Error Code 500

Toriko

I am installing Flarum with Nginx, when I visit forums.mydomain.com, it returns 500 error.
Following is nginx error log:
rewrite or internal redirection cycle while internally redirecting to "/index.php"

clarkwinkelmann

Toriko You might have an issue with your nginx config. Did you include Flarum's config file as described in the install, did you write your own config ? Did you alter the default php-fpm config from your host ?

Have you tried any fix from the Stack Overflow answer for that exact error message ? https://stackoverflow.com/questions/18321325/nginx-rewrite-or-internal-redirection-cycle-while-internally-redirecting-resul

Maybe share the config with us if you can so we can take a look.

Toriko

following is my /etc/nginx/sites-enabled/forums.mydomain.com file:

server {
        listen 80;

        root /path/to/flarum/public;

        server_name forums.mydomain.com;

        include /path/to/flarum/.nginx.conf;
}

clarkwinkelmann

Toriko it looks like you don't have any configuration to let php handle php files (usually php-fpm but I'm not sure how many different configs are possible under nginx). That's not part of the Flarum nginx config and you should keep whatever was configured by default by your host.

That part of the config might look something like this:

location ~ \.php$ {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
    fastcgi_index index.php;
    include fastcgi_params;
}

You might be able to copy that missing config from another site on the same host. If you don't know what to look for let us know what kind of host you have (self installed VPS, managed VPS, shared hosting ?)

Toriko

clarkwinkelmann I am using Google Cloud Platform VM instance Ubuntu16.04 1cpu and 3.75GB RAM.
After add following code block to my /etc/nginx/sites-enabled/forums.mydomain.com and reload nginx:
location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass unix:/var/run/php/php7.2-fpm.sock; fastcgi_index index.php; include fastcgi_params; }
I visit my forum, not error this time, but I get blank page, and no error log in Nginx.

clarkwinkelmann

Toriko I guess we can call that making progress 😅

Did you just copy my code or do you know for sure you have php7.2-fpm installed ?

Can you check the php logs (fpm should have its own log) and the Flarum log (<flarum folder>/storage/logs)

Toriko

clarkwinkelmann I copy your code, and install php7.2-fpm.
I have check /var/log/php7.2-fpm.log, no error, and flarum log is empty.

Toriko

Toriko I don't know php, just follow document, maybe I miss something...

clarkwinkelmann

Toriko I'm running out of ideas. There should be a message somewhere.

Maybe try altering the index.php or add another php file that should return some text and check if this is correctly handled by php-fpm, so we can figure if it's PHP related or Flarum related.

Did you follow a guide to install that server ? Didn't you already install some form of PHP along with nginx ?

Were you really able to install php7.2 on Ubuntu 16.04 ? The default repos certainly don't have it, did you add a repo for more recent php ? My example config is copied from my server running php version 7.2, it might not apply to the php version you installed. But if that part is incorrect you should encounter a 500 error from nginx... That config goes inside the server directive, but again if you did not put it in the right place I'm sure you would be getting an error.

Doesn't hurt to do a full restart in any case.