Howto install apache felix web console on liferay dxp 7.2
First locate the url for the webconsole jar-file at https://felix.apache.org/downloads.cgi
In this example I use the following:
http://apache.mirror.triple-it.nl//felix/org.apache.felix.webconsole-4.3.12-all.jar
Now, head over to your gogo shell (web|telnet|blade sh)
Run install http://apache.mirror.triple-it.nl//felix/org.apache.felix.webconsole-4.3.12-all.jar
Run diag [BUNDLE_ID]
If all is fine run start [BUNDLE_ID]
Now open a browser window and goto http[s]://[YOUR_HOST]:[YOUR_PORT]/o/system/console
Login with the default user/pw admin/admin
In case you want to change the default user/pw check out https://felix.apache.org/documentation/subprojects/apache-felix-web-console.html#configuration