(13: Permission denied) while connecting to upstream while configuring Ngnix

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While configuring Bitbucket to use Ngnix as a reverse proxy by following Securing Bitbucket Server behind nginx using SSL  the following error appears in Ngnix error log:

2016/02/03 17:47:37 [crit] 26894#0: *1 connect() to failed (13: Permission denied) while connecting to upstream, client:, server: bitbucket.example.com, request: "GET /favicon.ico HTTP/1.1", upstream: "", host: "bitbucket.example.com", referrer: "http://bitbucket.example.com/"



  • Any Linux distribution that ships with SELinux 

Diagnostic Steps

Check for errors in the SELinux logs:

sudo cat /var/log/audit/audit.log | grep nginx | grep denied


SELinux prevent connections on port 7990 for the nginx process.


Execute the following command in your server:

sudo cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx
sudo semodule -i mynginx.pp

Refer to http://stackoverflow.com/questions/23948527/13-permission-denied-while-connecting-to-upstreamnginx for more info.

Last modified on Nov 2, 2018

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