Original Error: *errors.errorString ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

Type:

issue

Question/Problem:

Original Error: *errors.errorString ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

Symptoms:

Attempting to log in via `tsh login` produces the error seen in the logs bellow.

Logs:

WARN [CLIENT]    Failed to authenticate with proxy proxy.teleport.proxy.services:3023. error:[ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain] client/api.go:2060

ERROR REPORT:
Original Error: *errors.errorString ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

Repro Steps:

n/a

Solution:

Common root causes for this issue are one of the following:

1. Time sync issues between Teleport Auth server and Local Client
2. Too many keys in the `ssh-agent` causing authentication to fail and after cycling through too many incorrect keys

For potential RC #1:
* Check time on Teleport Auth server and make sure it's accurate and not de-synced. If so, correct the time issue on the Teleport Auth server.

For potential RC #2:
* Clear out the `ssh-agent` with `ssh-add -D`, then logout and log back into teleport with `tsh login`