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Ubuntu – Error on useradd, 'No password provided' while adding user using ssh

I am new to linux and I am trying to create user across many servers and I use ssh for it.

ssh -t adm@"$SERVER" /bin/sh << EOF

        # Check if user already exists
        if id "$USERNAME" >/dev/null 2>&1; then
            echo "User $USERNAME already exists on $SERVER."
        else
            # Create user on the remote server
            sudo -S useradd -m -s /bin/bash "$USERNAME"
        fi
 EOF

while executing this, my prompt is not asking for the adm password and it fails. Please see logs

sudo: no password was provided
sudo: a password is required

What should I do so that the prompt asks me the password of adm and uses it to create a user ?

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2

Answers


  1. 0

    In the manpages, there is the following:

    Finally, if other authentication methods fail, ssh prompts the
    user for a password. The password is sent to the remote host for
    checking; however, since all communications are encrypted, the
    password cannot be seen by someone listening on the network.

    As you see, ssh is set up in such a way that entering the password does not reveal the password, which would not make much sense if the password is given along with the ssh command.

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  2. 0

    I’ve never encountered such scenario but try using sshpass -p <password> ssh <username>@<ip-address> at the beginning and see if it helps.

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