Can't access admin console after install

Hello, I just installed Openfire 3.10.2 on a Centos 7 server like it says on the instructions here:

Openfire: Installation Guide

I did make sure Java is installed:

[root@server conf]# java -version

openjdk version "1.8.0_45"

OpenJDK Runtime Environment (build 1.8.0_45-b13)

OpenJDK 64-Bit Server VM (build 25.45-b02, mixed mode)

The server is listening on 9090:

[root@server conf]# netstat -an | grep 9090

tcp        0      0 0.0.0.0:9090            0.0.0.0:*               LISTEN

But when I try to go to server:9090, it always times out and says webpage not available. What could I be doing wrong?

The /opt/openfire/logs/error.log file is completely empty.

Thanks in advance.