ubuntu/root\343\203\255\343\202\260\343\202\244\343\203\263\343\202\222\347\204\241\345\212\271\345\214\226\343\201\231\343\202\213.md
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+[Disable "root" Login - Ask Ubuntu](https://askubuntu.com/questions/972705/disable-root-login)
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+
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+```
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+$ sudo passwd -l root
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+```
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