codeigniter not working in nginx(running on localhost), linux mint - php

Question

I have installed LEMP on my linux mint system.
nginx is configured to work with php5-fpm sockets.
When I run codeigniter in my system index.php(link: localhost/ci/index.php) shows up, but when I try to open any of controller, say blog(link localhost/ci/index.php/blog) nginx gives 404 error message.
Following is my nginx configuration placed in file /etc/nginx/sites-avaliable/default
server {
listen 127.0.0.1:80;
listen [::]:80 default_server ipv6only=on;
root /home/scoders/Workspace/public_html;
index index.html index.htm index.php;
autoindex on;
server_name localhost;
location / {
try_files $uri $uri/ /index.php?$args;
}
# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
location ~ \.php$ {
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /home/scoders/Workspace/public_html/ci/index.php;
#fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
Contents of nginx.conf are as follows:
user scoders;
worker_processes 4;
pid /run/nginx.pid;
events {
worker_connections 768;
}
http {
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;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
gzip on;
gzip_disable "msie6";
xml+rss text/javascript;
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
include /etc/nginx/sites-enabled/*.conf;
server_names_hash_bucket_size 64;
}
My log gives following error:
2016/03/14 14:38:38 [error] 23239#0: *1 FastCGI sent in stderr:
"Primary script unknown" while reading response header from upstream,
client: 127.0.0.1, server: localhost, request: "GET /ci/index.php/ci
HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "localhost"
I have tried these links but no luck:
Codeigniter | NGINX
CodeIgniter NGINX Rewrite Rules

Answer 1

Either /home/scoders/Workspace/public_html/ci/index.php is inaccessible for some reason or SCRIPT_FILENAME is being overridden in include fastcgi_params;
As a general rule, you should include first and fastcgi_param after.
For example:
location ~ \.php$ {
fastcgi_pass unix:/var/run/php5-fpm.sock;
include fastcgi_params;
fastcgi_param REQUEST_URI $request_uri;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
Also, if your default URI is /ci/index.php and not /index.php, change your location / to:
location / {
try_files $uri $uri/ /ci/index.php?$args;
}