The requested url/phpmyadmin is not found on this server.

This error, I made a long time, the first I thought I installed a problem, I uninstalled reinstall, but in the result or reported such a mistake.

Find the installation location for phpMyAdmin input:

sudo dpkg-l phpmyadmin

Can see a lot of

/usr/share/phpmyadmin/setup/frames/servers.inc.php
/usr/share/phpmyadmin/setup/frames/menu.inc.php
/usr/share/phpmyadmin/setup/frames/index.inc.php
/usr/share/phpmyadmin/setup/frames/form.inc.php
/usr/share/phpmyadmin/setup/frames/config.inc.php
/usr/share/phpmyadmin/setup/frames/.htaccess
/usr/share/phpmyadmin/setup/index.php
/usr/share/phpmyadmin/setup/styles.css
/usr/share/phpmyadmin/setup/config.php
/usr/share/phpmyadmin/setup/validate.php
/usr/share/dbconfig-common

This way we can easily see where the phpMyAdmin is installed.

Then the solution is to copy the phpMyAdmin file directly into the/var/www/directory. Just OK!

The requested url/phpmyadmin is not found on this server.