I have hosted two node application on Bitnami Mean stack server by taking reference from this link
1) According to this documentation my application should run on http://[your-IP-address]/myapp url but it is opening directly at http://[your-IP-address].
2) I have hosted two node applications running at 4000 and 5000 port. When you hit on ip it opens that application which is firstly placed in this file "/opt/bitnami/apache2/conf/bitnami/bitnami-apps-prefix.conf".
content of bitnami-apps-prefix.conf
# Bitnami applications installed in a prefix URL
3) How to map url to open specific application.
App1 settings -> httpd-app.conf
ProxyPass / http://127.0.0.1:5000/
ProxyPassReverse / http://127.0.0.1:5000/
App2 settings -> httpd-app.conf
ProxyPass / http://127.0.0.1:4000/
ProxyPassReverse / http://127.0.0.1:4000/