How to open iptables ports inside a cluster?

Question

How can I use iptables to open ports 21001-22000 in a cluster, allowing the worker nodes to communicate between them and with the front-end?

The cluster is configured with CentOS 6.3, Rocks 6.1 and iptables 1.4.7.

score 2 · Accepted Answer · edited Sep 20 '13 at 16:42

2

The following command run as root will do that:

# iptables -A INPUT -p tcp --dport 21001:22000 -j ACCEPT

Check the iptables(8) manpage for details.

edited Sep 20 '13 at 16:42

dawud

answered Sep 20 '13 at 15:12

Daniel Widrick

1 Answers1