nginx forward proxy - 502 bad gateway

[Panagiotis Theodoropoulos]

I have install nginx forward proxy in two Ubuntu 12.04 servers with the
following configuration.

server {
listen 8080;

location / {
resolver 8.8.8.8;
proxy_pass http://$http_host$uri$is_args$args;
}
}


After this I use the two servers as proxy on firefox.
The one server works fine.

But on the second server I get the message 502 bad gateway.

This server is behind a cisco firewall with port 8080 open. Where is the
problem?

The line:

proxy_pass http://$http_host$uri$is_args$args;

has problem with firewalls? or it is something else?


-- 
Παναγιώτης Θεοδωρόπουλος
Panagiotis Theodoropoulos
<tpanagiotis at gmail.com>
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