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_6f82f6ea -C "123456" msrs access issue-cert --env 6f82f6ea-57a2-44b9-857a-0c4fa05e9b99 --pub ~/.ssh/msrs_6f82f6ea.pub ssh -i ~/.ssh/msrs_6f82f6ea -J jump.aws.msrs.internal support@123456-wan001-node01.stub.msrs.internal