I've just installed GeoNetwork 2.6.4 on CentOS 6.2 using MySQL as the database backend. Now, when I go to the web interface, I see the main web site, but no maps are displayed. On the geonetwork machine (actually it's a VM) I see them, but over the network I don't.
Can anyone think of anything I should check or change? I set the jetty.xml file to listen on all interfaces and turned iptables off (it was on by default) so that I could access the web site at all.