Which ports can't be changed?

[dewan_abdullah]

I would like to know if the following ports can be closed or changed to other ports?

4242 , 5050 , 5151 , 9090

and to what ports I can change them to if possible,

Thanks,

Abdallah

[Anil_Babu_Samineni]

What are these ports about?

[dewan_abdullah]

Qlik Sense ports.

[dewan_abdullah]

Port	Service Name	Required for
4242	Qlik Sense Proxy Service (QPS)	REST API
5050	Qlik Sense Scheduler Service (QSS)	Master API
5050	Qlik Sense Scheduler Service (QSS)	Master REST API
5151	Qlik Sense Scheduler Service (QSS)	Slave REST API
9090	DownloadPrep	Used by the Service Dispatcher launched microservices