Issue
On CentOS 7
/etc/hosts:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.0.1 app1
Installed Nginx from package:
yum install nginx
In /etc/nginx/nginx.conf:
# ...
include /etc/nginx/conf.d/*.conf;
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
root /usr/share/nginx/html;
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
location / {
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
# ...
Created a new file under /etc/nginx/sites-available/ named myapp:
upstream app {
# Path to Unicorn SOCK file, as defined previously
server unix:///home/deploy/myapp/tmp/sockets/unicorn.sock;
}
server {
listen 192.168.0.1:80;
server_name app1;
# Application root, as defined previously
root /home/deploy/myapp/public;
try_files $uri/index.html $uri @app;
location @app {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app;
}
error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
Link it to /etc/nginx/sites-enabled/:
cd /etc/nginx/sites-enabled/
ln -s ../sites-available/myapp
Restart nginx:
service nginx restart
Then try to access url:
curl 192.168.0.1
Got error:
<html>
<head><title>403 Forbidden</title></head>
<body bgcolor="white">
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx/1.10.2</center>
</body>
</html>
I removed default index.html file under /usr/share/nginx/html path, so it got 403 Forbidden.
Nginx error log /var/log/nginx/error.log:
2017/07/25 03:35:59 [error] 8200#0: *1 directory index of "/usr/share/nginx/html/" is forbidden, client: 192.168.0.2, server: _, request: "GET / HTTP/1.1", host: "192.168.0.1"
Why it accessed default /usr/share/nginx/html/ path, but not new added myapp under /etc/nginx/sites-enabled/ directory?
Solution
The real problem is, the OS distribution version and package version, makes software different.
Attention: It's CentOS 7.3!
The method I used to install nginx was:
yum update
yum install epel-release
yum install nginx
Then, the nginx version maybe a little different from others like package on Ubuntu. So the usage is not the same, too.
Its directory is:
/etc/nginx/nginx.conf
/etc/nginx/conf.d/
# Notice, there aren't these directories exist!
/etc/nginx/sites-available/
/etc/nginx/sites-enabled/
So the usage is different and the following is necessary!
First, comment out the default setting in /etc/nginx/nginx.conf:
# server {
# listen 80 default_server;
# listen [::]:80 default_server;
# server_name _;
# root /usr/share/nginx/html;
#
# # Load configuration files for the default server block.
# include /etc/nginx/default.d/*.conf;
#
# location / {
# }
#
# error_page 404 /404.html;
# location = /40x.html {
# }
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# }
# }
Second, create the new config for application under /etc/nginx/conf.d/:
# File Name: rails.conf
upstream app {
# Path to Unicorn SOCK file, as defined previously
server unix:/home/deploy/myapp/tmp/sockets/unicorn.sock fail_timeout=0;
}
server {
listen 192.168.0.1:80;
server_name app1;
# Application root, as defined previously
root /home/deploy/myapp/public;
try_files $uri/index.html $uri @app;
location @app {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_set_header X-FORWARDED_PROTO https;
proxy_pass http://app;
}
error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
If exist default.conf under /etc/nginx/conf.d/, remove it.
Third, check syntax and restart nginx:
nginx -t
service nginx restart
It will access the path pointed to /home/deploy/myapp/public when run curl 192.168.0.1.
Answered By - cloud_cloud Answer Checked By - Dawn Plyler (WPSolving Volunteer)