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# Since this is a critical file, back it up first.
sudo cp /etc/ssh/sshd_config /etc/ssh/sshd_config.2011-02-12.v0.0.tinpham_about_to_disable_password_auth.bck
# Load the file in your favourite editor.
sudo vi /etc/ssh/sshd_config |
Adjust We can modify sshd_config quickly using sed,
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sudo sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/g' /etc/ssh/sshd_config |
Changes the following,
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# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication yes
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Remove the comment Uncomment and change yes to no. It should look like this,
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