Zabbix frontend behind nginx proxy

[fvdhoeven]

This is my first post so forgive me if I did something wrong.

I currently have the following configuration:
A proxy host in DMZ running Nginx.
A server running zabbix frontend and zabbix server.

The nginx is configured as follows:
server {
listen 10.10.1.202:443 ssl;

server_name zabbix.vermont24-7.com 85.17.0.84;

ssl_certificate /etc/nginx/conf.d/certs/zabbix.vermont247.com.cer;
ssl_certificate_key /etc/nginx/conf.d/certs/zabbix.private.ssl.key;
location / {
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://10.10.2.102;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}

So all request to zabbix.vermont24-7.com are forwarded to a server running the zabbix frontend on 10.10.2.102

Everything is working fine except 1 thing within the zabbix frontend.
When i'm configuring items for a host, I cannot access the second page. A links in the zabbix frontend are something like this : https://zabbix.vermont24-7.com/zabbi...6c6b19956f4b4d

Except when I want to go to the second page of the item list. This is presented like this:

http://10.10.2.102/zabbix/items.php?filter_set=1&hostid=10088&sid=066c6b19956f4b4d&page=2

And offcourse I cannot access the internal IP number via a web browser. I have been unable to find were this IP is coming from. Everything else on the frontend works fine and I was hoping that someone on this forum knows how to fix this.

[fvdhoeven]

Fixed it!

I finally figured it out myself. Thanks for the great response

But for soneone with the same issue, i'll post me solution.
I just had to add this to the nginx config:
proxy_set_header Host $host;

That did the job.