Can't access nginx server from outside [closed] - nginx

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I recently had to set up a nginx server on a centOS 7 server.
In order to run the dataiku software.
Every thing seems to run fine but once i try to access the pages i get absolutely nothing.
With elinks in local i manage to get the nginx default web page but not from my browser so i think it comes frommy nginx configuration.
here is my nginx.conf :
user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
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;
keepalive_timeout 65;
#gzip on;
include /etc/nginx/conf.d/*.conf;
}
And here is the default.conf included file :
server {
listen 80 default;
server_name _;
#charset koi8-r;
#access_log /var/log/nginx/log/host.access.log main;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
I really need this server running properly and being accessible do you have any idea ?
Thank you for reading.

Answer 1

you should add a new rule on public zone, because CentOS 7 has a firewalld.
Try:
firewall-cmd --zone=public --add-service=http
and go head!

Answer 2

Add the rule to the permanent set and reload FirewallD:
sudo firewall-cmd --zone=public --add-service=http --permanent
sudo firewall-cmd --reload
That should work!

Answer 3

You missed proxy_pass configuration which is actually translate all requests from backend to the outside via HTTP port 80 in your case:
server {
# Host/port on which to expose Data Science Studio to users
listen 80;
server_name _;
location / {
# Base url of the Data Science Studio installation
proxy_pass http://DSS_HOST:DSS_PORT/;
proxy_redirect off;
# Allow long queries
proxy_read_timeout 3600;
proxy_send_timeout 600;
# Allow large uploads
client_max_body_size 0;
# Allow protocol upgrade to websocket
proxy_http_version 1.1;
proxy_set_header Host $http_host;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
Official documentation is pretty clear on that: http://doc.dataiku.com/dss/latest/installation/reverse_proxies.html
Make sure you have uptodated Nginx to be able to serve WebSocket requests.