4.5.4 Other

Other Connection Methods

SSM Shell (from PCUI)

For quick terminal access without DCV:

  1. Select your cluster in PCUI
  2. Click Shell
  3. A terminal session opens directly in your browser

This uses AWS Systems Manager Session Manager — no SSH keys or open ports required.

AWS CloudShell

You can also manage clusters from AWS CloudShell in the AWS Console:

pcluster list-clusters
pcluster ssh --cluster-name my-hpc-cluster

Common Issues

Issue Cause Solution
Connection refused Cluster not running Check cluster status in PCUI
DCV popup blocked Browser settings Allow popups for the PCUI site
UDP not working Port 8443 UDP not open Open UDP:8443 in the security group