upstream prematurely closed connection while reading response header from upstream Error

[AustinC345]

I am getting this error from Nginx_1
upstream prematurely closed connection while reading response header from upstream, client: 192.168.1.232, server: api.openmhz.test, request: "POST /cornet/upload HTTP/1.1", upstream: "http://172.22.0.5:3005/cornet/upload"

[tadscottsmith]

If you're using the OpenMhz plugin and you're in test mode without certs, you have to modify the OpenMHz uploader to prevent it from trying to verify the certs.

Try adding this to the plugin and recompiling trunk-recorder:

curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);

[AustinC345]

Thanks for the quick reply but I am not using trunk-recorder I am using sdrtrunk 0.6.1. Sdrtrunk says its connected. But in the web GUI there is nothing.

[tadscottsmith]

I think I had the same problem with SDRTrunk. You might have to modify something around here to turn off the certificate verification. I think I just gave up and created certs, but I'm pretty sure that was the error that I was getting.

https://github.com/DSheirer/sdrtrunk/blob/11abb87177460819e2cba558a2007c4b9bd184d1/src/main/java/io/github/dsheirer/audio/broadcast/openmhz/OpenMHzBroadcaster.java#L289-L294

[tadscottsmith]

I had a few minutes to test this again.

In SDRTrunk, if you modify the following line:

https://github.com/DSheirer/sdrtrunk/blob/11abb87177460819e2cba558a2007c4b9bd184d1/src/main/java/io/github/dsheirer/audio/broadcast/openmhz/OpenMHzBroadcaster.java#L90

Change .version(HttpClient.Version.HTTP_2) to .version(HttpClient.Version.HTTP_1_1) and SDRTrunk should successfully upload without verifying the certificate.