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https://czterytygodnie.pl/wprowadzenie-do-redis-a/
apt install php-apcu redis-server php-redissudo nano /var/www/html/nextcloud/config/config.php 'memcache.local' => '\OC\Memcache\Redis', 'memcache.locking' => '\\OC\\Memcache\\Redis', 'redis' => array( 'host' => 'localhost', 'port' => 6379, ),sudo systemctl restart apache2 /nginx sudo systemctl restart php7.2-fpm
https://markus-blog.de/index.php/2018/09/06/how-to-install-nextcloud-14-on-ubuntu-18-04-with-php7-2-fpm-apache2-and-http-2/