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I cant find the line "PasswordAuthentication no " with sudo nano /etc/shh/shhd_config command

Posted October 4, 2017 3.3k views
SecurityUbuntu 16.04

To disable Password Authentication after sshkey been added to home directory for user.

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efbergh
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efbergh

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3 answers
eset October 5, 2017

Instead using nano when you can’t find that line try to grep that string to find out if it’s really there (Maybe you can’t see it ;) )

grep -n PasswordAuthentication  /etc/ssh/sshd_config

It will give you also the line number in file where it is exactly. If there will be nothing, so just try to put that parameter to that file and restart sshd

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mellona77 September 9, 2018

Hi ebbergh,

It happens to me as well. So, I search sshd_config first, and then I go to the directory like this.

find / -name sshd_config

The directory is /etc/ssh/sshd_config. Use the command below to go to the directory.

cd /etc/ssh/

Once you go to the directory, you will see PasswordAuthentication No when you type the command below.

Pico sshd_config

Hope my comment can help you:)

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alexdo September 18, 2021

Hello all,

  1. Log in to the console on the DigitalOcean website.
  2. Type sudo nano /etc/ssh/sshd_config
  3. Change PasswordAuthentication from “yes” to “no” and save the file

Hope that this helps!
Regards,
Alex

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