PHP doesn't work with https, instead it download file - php

Question

I have nginx as a webserver with PHP-fpm. I can successfully see my website using http but if I use https I will download the index page and the page will not be shown.
My nginx.conf
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
http {
server_tokens off;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
fastcgi_read_timeout 300s;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
client_max_body_size 2M;
include /etc/nginx/conf.d/*.conf;
}
server {
listen 443 ssl;
server_name www.domain.net;
root /usr/share/nginx/html;
add_header X-Frame-Options "SAMEORIGIN";
ssl_certificate /etc/letsencrypt/live/www.domain.net/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/www.domain.net/privkey.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
ssl_prefer_server_ciphers on;
location / {
index index.php;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
}
And conf.d/default.conf
server {
listen 80;
server_name www.domain.net;
root /usr/share/nginx/html;
index index.php index.html index.htm;
location / {
try_files $uri $uri/ =404;
}
error_page 404 /404.html;
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}

Answer 1

Your php location tag only exists in the listen 80 server block.
So if the request is sent to the 443 server block, it doesn't handle any php files. You should add the same php block to the 443 server block;
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
http {
server_tokens off;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
fastcgi_read_timeout 300s;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
client_max_body_size 2M;
include /etc/nginx/conf.d/*.conf;
}
server {
listen 443 ssl;
server_name www.domain.net;
root /usr/share/nginx/html;
add_header X-Frame-Options "SAMEORIGIN";
ssl_certificate /etc/letsencrypt/live/www.domain.net/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/www.domain.net/privkey.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
ssl_prefer_server_ciphers on;
location / {
index index.php;
}
# NEW
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
## NEW
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
}