Azure CentOS 虚拟机启用 ROOT 账户
2021/6/13 7:23:02
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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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