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| sudo sed -i "s/#\{0,1\}Port .*/Port xxxx/" /etc/ssh/sshd_config | |
| sudo sed -i "s/#\{0,1\}PermitRootLogin yes/PermitRootLogin no/" /etc/ssh/sshd_config | |
| sudo sed -i "s/#\{0,1\}PasswordAuthentication yes/PasswordAuthentication no/" /etc/ssh/sshd_config | |
| service sshd reload |
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