You just need to change the directory name of geoserver in the tomcat
webapps directory, for example I have:
geoservergeoserver-2.15.1.war geoserver-2.17.0 ROOT
geoserver-2.14geoserver-2.15.x geoserver-2.17.0.war
geoserver-2.14.war geoserver-2.16.3 GPL.txt
geoserver-2.15.1
Dear Geoserver support team,
I had setup both two instance geoservers to my server and using nginx to
reverse proxy my traffic on default 80 port as below scenario:
Geoserver instance one: mydomain:8080/geoserver/web -->
mydomain/appOnegeo/
Geoserver instance second :