sudo sysctl -w net.inet.ip.ttl=65
in terminal:
sudo vi /etc/init.d/local.autostart
paste this to file:
#!/bin/bash
sudo iptables -t mangle -A POSTROUTING -j TTL --ttl-set 65
in terminal:
sudo chmod +x /etc/init.d/local.autostart
sudo update-rc.d local.autostart defaults 80