Nginx is throwing 'no input file specified' when accessing siteb.com/blog - php

Question

Ive looked at this for hours, but am still not getting where I need to get to despite doing a lot of hours googling.Nginx is throwing no input file specified
my config in /etc/nginx/sites-enabled/siteb looks like:
upstream site {
#flask app
server 127.0.0.1:8001;
}
upstream siteb-blog {
#wordpress php
server unix:/var/run/php5-fpm.sock;
}
server {
server_name siteb.com;
listen 80;
root /home/www/flask-deploy/siteb;
location ~* ^blog/ {
try_files $uri $uri/ /blog/index.php?$query_string;
root /home/www/flask-deploy/siteb-blog;
location ~ \.php$ {
fastcgi_pass siteb-blog;
fastcgi_param SCRIPT_FILENAME $request_filename;
include fastcgi_params;
}
}
location / {
try_files #proxy #proxy;
}
location #proxy {
internal;
proxy_pass http://siteb;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /static {
alias /home/www/flask-deploy/siteb/static/;
}
}
However, when i try to access mysite.com/blog or mysite.com/blog/info.php i get a 404 error.
ive checked error.log and it doesnt show any errors. access.log, just shows:
[16/Dec/2016:16:11:56 -0500] "GET /blog/index.php HTTP/1.1" 404 209 "-" "Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:50.0) Gecko/20100101 Firefox/50.0"
My siteb.com works fine. siteb.com/blog does not.
im specifically trying to get siteb-blog working at siteb.com/blog.
Thank you in advance!

Answer 1

You have WordPress installed under a directory called siteb-blog and would like to access it with a URI prefix of /blog/. One of your problems is that the $request_filename is constructed from the root and URI, so that the /blog segment becomes part of the pathname. See this document for details.
The simple solution with static files is to use the alias directive, but I try to avoid using it with try_files because of a long standing bug.
My preferred solution is to silently (using internal rewrite) map the /blog URI to /siteb-blog, then continue to use root as normal.
For example:
server {
server_name siteb.com;
listen 80;
location /blog {
rewrite ^/blog(.*)$ /siteb-blog$1 last;
}
location /siteb-blog {
root /home/www/flask-deploy;
try_files $uri $uri/ /blog/index.php?$query_string;
location ~ \.php$ {
try_files $uri /blog/index.php;
fastcgi_pass siteb-blog;
fastcgi_param SCRIPT_FILENAME $request_filename;
include fastcgi_params;
}
}
location / {
proxy_pass http://siteb;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /static {
root /home/www/flask-deploy/siteb;
}
}
You can make the location /siteb-blog internal, by adding the internal directive. This will make it inaccessible directly.
A root statement in both the server block and the location /static block is unnecessary - it only needs to appear once.
The alias was unnecessary - root is preferred. See this document for details.
The named location was unnecessary - merged with location /
Finally, WordPress needs to know that it is hosted under /blog, otherwise it cannot find its resource files (css & js). You will need to set the values for WP_SITEURL and WP_HOME either using wp-config.php or using the WordPress ⇒ DashBoard ⇒ Settings ⇒ General page.