Consider these limitations before deploying portal and portlet projects to a remote server.
By default, Linux loads a firewall. The default firewall settings of many Linux installations will prevent deployment of portlet WAR files.
By default, some installations of Linux create an association in /etc/hosts between the host name of the machine and the loopback address (127.0.0.1). This can cause problems for Java™ networking programs which need to retrieve the IP address of the machine.
To resolve this problem, update the /etc/hosts file or update the name service configuration file (/etc/nsswitch.conf) to query a DNS or NIS server before searching /etc/hosts.
Limitation: When you deploy portlets to a portal server as part of your portal project, Rational Developer uses XML configuration scripts that instruct the Portal server to retrieve portlets from your workstation. If you have a firewall enabled on your workstation, you need to allow incoming requests from the Portal server to Rational Developer. The required actions depend on the type of firewall. This is necessary when you test or deploy portlets to a remote server, directly from the portlet project or indirectly from a portal project.