Nginx as reverse proxy scalability

Valentin V. Bartenev vbart at
Tue May 10 15:43:04 UTC 2016

On Tuesday 10 May 2016 17:37:55 Artur wrote:
> Thanks for your answer.
> Le 10/05/2016 à 17:04, Maxim Dounin a écrit :
> > As long as you are using TCP/IP and have only one backend (ip + 
> > port), and only one local address on nginx side, then you are 
> > limited by the number of local ports nginx can use.
> I currently have nginx running on the same host that my backends.
> I have 4 of them listening on different ports on
> In this situation may I expect 4 times 65000 simultaneous connections ?
> > - add more local addresses on nginx side and use proxy_bind to 
> >   balance users between these addresses.
> Yes, I've seen this, however I didn't catch how to dynamically assign a
> value to proxy_bind from a pool of IP addresses in nginx (not Nginx Plus).

The all proxy_bind functionality is available in the open source
version of nginx.  See the docs:

  wbr, Valentin V. Bartenev

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