But could you get into the network to access the UNIX boxes without a PIV card? That's how the NIH works -- the UNIX boxes do have passwords, but unless you are on campus you have to connect to the VPN with your PIV card first.
NIST has a similar setup. There’s an exemption for e.g. summer students who are issued temporary non-PIV badges, but they’re issued a yubikey that’s required to access the network from off campus
