Nginx, Codeigniter 404 error. Can't access index.php file - nginx

Question

I tried to find out the solution online but every solution is different. no one is working. I just migrated our web server from Apache to Nginx and I am getting 404 error. Here is the php info: http://likeopedia.net/info.php. If you visit main domain then you will see the error.
I am facing some serious problems for this setup. Our site is working on Apache server but not on Nginx.
here is nginx.conf file that I have changed a little bit.
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
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;
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;
include /etc/nginx/conf.d/*.conf;
autoindex on;
index index.php;
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name localhost;
root /var/www/html;
include /etc/nginx/default.d/*.conf;
index index.php index.html index.htm;
rewrite_log on;
location / {
try_files $uri $uri/ /index.php;
location = /index.php {
fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
fastcgi_param SCRIPT_FILENAME /var/www/html$fastcgi_script_name;
include fastcgi_params;
}
}
location ~ \.php$ {
return 444;
}
and here the codeigniter confiq.php file:
$config['base_url'] = 'http://likeopedia.net';
$config['abs_path'] = $_SERVER['DOCUMENT_ROOT'].'/';
$config['logout_url'] = 'http://likeopedia.net';
$config['index_page'] = '';
$config['uri_protocol'] = 'AUTO';
$config['url_suffix'] = '';
It is now in development mode.

Answer 1

You have enclosed the location = /index.php inside the location /. Try changing the location / so that it does not enclose location = /index.php.
It should look like this:
location / {
try_files $uri $uri/ /index.php;
}
location = /index.php {
fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock;
fastcgi_param SCRIPT_FILENAME /var/www/html$fastcgi_script_name;
include fastcgi_params;
}
location ~ \.php$ {
return 444;
}
Give it a try and let us know if this helps.
Thank for the feedback - here is what I think you can try as well:
Remove the location = /index.php and instead try the following configuration for the location ~\.php$ declarative:
location ~ \.php$ {
try_files $uri =404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}