
+	# Gzip Settings
+	##
+
+	gzip on;
+
+	# gzip_vary on;
+	# gzip_proxied any;
+	# gzip_comp_level 6;
+	# gzip_buffers 16 8k;
+	# gzip_http_version 1.1;
+	gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
+
+	##
+	# Virtual Host Configs
+	##
+
+	include /etc/nginx/conf.d/*.conf;
+	include /etc/nginx/sites-enabled/*;
+}
+

m-labs-intl/rfq.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=RFQ service
+After=network.target
+
+[Service]
+Type=simple
+User=rfqserver
+ExecStart=/home/rfqserver/runrfq.sh
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target

m-labs-intl/runrfq.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+export FLASK_DEBUG=0
+export FLASK_MAIL_SERVER=mail.m-labs.hk
+export FLASK_MAIL_PORT=465
+export FLASK_MAIL_USE_SSL=True
+export FLASK_MAIL_USERNAME=sysop-intl@m-labs-intl.com
+export FLASK_MAIL_PASSWORD_FILE=/home/rfqserver/mail.secret
+export FLASK_MAIL_RECIPIENT=sales@m-labs.hk
+export FLASK_MAIL_SENDER=sysop-intl@m-labs-intl.com
+
+cd /home/rfqserver/web2019/server
+source venv/bin/activate
+python3 -m flask --app rfq run --port=5000

m-labs-intl/setup.md

@@ -0,0 +1,99 @@
+# Setup m-labs-intl.com server
+
+```shell
+# Install required packages
+apt install git nginx-full python3 python3.12-venv python3-pip iptables ufw \
+  strongswan strongswan-swanctl strongswan-pki strongswan-libcharon
+snap install --classic certbot
+ln -s /snap/bin/certbot /usr/bin/certbot
+
+# Set up networks (includes GRE)
+cp 60-tunnels.yaml /etc/netplan/
+netplan apply
+
+# set up IPsec-AH connection
+cp m-labs.hk.conf /etc/swanctl/conf.d/
+echo 'net.ipv4.ip_forward=1' >> /etc/sysctl.conf
+sysctl -p
+cp m-labs.hk /etc/swanctl/pubkey/m-labs.hk # get pubkey from nixbld
+pki --gen --type rsa --size 4096 --outform pem > /etc/swanctl/private/m-labs-intl.com
+pki --pub --in /etc/swanctl/private/m-labs-intl.com --outform pem > /etc/swanctl/pubkey/m-labs-intl.com
+cp /etc/swanctl/pubkey/m-labs-intl.com m-labs-intl.com # add it to the nixbld
+systemctl enable strongswan --now
+systemctl restart strongswan
+
+# Set up website
+cp m-labs-intl.com /etc/nginx/sites-available/
+cp nginx.conf /etc/nginx/
+ln -s /etc/nginx/sites-available/m-labs-intl.com /etc/nginx/sites-enabled/
+systemctl enable nginx --now
+service nginx restart
+
+# Issue SSL certificate - website only, the mail is on the HK side
+certbot --nginx
+service nginx restart
+
+# Create a user for automatic website deployment from nixbld
+useradd -m zolaupd
+mkdir -p /var/www/m-labs-intl.com/html
+chown -R zolaupd /var/www/m-labs-intl.com/
+sudo -u zolaupd sh -c '
+  cd /home/zolaupd;
+  mkdir /home/zolaupd/.ssh;
+  echo -n "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIP1OJJM8g/1ffxDjN31XKEfGmrYaW03lwpyTa1UGWqVx
+  ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF6R6XK0IiuAKxVKvSABm4m9bfOlvfJcMvTpjenuXUPv" > /home/zolaupd/.ssh/authorized_keys
+  chmod 700 .ssh/
+  chmod 600 .ssh/authorized_keys
+  '
+
+# Create a user for RFQ hooks service
+useradd -m rfqserver
+cp runrfq.sh /home/rfqserver/
+cp mail.secret /home/rfqserver/
+chown rfqserver /home/rfqserver/runrfq.sh
+chmod +x /home/rfqserver/runrfq.sh
+chown rfqserver /home/rfqserver/mail.secret
+
+sudo -u rfqserver sh -c '
+  cd /home/rfqserver;
+  git clone https://git.m-labs.hk/M-Labs/web2019.git;
+  cd web2019;
+  python3 -m venv ./venv;
+  source venv/bin/activate;
+  pip install -r requirements.txt;
+'
+cp rfq.service /etc/systemd/system/
+
+# Automate port forwarding rules creation
+cp gretun.sh /root/gretun.sh
+cp gretun_down.sh /root/gretun_down.sh
+chmod u+x /root/gretun.sh
+chmod u+x /root/gretun_down.sh
+cp gretun.service /etc/systemd/system/
+
+# Enable custom services
+systemctl daemon-reload
+systemctl enable rfq.service --now
+systemctl enable gretun.service --now
+
+# Setup basic firewall rules  
+ufw default deny
+ufw default allow outgoing
+
+ufw allow from 94.190.212.123
+ufw allow from 2001:470:f891:1::/64
+ufw allow from 202.77.7.238
+ufw allow from 2001:470:18:390::2
+ufw allow "Nginx HTTP"
+ufw allow "Nginx HTTPS"
+ufw limit OpenSSH
+ufw allow 25/tcp
+ufw allow 587/tcp
+ufw limit 500,4500/udp
+
+ufw route allow in on gre1 out on eth0
+ufw allow from 10.47.3.0/31
+
+ufw show added
+ufw enable
+```

nixbld-etc-nixos/configuration.nix

@@ -6,6 +6,9 @@ let
   netifLan = "enp5s0f1";
   netifWifi = "wlp6s0";
   netifSit = "henet0";
+  netifUSA = "trump0";
+  netifAlt = "alt0";
+  netifAltVlan = "vlan0";
   hydraWwwOutputs = "/var/www/hydra-outputs";
 in
 {
@@ -17,8 +20,8 @@ in
       ./afws-module.nix
       ./rt.nix
       (builtins.fetchTarball {
-        url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/41059fc548088e49e3ddb3a2b4faeb5de018e60f/nixos-mailserver-nixos.tar.gz";
-        sha256 = "sha256:0xvch92yi4mc1acj08461wrgrva63770aiis02vpvaa7a1xqaibv";
+        url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/29916981e7b3b5782dc5085ad18490113f8ff63b/nixos-mailserver-nixos.tar.gz";
+        sha256 = "sha256:0clvw4622mqzk1aqw1qn6shl9pai097q62mq1ibzscnjayhp278b";
       })
     ];
 
@@ -90,6 +93,15 @@ in
       allowedTCPPorts = [ 53 80 443 2222 7402 ];
       allowedUDPPorts = [ 53 67 500 4500 ];
       trustedInterfaces = [ netifLan ];
+      logRefusedConnections = false;
+      extraCommands = ''
+        iptables -A INPUT -s 5.78.86.156 -p gre -j ACCEPT
+        iptables -A INPUT -s 5.78.86.156 -p ah -j ACCEPT
+      '';
+      extraStopCommands = ''
+        iptables -D INPUT -s 5.78.86.156 -p gre -j ACCEPT
+        iptables -D INPUT -s 5.78.86.156 -p ah -j ACCEPT
+      '';
     };
     useDHCP = false;
     interfaces."${netifWan}".useDHCP = true;  # PCCW - always wants active DHCP lease or cuts you off
@@ -176,11 +188,21 @@ in
         iptables -w -A block-insecure-devices -m mac --mac-source d8:9c:67:ab:83:e7 -j DROP  # HP printer, wifi
         iptables -w -A block-insecure-devices -m mac --mac-source f4:39:09:f7:3c:d7 -j DROP  # HP printer, ethernet
         iptables -w -A FORWARD -j block-insecure-devices
+
+        iptables -w -N pccw-sucks
+        iptables -A pccw-sucks -o ${netifSit} -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1440
+        iptables -A pccw-sucks -o ${netifAlt} -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1380
+        iptables -A pccw-sucks -o ${netifUSA} -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --set-mss 1380
+        iptables -w -A FORWARD -j pccw-sucks
       '';
       extraStopCommands = ''
         iptables -w -D FORWARD -j block-insecure-devices 2>/dev/null|| true
         iptables -w -F block-insecure-devices 2>/dev/null|| true
         iptables -w -X block-insecure-devices 2>/dev/null|| true
+
+        iptables -w -D FORWARD -j pccw-sucks 2>/dev/null|| true
+        iptables -w -F pccw-sucks 2>/dev/null|| true
+        iptables -w -X pccw-sucks 2>/dev/null|| true
       '';
     };
     sits."${netifSit}" = {
@@ -193,14 +215,37 @@ in
       addresses = [{ address = "2001:470:18:390::2"; prefixLength = 64; }];
       routes = [{ address = "::"; prefixLength = 0; }];
     };
-    greTunnels.alt0 = {
+    greTunnels."${netifUSA}" = {
+      dev = netifWan;
+      remote = "5.78.86.156";
+      local = "94.190.212.123";
+      ttl = 255;
+      type = "tun";
+    };
+    greTunnels."${netifAlt}" = {
       dev = netifWan;
       remote = "103.206.98.1";
       local = "94.190.212.123";
       ttl = 255;
       type = "tun";
     };
-    interfaces.alt0 = {
+    interfaces."${netifUSA}" = {
+      ipv4.addresses = [
+        {
+          address = "10.47.3.1";
+          prefixLength = 31;
+        }
+      ];
+      ipv4.routes = [
+        {
+          address = "0.0.0.0";
+          prefixLength = 0;
+          via = "10.47.3.0";
+          options.table = "3";
+        }
+      ];
+    };
+    interfaces."${netifAlt}" = {
       ipv4.addresses = [
         {
           address = "103.206.98.227";
@@ -217,12 +262,12 @@ in
       ];
     };
     vlans = {
-      vlan0 = {
+      "${netifAltVlan}" = {
         id = 2;
         interface = netifLan;
       };
     };
-    interfaces.vlan0 = {
+    interfaces."${netifAltVlan}" = {
       ipv4.addresses = [{
         address = "103.206.98.200";
         prefixLength = 29;
@@ -255,7 +300,7 @@ in
       id = "fqdn:igw0.hkg.as150788.net";
       pubkeys = [ "/etc/swanctl/pubkey/igw0.hkg.as150788.net" ];
     };
-    children.alt0 = {
+    children."${netifAlt}" = {
       mode = "transport";
       ah_proposals = [ "sha256-curve25519" ];
       remote_ts = [ "103.206.98.1[gre]" ];
@@ -263,6 +308,27 @@ in
       start_action = "start";
     };
   };
+  services.strongswan-swanctl.swanctl.connections.usa = {
+    local_addrs = [ "94.190.212.123" ];
+    remote_addrs = [ "5.78.86.156" ];
+    local.main = {
+      auth = "pubkey";
+      id = "fqdn:m-labs.hk";
+      pubkeys = [ "/etc/swanctl/pubkey/m-labs.hk" ];
+    };
+    remote.main = {
+      auth = "pubkey";
+      id = "fqdn:m-labs-intl.com";
+      pubkeys = [ "/etc/swanctl/pubkey/m-labs-intl.com" ];
+    };
+    children."${netifUSA}" = {
+      mode = "transport";
+      ah_proposals = [ "sha256-curve25519" ];
+      remote_ts = [ "5.78.86.156[gre]" ];
+      local_ts = [ "94.190.212.123[gre]" ];
+      start_action = "start";
+    };
+  };
 
   systemd.services.network-custom-route-backup = {
     wantedBy = [ "network.target" ];
@@ -273,6 +339,15 @@ in
       ExecStop = "${pkgs.iproute2}/bin/ip rule del table 2";
     };
   };
+  systemd.services.network-custom-route-usa = {
+    wantedBy = [ "network.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+      ExecStart = "${pkgs.iproute2}/bin/ip rule add from 10.47.3.0/31 table 3";
+      ExecStop = "${pkgs.iproute2}/bin/ip rule del table 3";
+    };
+  };
   systemd.services.network-custom-route-alt = {
     wantedBy = [ "network.target" ];
     serviceConfig = {
@@ -465,11 +540,6 @@ in
         "/kasli/192.168.1.70"
         "/kasli-customer/192.168.1.75"
         "/stabilizer-customer/192.168.1.76"
-
-        # Google can't do DNS geolocation correctly and slows down websites of everyone using
-        # their shitty font cloud hosting. In HK, you sometimes get IPs behind the GFW that you
-        # cannot reach.
-        "/fonts.googleapis.com/142.250.207.74"
       ];
 
       dhcp-match = "set:ipxe,175"; # https://forum.ipxe.org/showthread.php?tid=6077
@@ -495,10 +565,23 @@ in
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [
-    wget vim git file lm_sensors acpi pciutils psmisc nixops_unstable_minimal
-    irssi tmux usbutils imagemagick jq zip unzip
+    lm_sensors
+    acpi
+    usbutils
+    pciutils
     iw
     nvme-cli
+    smartmontools
+    psmisc
+
+    wget
+    vim
+    git
+    file
+    imagemagick
+    jq
+
+    nixops_unstable_minimal
     borgbackup
     bind
     waypipe
@@ -528,6 +611,7 @@ in
   services.openssh.settings.X11Forwarding = true;
   services.openssh.authorizedKeysInHomedir = false;
   programs.mosh.enable = true;
+  programs.tmux.enable = true;
 
   programs.fish.enable = true;
   programs.zsh.enable = true;
@@ -578,6 +662,7 @@ in
   # https://github.com/NixOS/nixpkgs/issues/155357
   security.sudo.enable = true;
 
+  # M-Labs HK
   users.extraUsers.sb = {
     isNormalUser = true;
     extraGroups = ["lp" "scanner" "afws" "audio"];
@@ -587,22 +672,6 @@ in
     ];
     shell = pkgs.fish;
   };
-  users.extraUsers.rj = {
-    isNormalUser = true;
-    extraGroups = ["afws"];
-    openssh.authorizedKeys.keys = [
-      "ssh-rsa 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 robert-jordens-rsa4096"
-     "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCUdbne3NtIG+iy/jer76/OY+IksuS3BDLSXPnWrGejWnig9h+L6sUV0lEVI6dqp+W/b8jWqPB8nh5S0NZsCd3Ta3Go82k/SPPkh9lB2PpfquhCjLnmC/RNc3TgC4FuiS+NZHqXaTggYHubNwEK+8gynMqkMQXjOGU02U0CtUfsYdAm75AW60DySZCRNwOcU0Ndpn1UCpha7fL1k179Dd/OtArkYsIL24ohlfxFeOB3jGYQK6ATmzbvCRjwIKXcyECuajWwfnDg9FtDWrqHNzu5dJlvmxoWm8zCDgMj53uiA7TjujQN81MYrIJNeEwSr5jXQMqzA3mzlk4k3Z0qs3TP robert-jordens-64FEFBAF-4D0749B2-rsa2048"
-     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMUaB2G1jexxfkdlly3fdWslH54/s/bOuvk9AxqpjtAY robert-jordens-ed25519"
-    ];
-  };
-  users.extraUsers.nkrackow = {
-    isNormalUser = true;
-    extraGroups = ["afws"];
-    openssh.authorizedKeys.keys = [
-      "ssh-rsa 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"
-    ];
-  };
   users.extraUsers.spaqin = {
     isNormalUser = true;
     extraGroups = ["lp" "afws"];
@@ -624,6 +693,8 @@ in
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBDXMbJEPn0mM2Bgt6eMAd+c0J5oPSvquZG+BxKdUf0qbeQldRaoB26NHMZnLte/fS00U/cqStLWDiwtEvH5WlbbawsMBymm65zbWMByebXhBDjdr6a1kkOFcKJvAL9qVBQ=="
     ];
   };
+
+  # M-Labs PH
   users.extraUsers.flo = {
     isNormalUser = true;
     extraGroups = ["afws"];
@@ -631,6 +702,26 @@ in
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBF4ZYNBYqJPQCKBYjMatFj5eGMyzh/X2TSraJEG6XBdg3jnJ3WcsOd7sm+vx+o9Y1EJ2kvwW/Vy9c3OYVU2U45njox//sKtt8Eyzszws3EYJqHQ6KAwXtW9ao4aamRtK3Q=="
     ];
   };
+
+  # QUARTIQ
+  users.extraUsers.rj = {
+    isNormalUser = true;
+    extraGroups = ["afws"];
+    openssh.authorizedKeys.keys = [
+      "ssh-rsa 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 robert-jordens-rsa4096"
+     "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCUdbne3NtIG+iy/jer76/OY+IksuS3BDLSXPnWrGejWnig9h+L6sUV0lEVI6dqp+W/b8jWqPB8nh5S0NZsCd3Ta3Go82k/SPPkh9lB2PpfquhCjLnmC/RNc3TgC4FuiS+NZHqXaTggYHubNwEK+8gynMqkMQXjOGU02U0CtUfsYdAm75AW60DySZCRNwOcU0Ndpn1UCpha7fL1k179Dd/OtArkYsIL24ohlfxFeOB3jGYQK6ATmzbvCRjwIKXcyECuajWwfnDg9FtDWrqHNzu5dJlvmxoWm8zCDgMj53uiA7TjujQN81MYrIJNeEwSr5jXQMqzA3mzlk4k3Z0qs3TP robert-jordens-64FEFBAF-4D0749B2-rsa2048"
+     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMUaB2G1jexxfkdlly3fdWslH54/s/bOuvk9AxqpjtAY robert-jordens-ed25519"
+    ];
+  };
+  users.extraUsers.eduardotenholder = {
+    isNormalUser = true;
+    extraGroups = ["afws"];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIu6yhjCoZ62eamYrAXtFefDhplTRUIdD4tncwlkyAEH"
+    ];
+  };
+
+  # HKUST
   users.extraUsers.derppening = {
     isNormalUser = true;
     openssh.authorizedKeys.keys = [
@@ -834,7 +925,7 @@ in
   };
 
   services.postgresql = {
-    package = pkgs.postgresql_12;
+    package = pkgs.postgresql_15;
     settings.listen_addresses = pkgs.lib.mkForce "";
     identMap =
       ''
@@ -1052,15 +1143,6 @@ in
       "forum.m-labs.hk" = {
         forceSSL = true;
         enableACME = true;
-        root = "/var/www/flarum/public";
-        locations."~ \.php$".extraConfig = ''
-          fastcgi_pass unix:${config.services.phpfpm.pools.flarum.socket};
-          fastcgi_index index.php;
-        '';
-        extraConfig = ''
-          index index.php;
-          include /var/www/flarum/.nginx.conf;
-        '';
       };
       "perso.m-labs.hk" = {
         addSSL = true;
@@ -1132,23 +1214,17 @@ in
       };
     };
   };
+
   services.mysql = {
     enable = true;
-    package = pkgs.mariadb;
+    package = pkgs.lib.mkForce pkgs.mariadb;
+    ensureDatabases = pkgs.lib.mkForce [];
+    ensureUsers = pkgs.lib.mkForce [];
   };
-  services.phpfpm.pools.flarum = {
-    user = "nobody";
-    settings = {
-      "listen.owner" = "nginx";
-      "listen.group" = "nginx";
-      "listen.mode" = "0600";
-      "pm" = "dynamic";
-      "pm.max_children" = 5;
-      "pm.start_servers" = 2;
-      "pm.min_spare_servers" = 1;
-      "pm.max_spare_servers" = 3;
-      "pm.max_requests" = 500;
-    };
+  services.flarum = {
+    enable = true;
+    package = pkgs.callPackage ./flarum {};
+    domain = "forum.m-labs.hk";
   };
 
   services.rt = {
@@ -1185,8 +1261,24 @@ in
     enablePop3 = true;
     enablePop3Ssl = true;
     certificateScheme = "acme-nginx";
-    policydSPFExtraConfig = "skip_addresses = 5.78.86.156,2a01:4ff:1f0:83de::1";
   } // (import /etc/nixos/secret/email_settings.nix);
+  services.postfix = {
+    mapFiles."sender_transport" = builtins.toFile "sender_transport" ''
+        @m-labs-intl.com intltunnel:
+    '';
+    config = {
+      sender_dependent_default_transport_maps = "hash:/var/lib/postfix/conf/sender_transport";
+    };
+    masterConfig."intltunnel" = {
+      type = "unix";
+      command = "smtp";
+      args = [
+        "-o" "inet_interfaces=10.47.3.1"
+        "-o" "smtp_helo_name=mail.m-labs-intl.com"
+        "-o" "inet_protocols=ipv4"
+       ];
+    };
+  };
   services.roundcube = {
     enable = true;
     hostName = "mail.m-labs.hk";
@@ -1199,7 +1291,8 @@ in
 
   services.nextcloud = {
     enable = true;
-    package = pkgs.nextcloud29;
+    package = pkgs.nextcloud30;
+    extraApps = { inherit (config.services.nextcloud.package.packages.apps) forms; };
     hostName = "files.m-labs.hk";
     https = true;
     maxUploadSize = "2G";

nixbld-etc-nixos/flarum/default.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  php,
+  fetchFromGitHub,
+  fetchpatch,
+}:
+
+php.buildComposerProject (finalAttrs: {
+  pname = "flarum";
+  version = "1.8.1";
+
+  src = fetchFromGitHub {
+    owner = "flarum";
+    repo = "flarum";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-kigUZpiHTM24XSz33VQYdeulG1YI5s/M02V7xue72VM=";
+  };
+
+  patches = [
+    # Add useful extensions from https://github.com/FriendsOfFlarum
+    # Extensions included: fof/upload, fof/polls, fof/subscribed
+    ./fof-extensions.patch
+  ];
+
+  composerLock = ./composer.lock;
+  composerStrictValidation = false;
+  vendorHash = "sha256-z3KVGmILw8MZ4aaSf6IP/0l16LI/Y2yMzY2KMHf4qSg=";
+
+  meta = with lib; {
+    changelog = "https://github.com/flarum/framework/blob/main/CHANGELOG.md";
+    description = "Flarum is a delightfully simple discussion platform for your website";
+    homepage = "https://github.com/flarum/flarum";
+    license = lib.licenses.mit;
+    maintainers = with maintainers; [
+      fsagbuya
+      jasonodoom
+    ];
+  };
+})

nixbld-etc-nixos/flarum/fof-extensions.patch

@@ -0,0 +1,16 @@
+diff --git a/composer.json b/composer.json
+index c63b5f8..5ad1186 100644
+--- a/composer.json
++++ b/composer.json
+@@ -37,7 +37,10 @@
+         "flarum/sticky": "*",
+         "flarum/subscriptions": "*",
+         "flarum/suspend": "*",
+-        "flarum/tags": "*"
++        "flarum/tags": "*",
++        "fof/polls": "*",
++        "fof/subscribed": "*",
++        "fof/upload": "*"
+     },
+     "config": {
+         "preferred-install": "dist",

nixbld-etc-nixos/named/m-labs-intl.com

@@ -1,7 +1,7 @@
 $TTL 7200
 
 @						SOA	ns.m-labs-intl.com. sb.m-labs.hk. (
-							2024081503
+							2024101401
 							7200
 							3600
 							86400
@@ -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"
 

nixops/common-users.nix

@@ -111,27 +111,6 @@
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBK1tUg7TtceARRnGI80Ai5kNFolFfZ++LH9v1UoRCiJdxeQWPdNYO0Gj7+ejJvgZXwvN4yHGgcZHraEml4Mj/dKrEMFygfuYLDRmXtPFwX6TNMrWlxMhPzuNY+yCaxlqYg=="
     ];
   };
-  architeuthis = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout"];
-    openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBMhLPEGWDUauFHjiVduBMJrIMKT8SvtTDHXDVudUZrhewQy08h4NEEyWmczP4WMeyugI/L/a+J+Vc8mImgqSoHw52823LVcnR9EKnJoqnwAHU/J+41vIWAN2LAryd4p9yg=="
-    ];
-  };
-  abdul = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout"];
-    openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBONzKWn65erPM2xBCe9Dcw8dHRQCJmvzwhX72iHE1xVlAr7UcB1PMOjEB25MFfV/kCIFS5UB5wuoPvq+/oZ3EXiFjmQtsb669KN6MkZNyDqP5Y2W8gR1wVa/ZLfH4HynHg=="
-    ];
-  };
-  lyken = {
-    isNormalUser = true;
-    extraGroups = ["plugdev" "dialout"];
-    openssh.authorizedKeys.keys = [
-      "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBJ88QJlh/+F/xwXQlPEmQVmtycb8FfabxCdeiP3gTHUCV8y4PLh3ubY+EsY+Xhy/GlOAPdX7KSpiII3dndYfwZWzorXVoPBhhPKEIumFBOinWfp5kRVzWOD61gCwsYoVBg=="
-    ];
-  };
 
   dpn = {
     isNormalUser = true;

remote-ipsec.txt

@@ -0,0 +1,49 @@
+connections {
+  bypass-ipsec {
+    remote_addrs = 127.0.0.1
+    children {
+      bypass-isakmp-v4 {
+        local_ts = 0.0.0.0/0[udp/isakmp]
+        remote_ts = 0.0.0.0/0[udp/isakmp]
+        mode = pass
+        start_action = trap
+      }
+      bypass-isakmp-v6 {
+        local_ts = ::/0[udp/isakmp]
+        remote_ts = ::/0[udp/isakmp]
+        mode = pass
+        start_action = trap
+      }
+    }
+  }
+  m_labs {
+    version = 2
+    encap = no
+    mobike = no
+    send_certreq = no
+    proposals = aes128gcm128-sha256-prfsha256-curve25519,aes128gcm128-sha256-prfsha256-ecp256
+    local_addrs = 103.206.98.1
+    remote_addrs = 94.190.212.123
+    local {
+      auth = pubkey
+      id = fqdn:igw0.hkg.as150788.net
+      pubkeys = igw0.hkg.as150788.net
+    }
+    remote {
+      auth = pubkey
+      id = fqdn:m-labs.hk
+      pubkeys = m-labs.hk
+    }
+    children {
+      con1 {
+        mode = transport
+        ah_proposals = sha256-curve25519,sha256-ecp256
+        esp_proposals =
+        local_ts = 103.206.98.1[gre]
+        remote_ts = 94.190.212.123[gre]
+        start_action = none
+        close_action = none
+      }
+    }
+  }
+}