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Maak lijst met kandidaten in Excel, met alle studenten nummers en verzin wachtwoorden.

Maak een  text input file met userid's en passwords (gescheiden door spatie).

Scipts ran on Ubuntu Server VPS

SFTP restriction

in /etc/ssh/sshd_config (aan eind toevoegen).

Match Group sftp
ForceCommand internal-sftp
ChrootDirectory %h
AllowTCPForwarding no
PermitTunnel no
X11Forwarding no

Werkt niet goed - uiteindelijk opgelost met standaard rechten:

drwxr-xr-x  14 root root      4096 Jul 26  2020 var/

drwxrwxr-x  9 root  www-data  4096 Nov 30 10:28 www/

drwxr-x--x 78 max   root      4096 Feb  4 21:12 softwaredeveloper/
  
drwxr-x--x  4 u515  sftp      4096 Feb  5 16:15 u515/
(group root werkt ook)

-rw-rw-r--  1 u515 sftp         38 Feb  3 19:42 index.php
(group root werkt ook)

Note group sftp only needed if ssh restriction are aplied
Readme
input file consists out of line with
<userid> <password>

add users
run addUser.sh <file>
run creatDBUsers.sql file; sudo mysql < createDB Users.sql

remove
run removeUser.sf <file>
go to php myadmin and delete dabases and users (no script but easy with gui)

Script add users

#!/bin/bash
# Script to add a user to Linux system
# Params <user> <passw> or <file>

DB_FILE=createDBUsers.sql

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

    echo "" >> $DB_FILE

    if [ "$1" == "" ]; then
      read -p "Enter username : " username
    else
      username=$1
    fi
    if [ "$2" == "" ]; then
      read -s -p "Enter password : " password
    else
      password=$2
    fi

    egrep "^$username" /etc/passwd >/dev/null
    if [ $? -eq 0 ]; then
      echo "$username exists!"
      exit 1
    else
      U_HOME=/var/www/softwaredeveloper/$username
      U_GROUP=sftp
      U_SHELL=/bin/bash

      pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)

      useradd -d $U_HOME -g $U_GROUP -m -s $U_SHELL -p $pass $username
      [ $? -eq 0 ] && echo "User $username has been added to system!" || echo "Failed to add a user!"

      chown $username $U_HOME
      echo "<?php echo \"welkom $username\"; ?>" > $U_HOME/index.php
      chown $username $U_HOME/index.php

      echo "" >> $DB_FILE
      echo  "CREATE USER \`$username\`@\`%\` IDENTIFIED BY '$password';" >> $DB_FILE
      echo  "ALTER USER  \`$username\`@\`%\` REQUIRE NONE;" >> $DB_FILE
      echo  "CREATE DATABASE IF NOT EXISTS \`$username\`;" >> $DB_FILE
      echo  "GRANT ALL PRIVILEGES ON \`$username\`.* TO \`$username\`@\`%\`;" >> $DB_FILE

    fi
  else
    echo "Only root may add a user to the system"
    exit 2
  fi
}

# is parameter is file then read input from file <user> Mpassword>
# else read two command line params
if test -f "$1"; then
  while IFS= read -r line
  do
    addThisUser $line
  done < $1
else
  addThisUser $1 $2
fi

script del users

#!/bin/bash
# remove user, params <user> or <file>

removeThisUser() {
  if [ $(id -u) -ne 0 ]; then
    echo "Only root may add a user to the system"
    exit 2
  fi

  if [ "$1" == "" ]; then
    read -p "Enter username : " username
  else
    username=$1
  fi

  if [ $? -eq 0 ]; then
    userdel -r $username
    getent group $username || groupadd $username

    U_HOME=/var/www/softwaredeveloper/$username

    echo "Remove $U_HOME"

  fi
}


# is parameter is file then read input from file <user>
# else read command line params
if test -f "$1"; then
    while IFS= read -r line
  do
    removeThisUser $line
  done < $1
else
  removeThisUser $1 $2
fi

 

 

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