I use Ubuntu’s Uncomplicated firewall because it is available on Ubuntu and it's very simple.
if ufw is not installed by default be sure to install it first.
| public class MysteryBox { | |
| private long x0,x1; | |
| private boolean y0,y1,y2,y3; | |
| private int z0; | |
| private double[] a = new double[8]; | |
| } |