I got strange Nginx behavior while trying to make site config. I need Nginx to use article.php in case the file is missing on server. But it works strange. If the query is example.com/snaff, it gets redirected to article.php. But if the query is example.com/snaff.php it just throws 404 error in browser.
I use Ubuntu 20.04 + Nginx 1.18.0. Earlier the same config worked ok on Ubuntu 18.04 + Nginx 1.19.0.
Can't understand what's going wrong.
Here is the config code.
server { listen 80; server_name example.com www.example.com; #return 404; # managed by Certbot if ($host = www.example.com) { return 301 https://$host$request_uri; } # managed by Certbot if ($host = example.com) { return 301 https://$host$request_uri; } # managed by Certbot } server { listen 443 ssl http2; server_name example.com www.example.com; root /var/www/example.com/public_html/; index index.php index.html index.htm; ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot ssl_certificate_key /etc/letsencrypt/live/example.com/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 access_log /var/log/nginx/example_access.log; error_log /var/log/nginx/example_error.log error; etag on; gzip on; gzip_comp_level 5; gzip_min_length 10; gzip_proxied any; gzip_types *; gzip_disable "msie6"; client_max_body_size 15m; location ~ \.php$ { include snippets/fastcgi-php.conf; fastcgi_pass unix:/var/run/php/php7.4-fpm.sock; add_header Cache-Control "no-store, no-cache, must-revalidate"; } location ~ /\.ht { deny all; } location / { # First attempt to serve request as file, then # as directory, then fall back to displaying a 404. try_files $uri $uri/ /article.php; } } 
