How to use $host variable in proxy_pass

Server NGINX
1

I want to use $host variable in proxy_pass. If directly hardcode
Hostname in proxy_pass it is working fine. But if I use variable $host
it is giving me “502 Bad Gateway”

server {
listen 80;
server_name “”;

    location / {
        proxy_pass https://cds.hh.net;            //working fine
        proxy_pass https://$host;                   //gives error.

And $host value is same like above hostname “cds.hh.net”
proxy_redirect off;
}

}

Thanks for help.

Posted at Nginx Forum:

2

Hi,

I want to use $host variable in proxy_pass. If directly hardcode
Hostname in proxy_pass it is working fine. But if I use variable $host
it is giving me “502 Bad Gateway”

Check your error.log, it will tell you that you’re missing “resolver”.

Best regards,
Piotr S. < [email protected] >

3

what should I specify in resolver?

Posted at Nginx Forum:

4

Hi,

resolver 127.0.0.1;
(…)
375#0: recv() failed (111: Connection refused) while resolving,
resolver: 127.0.0.1:53

That’s because you don’t have DNS resolver running on the localhost.

Point nginx to the DNS resolver you’re using (from /etc/resolv.conf).

Best regards,
Piotr S. < [email protected] >

5

I tried this,

server {
listen 80;
server_name “”;

location / {
resolver 127.0.0.1;

proxy_pass https://$host; //gives error. And $host value is same like
above hostname “cds.hh.net”
proxy_redirect off;
}

}

but still not working. If I check error log it says,

375#0: recv() failed (111: Connection refused) while resolving,
resolver: 127.0.0.1:53

Thanks for your help.

Hiren

Posted at Nginx Forum:

6

Thanks. It is working now.

Posted at Nginx Forum: