Allow Bitmessage API port

beaglebone.txt

 iptables -A INPUT -p tcp --destination-port 4242 -j DROP
 iptables -A INPUT -p tcp --destination-port 9050 -j DROP
 iptables -A INPUT -p tcp --destination-port 3000 -j DROP
-iptables -A INPUT -p tcp --destination-port 8442 -j DROP
 iptables -A INPUT -p udp --destination-port 1 -j DROP
 iptables -A INPUT -p udp --destination-port 7 -j DROP
 iptables -A INPUT -p udp --destination-port 109:111 -j DROP