Serial console

When a node is unreachable over SSH — wedged mid-boot, with a broken network configuration, or otherwise off the network — the serial console is the way in. navi serial connects to a node's console so you can watch it boot or log in when nothing else works.

navi serial rack-01

This is the fallback for situations the other commands cannot reach. A node that will not come up far enough to accept an SSH connection, or whose last deploy broke its networking, can still be driven from its serial console. For an encrypted host that is simply waiting on its passphrase, prefer Remote unlock — the serial console is for when the machine needs hands-on attention beyond that.