Add a User To Group www-data ( Apache Group ) Rumi, October 10, 2019 The procedure is as follows: Open the terminal application. Login to Ubuntu server using ssh. Add a new user named foo to www-data group by running useradd -g www-data foo command. Add an existing user bar to Apache’s www-data group on Ubuntu using usermod -a -G www-data bar command. Verify new modification on Linux… Continue Reading