# Installation

In this chapter we will see how to prepare the development environment on Linux and Windows operating systems for working with Axelor Open Platform sources.

## OpenJDK

On Linux/MacOS install OpenJDK 11 and make sure JDK command line tools are in your path. If you use distribution provided OpenJDK, they are already available in PATH otherwise do this:

$export JAVA_HOME=/path/to/jdk$ export PATH=$JAVA_HOME/bin:$PATH

On Windows, the JDK installer generally configures PATH environment. However, you can do following to setup PATH manually.

$set JAVA_HOME=\path\to\jdk$ set PATH=%JAVA_HOME%\bin;%PATH%

To ensure, JDK is installed properly, try this command from console:

\$ javac -version
 See the list of well known JDK distributions.

## PostgreSQL

# TYPE  DATABASE        USER            ADDRESS                 METHOD
host    all             all             ::1/128                 md5