Photon OS iptables - CloudCommandos/JohnChan GitHub Wiki

Photon OS comes with strict iptables rules. You will need to allow ingress to ports manually with iptables. e.g.

iptables -I INPUT 4 -p tcp --dport 2181 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 2888 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 3888 -j ACCEPT
iptables -I INPUT 4 -p tcp --dport 9091 -j ACCEPT

Persist iptables rules

iptables-save > /etc/systemd/scripts/ip4save