502 bad mvc core gateway application on CentOS
I made a site in MVC Core and tried to publish it online on CentOS 7 VPS. It works well, when I twist it, it responds. Then I installed nginx and it showed the default page when trying to use it from my computer. Then I changed nginx.conf to below and all I get is 502 bad gateways. In the nginx log, I only see that a get request was received. Any ideas what should I check?
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
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;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
# include /etc/nginx/conf.d/*.conf;
server {
listen 80;
location / {
proxy_pass http://localhost:5000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection keep-alive;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
}
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I tried apache and had the same problem. Then I found a solution, you need to set httpd_can_network_connect.
http://sysadminsjourney.com/content/2010/02/01/apache-modproxy-error-13permission-denied-error-rhel/
A did not find the error message on the audit blog that the author was talking about, but I tried his solution and it worked.
I have been using centos for 4 days and the second time I need to do a bit of work to fix the problem. These solutions are pretty hidden on the internet and most of the articles on this area don't mention it, so I wasted a lot of time. Therefore, I share the author's opinion about SELinux. I will probably try another Linux distro. Interestingly, too, I followed the official microsoft tutorial "Set up a hosting environment for ASP.NET Core on Linux with Apache and deploy it". The operating system they are using is also CentOS. And he doesn't mention that bit.
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