unable to disable password based authentication for ssh

[petersonflake]

Hello,

I am trying to set up ssh to use public key only. The guides said to set the config as:

Code: Select all

PasswordAuthentication no

ChallengeResponseAuthentication no

UsePAM no

and restart the ssh server, which I have done. My entire config is:

Code: Select all

# This is the ssh client system-wide configuration file.  See
# ssh_config(5) for more information.  This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Site-wide defaults for some commonly used options.  For a comprehensive
# list of available options, their meanings and defaults, please see the
# ssh_config(5) man page.

Host *
   ForwardAgent no
   ForwardX11 no 
# ForwardX11Trusted yes
   PasswordAuthentication no
   HostbasedAuthentication no
#   GSSAPIAuthentication no
#   GSSAPIDelegateCredentials no
#   GSSAPIKeyExchange no
#   GSSAPITrustDNS no
#   BatchMode no
#   CheckHostIP yes
#   AddressFamily any
#   ConnectTimeout 0
#   StrictHostKeyChecking ask
#   IdentityFile ~/.ssh/id_rsa
#   IdentityFile ~/.ssh/id_dsa
#   IdentityFile ~/.ssh/id_ecdsa
#   IdentityFile ~/.ssh/id_ed25519
#   Port 22
#   Protocol 2
#   Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc
#   MACs hmac-md5,hmac-sha1,umac-64@openssh.com
#   EscapeChar ~
#   Tunnel no
#   TunnelDevice any:any
#   PermitLocalCommand no
#   VisualHostKey no
#   ProxyCommand ssh -q -W %h:%p gateway.example.com
#   RekeyLimit 1G 1h
    SendEnv LANG LC_*
    HashKnownHosts yes
    GSSAPIAuthentication yes
    ChallengeResponseAuthentication no

    UsePAM no
    UseLogin no

Is there something I am missing? When I do ssh -v pi on another machine, I can still get a password prompt and it says:

Authentications that can continue: publickey,password

which makes me think I am missing something. I restart with sudo systemctl restart sshd, but have also tried rebooting, and neither results in the expected outcome.