Adding a New Application Tier Node to an Existing System

Hi.

I am busy trying to set up a 2nd application tier for our external iRecrutment users using the architecture in the diagram below, but I am battling to understand one of the steps. I wonder is someone can help me to understand if these steps are relevant to my environment.

I am following this document;

"Oracle E-Business Suite Release 12.2 Configuration in a DMZ (Doc ID 1375670.1)"

I am using this section;

Section 5.1: DMZ configuration with a reverse proxy and an external application tier

Everything went fine until this step;

Section 5.1.2.4.6: Sync Up the Context File and Update Configuration on All Nodes