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I'm running a Django website with nginx via fastcgi running on a TCP port 9000 on localhost. Everything appears to work correctly, but the error log is filled with lines like these:

2012/11/19 14:05:07 [error] 21849#0: *2990 connect() failed (111: Connection refused) while connecting to upstream, client: 71.249.131.121, server: localhost, request: "GET /charity/ajax/preload_project/ HTTP/1.1", upstream: "fastcgi://127.0.1.1:9000", host: "www.dailygiver.org", referrer: "http://www.dailygiver.org/charity/browse/"

The strange part is it still seems to serve the request just fine. Netstat confirms that the fastcgi process is running and listening as expected:

tcp 0 0 127.0.0.1:9000 0.0.0.0:* LISTEN 31455/python

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up vote 3 down vote accepted

127.0.0.1 is not the same as 127.0.1.1.

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Oh duh. I looked at it a bunch of times and never noticed that it's 1.1, not 0.1. Apparently the hosts file has an entry for 127.0.1.1 as a workaround for a bug: serverfault.com/questions/363095/…. Removing that entry from hosts resolved the issue. –  Vinay Pai Nov 19 '12 at 20:29
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