Phpmyadmin

 ubuntu 18.4
1)
  https://www.ostechnix.com/install-phpmyadmin-with-lamp-stack-on-ubuntu-18-04-lts/

2)
   https://stackoverflow.com/questions/22893702/the-requested-url-phpmyadmin-was-not-found-on-this-server

  символическую ссылку создать

sudo ln -s /usr/share/phpmyadmin /var/www/html/phpmyadmin