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Please login as the user "centos" rather than the user "root".

Please login as the user "centos" rather than the user "root".



If you tried to access your instance using SSH as root:
ssh -i PrivateKey.pem  root@Floating-IP-Address Where Flaoting-IP-Address is the flaoting IP address associated with your instance. You might get this message: “Please login as the user “centos” rather than the user “root”.” Then the connection will close.

Steps To Allow Root Access Through SSH

  • Login as the user “centos”: # ssh -i PrivateKey.pem  centos@Floating-IP-Address
  • Change to root: # sudo -s
  • Edit the file “/root/.ssh/authorized_keys” (# vi /root/.ssh/authorized_keys) and keep it only contains the key  (starts with “sh-rsa”) without the restrictions that exist at the begining of the file.
  • Open the file “/etc/ssh/sshd_config” and uncomment the line “PermitRootLogin yes”
  • Restart SSH daemon: # systemctl restart sshd
Now you can SSH as root to your instance.
Note: You need to automate the above if your servers are created/ deleted on demand and SSH public keys are inserted in servers on boot by Openstack.

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