Network considerations

Consider these limitations before deploying portal and portlet projects to a remote server.

Publishing from Linux® systems

Here are issues that you may encounter when trying to publish your portal project from Rational® tools (installed on a Linux system) via the Deploy wizard:
  • 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.

Receiving incoming requests through firewalls

Limitation: When you deploy portlets to a portal server as part of your portal project, Rational tools use 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 tools. 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.

Here are some of the possible actions you can take:
  • Registering Java launcher to the firewall to allow Rational tools to open a port.
  • Adding the IP address of the Portal server as a trusted address, so that an incoming request is allowed.
  • Registering a port number to the firewall to allow an incoming request to reach to that port.
    The port number used by Rational tools is not fixed by default, if you need to register a fixed port number, then do the following:
    1. In the menu bar, select Windows Preferences .
    2. Expand Help > Help Server.
    3. Specify a port number for the server.
    4. Click OK.
    5. Restart the Rational Software Development Platform.
    6. Register the port number to the firewall.
Related tasks
Publishing portals
Defining servers for publishing or importing portals
Exporting portal projects
Optimizing JSP file testing
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