chimney script: check if chimney script run on the same server as the domain 

```
IP=$(dig +short blimp8mzfc.zus.network)
CURRENT_IP=$(curl ipv4.icanhazip.com)

if [ "$EXPECTED_IP" != "$CURRENT_IP" ]; then
  echo "the ip of this server is not pointed to domain: blimp8mzfc.zus.network. Please point the domain and try again"
  exit 1
fi
```

This script can be used to check