Hi,   I am configuring CDSW to use NVIDIA GPU in the environment where the Proxy server exists based on the procedures here: https://www.cloudera.com/documentation/data-science-workbench/latest/topics/cdsw_gpu.html   However, I got the following error message when I tried to pull the docker image:   $sudo nvidia-docker run --rm nvidia/cuda:9.2-devel-ubuntu16.04 nvidia-smi nvidia-docker | 2018/10/08 13:14:19 Error: Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)   I guess the root cause may be related to improper DNS or Proxy setting and I reviewed them many times, but I can still not solve the problem.   One weird thing I found is that 'sudo cdsw status -v' resulted in the following error when I configured 'HTTP Proxy' from 'Cloudera Manager > CDSW > Configuration > Cloudera Data Science Workbench (Service-Wide)':   {metric: http_port_check, status: FAILURE, report_to_cm: True, timestampMs: 1538973062774, message: HTTP port check timed out after 60 seconds.}   The error was cleared when I deleted the HTTP Proxy configuration, but I could not do the 'docker run' command.   I am using **bleep**.io for the wildcard DNS subdomain requirement.   Any suggestion would be appreciated.   ... View more