# Gisgraphy installation guide

Gisgraphy installation procedure is simple but needs Java, Postgres and Postgis to be already installed on your system.
If you are familiar with their installations, you can skip the 'Environment setup' and read directly the 'Gisgraphy installation'.
Choose the right procedures for your operating system :

## Environment setup

Windows system Environment setup : a step-by-step guide to help you setup Java, Postgres and Postgis.
Linux / Unix system Environment setup : a step-by-step guide to help you setup Java, Postgres and Postgis.

## Gisgraphy installation

> Gisgraphy installation guide. once postgres postgis and java is install, gisgraphy takes 5 minutes to get installed. you just need to run some sql script