Nginx SSL Can't point sub-domain to server's IP

Hello,

When I pointed the subdomain to the server's IP and accessed the subdomain, it was immediately redirected to the VPS's name. I named VPS like vps-centos-7.6-64bit, so the browser displayed an error immediately.

It seems that I am having this problem after installing phpmyadmin addon. Because I tried on another server without phpmyadmin installed, everything is fine.

• CentOS Version: CentOS 7.6 64bit
• Centmin Mod Version Installed: 123.09beta01

---

 

Thank you for your feedback!

I have a website running normally on the domain myweb.com with HTTPS. I want to point the subdomain beta.myweb.com to server, so this happens.

I realized that, when running the command curl -I https://beta.myweb.com, the result is as follows:

Code:

HTTP/1.1 302 Moved Temporarily
Date: Mon, 27 Apr 2020 13:43:12 GMT
Content-Type: text/html
Connection: keep-alive
Set-Cookie: __cfduid=d597053bbc2117de242e94422477558dc1587994992; expires=Wed, 27-May-20 13:43:12 GMT; path=/; domain=.myweb.com; HttpOnly; SameSite=Lax; Secure
Location: http://vps-centos-7.6-64bit/
X-Powered-By: centminmod
X-Frame-Options: SAMEORIGIN
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 58a8f89ccb3a0227-SIN
cf-request-id: 025d79b5fb000002273ba3d200000001

vps-centos-7.6-64bit is exactly my server's hostname. Even if I haven't created a new Nginx vhost site via centmin.sh menu option 2, the redirect happened.

And this is the result when I run the command line dig + short A @ 8.8.8.8 beta.myweb.com

Code:

104.31.75.156
104.31.74.156

 

Thank you for your support!

I want beta.myweb.com to be a separate subdomain nginx site.

When I pointed beta.myweb.com to the server, and yet to create that subdomain nginx vhost site, I tried to access beta.myweb.com on a browser, and the redirect occurred.

Then I created the subdomain nginx vhost site via centmin.sh menu option 2 but the redirect still happens.

This is the content of file beta.myweb.com.conf in /usr/local/nginx/conf/conf.d/

Code:

# Centmin Mod Getting Started Guide
# must read http://centminmod.com/getstarted.html

# redirect from non-www to www
# uncomment, save file and restart Nginx to enable
# if unsure use return 302 before using return 301
#server {
#            listen   80;
#            server_name beta.myweb.com;
#            return 301 $scheme://www.beta.myweb.com$request_uri;
#       }

server {
 
  server_name beta.myweb.com www.beta.myweb.com;

# ngx_pagespeed & ngx_pagespeed handler
#include /usr/local/nginx/conf/pagespeed.conf;
#include /usr/local/nginx/conf/pagespeedhandler.conf;
#include /usr/local/nginx/conf/pagespeedstatslog.conf;

  #add_header X-Frame-Options SAMEORIGIN;
  add_header X-Xss-Protection "1; mode=block" always;
  add_header X-Content-Type-Options "nosniff" always;
  #add_header Referrer-Policy "strict-origin-when-cross-origin";
  #add_header Feature-Policy "accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'";

  # limit_conn limit_per_ip 16;
  # ssi  on;

  access_log /home/nginx/domains/beta.myweb.com/log/access.log combined buffer=256k flush=5m;
  error_log /home/nginx/domains/beta.myweb.com/log/error.log;

  include /usr/local/nginx/conf/autoprotect/beta.myweb.com/autoprotect-beta.myweb.com.conf;
  root /home/nginx/domains/beta.myweb.com/public;
  # uncomment cloudflare.conf include if using cloudflare for
  # server and/or vhost site
  #include /usr/local/nginx/conf/cloudflare.conf;
  include /usr/local/nginx/conf/503include-main.conf;

  location / {
  include /usr/local/nginx/conf/503include-only.conf;

# block common exploits, sql injections etc
#include /usr/local/nginx/conf/block.conf;

  # Enables directory listings when index file not found
  #autoindex  on;

  # Shows file listing times as local time
  #autoindex_localtime on;

  # Wordpress Permalinks example
  #try_files $uri $uri/ /index.php?q=$uri&$args;

  }

 
  include /usr/local/nginx/conf/staticfiles.conf;
  include /usr/local/nginx/conf/php.conf;
 
  include /usr/local/nginx/conf/drop.conf;
  #include /usr/local/nginx/conf/errorpage.conf;
  include /usr/local/nginx/conf/vts_server.conf;
}

UPDATE:

I tried pointing 2 more subdomains to the server, the result was as follows:

Subdomain beta2.myweb.com: Redirect to hostname.
Subdomain beta.myweb2.com: It's fine. I can see the Centmin Mod Nginx Test Page.

I don't know what happened with the myweb.com's configuration.

 

I have found the problem is in main domain's ssl configuration, but don't know how to fix:

I'm using Full mode on Cloudflare's SSL configuration (Encrypts end-to-end, using a self signed certificate on the server) for the domain myweb.com, then the redirect of subdomain happen.

If I switch to Flexible mode (Encrypts traffic between the browser and Cloudflare), the subdomain pointing works well.

Do you have any idea for this problem?

 

I solved the problem by enable ssl for the subdomain beta.myweb.com in /usr/local/nginx/conf/conf.d/beta.myweb.com.conf as follows:

Code:

server {
             listen 80;
             server_name beta.myweb.com;
             return 301 $ scheme: //beta.myweb.com$request_uri;
}

server {
            listen 443;
            ssl on;
            ssl_certificate /home/nginx/domains/myweb.com/public/certificate.pem;
            ssl_certificate_key /home/nginx/domains/myweb.com/public/cert_key.pem;
}

Thank you, eva2000, wish you health and happiness!