Sakit,
When you're running the initial setup.py on the "primary" server, you must use the hostname of another server that will be running NGINX.
After that, the setup.properties.last will contain that hostname, so you don't need to adjust it on the other servers, as all of them need to point to that separate NGINX server for proxying between the systems.
Now for the keystore_Config.py file, you have to change the hostname variable to the NGINX serer.
For example:
```
nginx.gluu.org <--- my proxy which we configure near the end of the documentation.
node1.gluu.org <---- Primary using nginx.gluu.org as the hostname with setup.py
node2.gluu.org <---- Copy the setup.properties.last file here inside the Gluu chroot as /install/community-edition-setup/setup.properties and modify the ip address inside the file to node2.gluu.org's ip address. Now run setup.py and hit enter.
```
Then continue with step 2, removing the contents of main_db from node2.gluu.org (so node1 can replicate all it's data after we finish configuring everything) and making accesslog directories on all our servers.
And so on...