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Aux_Project

Shell Script to automate onboarding of new users on a linux server

Different codes used in the project:

  1. This command locks the script to ensure only a user with sudo priviledge can run it

    if [ $(id -u) -eq 0 ]; then

  2. creating a loop to read the names stored in the userfile(names.csv)

     for user in $NEW_USERS;
     do
         echo $user 
         if id "$user" &>/dev/null
          then 
          echo "user exists"else
    
  3. This command will create a new user

    useradd -m -d /home/$user
    -s /bin/bash
    -g developers $user echo "New User Created"

  4. This command will create a ssh and home directory for the users

    echo

    su - -c "mkdir ~/.ssh" $user echo ".ssh and home folder successfully created for new user "

  5. This command will set permissions for the key_file

    echo

    su - -c "chmod 700 ~/.ssh" $user echo "directory Permission set for created user"

  6. This command will create an authorized_key_file

    echo

    su - -c "touch ~/.ssh/authorized_keys" $user echo "authorized_keys directly successfully created"

  7. This command will set permission for the authorized_key file

    echo

    su - -c "chmod 600 ~/.ssh/authorized_keys" $user echo "Permission set successfully for authorized_keys file"

  8. This command will set public key for the users in the server

    cp -R "/root/onboard/id_rsa.pub" "/home/$user/.ssh/authorized_keys"

    echo "public key file successfully copied to user account on the server"

    echo "User Successfully Created"

  9. Generating a Password for users

    sudo echo -e "teejay\nteejay" | sudo passwd "$user"

    sudo passwd -x 7 $user

    fi

         done
    

    else

    echo "only Admin can onboard a User"

    fi

  10. Making Directory for Script (mkdir shell)

Making Directory for script

  1. Creating CSV file in Shell directory (touch names.csv)

Creating csv file

  1. Populating csv file with random names

Populating names.csv

  1. Creating developers group on server (Sudo groupadd developers)

  1. Creating directory for public key & Private key and populating it with public key (mkdir id_rsa.pub id_rsa)

  1. Running the script (./onboarding.sh)

  1. users successfully created

  1. Logged in as another user (Kunle) and verifyying .ssh folder is created including home directory

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