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Yevgeniy Afanasyev
Asked: 2022-03-01 16:22:14 +0800 CST

Log in failed CLIENT_UNAUTHORIZED [769] on Web terminal of AWS LightAail

  • 772

I'm using AWS LightAail on Ubuntu.

Initially Web based Terminal was working fine, but when I did

$ sudo apt-get update
$ sudo apt-get upgrade

I got an error

Log in failed. If this instance has just started up, try again in a minute or two.
CLIENT_UNAUTHORIZED [769]
ubuntu amazon-web-services amazon-lightsail

1 Answers

  1. 0 ) SSH into your instance using a terminal app like in example below, but only provide a real filename of your ssh key and your real ip

    $ ssh -i ".ssh/LightsailDefaultKey-.pem" [email protected]

    1 ) add following 2 lines to /etc/ssh/sshd_config

    TrustedUserCAKeys /etc/ssh/lightsail_instance_ca.pub
CASignatureAlgorithms +ssh-rsa

    2 ) Restart

    sudo /etc/init.d/ssh restart
    • 0