php -v
PHP 8.1.0 (cli) (built: Nov 25 2021 20:22:03) (NTS)
Zend Engine v4.1.0,
Copyright (c) Zend Technologies with Zend OPcache v8.1.0,
Copyright (c), by Zend Technologies

lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3
LTS Release: 20.04

nginx -v
nginx version: nginx/1.18.0 (Ubuntu)

sudo nano /var/www/html/limesurvey/application/config/config.php
'urlManager' => array(
'urlFormat' => 'path',
'rules' => array(
// You can add your own rules here
),
'showScriptName' => false,
)

Server{
  set $host_path /var/www/html/limesurvey;
  server_name my-Domain.eu; # managed by Certbot
  root /var/www/html/limesurvey;
  charset utf-8;
  client_max_body_size 100M;
  index index.php;
  try_files $uri /index.php?r=$uri&$args;
  #Disallow reading inside php script directory, see issue with debug > 1 on note
  location ~ ^/(application|docs|framework|locale|protected|tests|themes/\w+/views)
  {
    deny all;
  }
  # Allow access to well-known directory, different usage, for example ACME Challenge for Let's Encrypt
  location ~ /\.well-known
  {
    allow all;
  }
  # Deny all attempts to access hidden files
  # such as .htaccess, .htpasswd, .DS_Store (Mac).
  location ~ /\.
  {
    deny all;
  }
  #Disallow direct read user upload files
  location ~ ^/upload/surveys/.*/fu_[a-z0-9]*$
  {
    return 444;
  }
  #Disallow uploaded potential executable files in upload directory
  location ~* /upload/.*\.(pl|cgi|py|pyc|pyo|phtml|sh|lua|php|php3|php4|php5|php6|pcgi|pcgi3|pcgi4|pcgi5|pcgi6|icn)$
  {
    return 444;
  }
  #avoid processing of calls to unexisting static files by yii
  location ~ \.(js|css|png|jpg|gif|swf|ico|pdf|mov|fla|zip|rar)$
  {
    try_files $uri =404;
  }
  location ~ \.php$
  {
    fastcgi_split_path_info ^(.+\.php)(.*)$;
    try_files $uri index.php;
    fastcgi_pass unix:/var/run/php/php8.1-fpm.sock;
    fastcgi_index index.php;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param SCRIPT_NAME $fastcgi_script_name;
  }
  listen [::]:443 ssl ipv6only=on; # managed by Certbot
  listen 443 ssl; # managed by Certbot
  ssl_certificate /etc/letsencrypt/live/my-Domain.eu/fullchain.pem; # managed by Certbot
  ssl_certificate_key /etc/letsencrypt/live/my-Domain.eu/privkey.pem; # managed by Certbot
  include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
  ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}