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Install the JDK

Download the Java 6 (1.6), Java 5 (1.5) or higher Java SE JDK from java.sun.com and install it. The JDK, not just a JRE, is required by the web UI, since JSP pages are dynamically compiled. You need the version labeled “Java SE” (for “standard edition”), not EE, ME, or FX.

Install PostgreSQL

Download the Installer

Download the one-click PostgreSQL for Windows installer.

http://www.postgresql.org/download/windows

Run the PostgreSQL Installer

Run the installer. For the most part, the defaults should be just fine. You should not need to run the Stack Builder for OpenNMS, although if you intend to use PostgreSQL for other things, it lets you install replication, web, and ODBC tools.

Continue reading Free Network Management Station – OpenNMS Windows OS Installation