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_5d82414d -C "12345" msrs access issue-cert --env 5d82414d-f0b6-4f86-aa7f-244bf65bd8c9 --pub ~/.ssh/msrs_5d82414d.pub ssh -i ~/.ssh/msrs_5d82414d -J jump.aws.msrs.internal support@12345-wan001-node01.stub.msrs.internal