Hello everyone,
I have got a similiar issue, but my setup is a bit different:
- Raspberry PI 3B+
- Nginx 1.10.3
- PHP 7.3
I would prefer to use this config since the RPI is not so powerful and theses elements should be more efficient.
I have followed this documentation:
https://www.c-rieger.de/nextcloud-installation-guide-ubuntu/
and for the nginx configuration I have this:
upstream php-handler {
server unix:/var/run/nextcloud.sock;
}
server {
listen 80;
listen [::]:80;
server_name nextcloud.mycloud.com;
return 301 https://$server_name$request_uri;
}
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name nextcloud.mycloud.com;
# Path to the root of your installation
root /var/www/nextcloud/;
ssl on;
ssl_certificate /etc/letsencrypt/live/nextcloud.mycloud.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/nextcloud.mycloud.com/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/live/nextcloud.mycloud.com/chain.pem;
#ssl_dhparam /etc/ssl/certs/dhparam.pem;
ssl_session_cache shared:SSL:1m;
ssl_session_timeout 1440m;
ssl_buffer_size 8k;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'kEECDH+ECDSA+AES128 kEECDH+ECDSA+AES256 kEECDH+AES128 kEECDH+AES256 kEDH+AES128 kEDH+AES256 DES-CBC3-SHA +SHA !aNULL !eNULL !LOW !kECDH !DSS !MD5 !EXP !PSK !SRP !CAMELLIA !SEED';
ssl_prefer_server_ciphers on;
ssl_stapling on;
ssl_stapling_verify on;
# Add headers to serve security related headers
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header X-Robots-Tag none;
add_header X-Download-Options noopen;
add_header X-Permitted-Cross-Domain-Policies none;
add_header Strict-Transport-Security 'max-age=31536000; includeSubDomains;';
location = /robots.txt {
allow all;
log_not_found off;
access_log off;
}
location = /.well-known/carddav {
return 301 $scheme://$host/remote.php/dav;
}
location = /.well-known/caldav {
return 301 $scheme://$host/remote.php/dav;
}
# set max upload size
client_max_body_size 512M;
fastcgi_buffers 64 4K;
# Enable gzip but do not remove ETag headers
gzip on;
gzip_vary on;
gzip_comp_level 4;
gzip_min_length 256;
gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
location / {
rewrite ^ /index.php$uri;
}
location ~ ^/.well-known/acme-challenge/* {
allow all;
}
location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)/ {
deny all;
}
location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) {
deny all;
}
location ~ ^/(?:index|remote|public|cron|core/ajax/update|status|ocs/v[12]|updater/.+|ocs-provider/.+).php(?:$|/) {
fastcgi_split_path_info ^(.+.php)(/.*)$;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param HTTPS on;
#Avoid sending the security headers twice
fastcgi_param modHeadersAvailable true;
fastcgi_param front_controller_active true;
fastcgi_pass php-handler;
fastcgi_intercept_errors on;
fastcgi_request_buffering off;
fastcgi_read_timeout 300;
}
location ~ ^/(?:updater|ocs-provider)(?:$|/) {
try_files $uri/ =404;
index index.php;
}
# Adding the cache control header for js and css files
# Make sure it is BELOW the PHP block
location ~* .(?:css|js|woff|svg|gif)$ {
try_files $uri /index.php$uri$is_args$args;
add_header Cache-Control "public, max-age=15778463";
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header X-Robots-Tag none;
add_header X-Download-Options noopen;
add_header X-Permitted-Cross-Domain-Policies none;
# Optional: Don't log access to assets
access_log off;
}
location ~* .(?:png|html|ttf|ico|jpg|jpeg)$ {
try_files $uri /index.php$uri$is_args$args;
# Optional: Don't log access to other assets
access_log off;
}
}
When I go to the main webpage, the server provide the raw PHP file for download.
It seems that Nginx didnot linked the php module.
Any help could be greatfull 
