SSH certificate access (recommended)
Issue a short-lived SSH certificate for this environment and connect through jump host.
ssh-keygen -t ed25519 -f ~/.ssh/msrs_efb826b6 -C "1234" msrs access issue-cert --env efb826b6-7f4b-49eb-9ba6-cd5de5ad0ada --pub ~/.ssh/msrs_efb826b6.pub ssh -i ~/.ssh/msrs_efb826b6 -J jump.aws.msrs.internal support@1234-node-1.stub.msrs.internal