Unable to install Docker DTR

Question

I am trying to install docker DTR using a command mentioned below but getting failed

Command:

docker run -it --rm docker/dtr install \

  --ucp-node mbk-srv-389-ub \

  --ucp-username admin \

  --ucp-url https://172.16.217.1 \

  --ucp-insecure-tls

But its giving error

ERROR:

FATA[0006] Failed to choose ucp node: The UCP node 'mbk-srv-389-ub' has port conflicts, please pick another node or choose a different port. 

So i tried to add port 445 **--ucp-url https://172.16.217.1:445** as port 443 is also used by UCP but then it is showing another error.

ERROR:

FATA[0006] Failed to get new conv client: failed to create http client: Failed to get UCP CA: Get https://172.16.217.1:445/ca: dial tcp 172.16.217.1:445: connect: connection refused 

INFO: port 445 is open on the firewall. no other service is running on port 445

Answer 1

DTR needs port 443 free, if 443 isn't free the install will fail.

Install UCP with --controller-port to any port other than 443 and then install DTR, it will work