How to edit phpmyadmin config on debian?

Question

PHP

Phpmyadmin installed on debian 7 via apt-get install phpmyadmin.
The manuals say that the config is located at /etc/phpmyadmin/config.inc.php, but editing this file does not lead to changes.
Similarly, creating config.inc.php in /usr/share/phpmyadmin, as written in other manuals, also did not bring results.

Answer 1

It turned out that open_basedir was configured in php-fpm, which did not allow reading from /etc/phpmyadmin, while the script for some reason did not give an error.
Resolved by adding /etc/phpmyadmin to open_basedir.

Answer 2

/var/lib/phpmyadmin/ look