dynamic_dns

provides an http endpoint to update configured cloudflare record

it won't hit cloudflare unless it thinks it needs to

server setup

• install on a server with a static IP, e.g. (a digital ocean VPS) via npm npm install -g dynamic_dns
• generate ssl cert openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 -subj "/C=US/ST=Denial/L=Springfield/O=Dis/CN=www.example.com" -keyout etc/ssl/server.key -out etc/ssl/server.crt
• copy config example cp etc/config.example.js etc/config.js
• make sure to change your secret in etc/config.js
• start the daemon dynamic_dns -k /path/to/key -c /path/to/cert -e [e-mail] -t your_cloudflare_token

client setup

install a client like so

cat <<EOF | sudo tee /usr/local/bin/dynamic_dns_client
#!/bin/sh
while true; do
  curl https://example.org:3000/example.org/\?secret\=your_secret 2>/dev/null
  curl https://example.org:3000/www.example.org/\?secret\=your_secret 2>/dev/null
  echo
  sleep 120
done
EOF