How can I open a port in iptables for RMI access

Question

I'm trying to connect from my Java application to a development server that has port 8088 closed which is used for RMI. I appreciate any help on how to open that port.

Answer 1

Slicehost have some good documentation on setting up iptables on Ubuntu:

• http://articles.slicehost.com/2008/4/25/ubuntu-hardy-setup-page-1
• http://articles.slicehost.com/2008/9/2/mail-server-opening-ports-in-the-firewall

Answer 2

Assuming

• you want to allow access from everywhere
• you want to allow access via the first ethernet device (eth0)
• you want to allow access to port 8088 using tcp

then you could try running

iptables -I INPUT -i eth0 -p tcp --dport 8088 -j ACCEPT

as root.