So, I’m brand new to dealing with linux, so still a lot to learn.
I got QuickBox on my server, logged into the dashboard, and installed Sonarr successfully.
The issue is when I click on Sonarr it gives me a Proxy Error:
"Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /sonarr.
Reason: DNS lookup failure for: localhost"
So I’m lost here as to what to do to be able to access Sonarr (same issue for SABnzbd)
…Anyone??
Hello,
Could you please show us the return of this command please?
cat /etc/hosts (if error please use sudo)
Could you please try ping localhost and tell us the result?
This is the result:
ping: unknown host localhost
Okay so modify your /etc/hosts file (sudo nano /etc/hosts) and add this line : 127.0.0.1 localhost
Retry to ping localhost and try to access Sonarr again.
Okay, that seems to have done the trick!
I added the line “127.0.0.1 local host” directly under the line “127.0.0.1 mydomain.com”
I did the “ping localhost” and it seemed to keep continually pinging, I’m not sure if that’s what is supposed to happen, but it kept returning a line
“64 bytes from mydomain.com (127.0.0.1): icmp_seq=117 ttl=64 time=0.036 ms”
with the time different each time.
After that, I rebooted the server, logged into the Quickbox dashboard, tried Sonarr and it worked.
Well done 
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