import java.net.*;
public class EgressProbe {
  public static void main(String[] args) throws Exception {
    String[] hosts = {"db", "10.5.34.202", "1.1.1.1"};
    int[] ports = {3306, 3306, 443};
    for (int i=0;i<hosts.length;i++) {
      boolean connected=false;
      try (Socket socket=new Socket()) {
        socket.connect(new InetSocketAddress(hosts[i],ports[i]),1500);
        connected=true;
      } catch(Exception expected) {}
      System.out.println(hosts[i]+":"+ports[i]+"="+(connected?"connected":"blocked"));
      if ((i==0)!=connected) throw new IllegalStateException("Unexpected UAT network policy");
    }
  }
}