If your backend is sensitive to keepalive traffic (mine are), then my
advice is to enable keepalives as far into your stack as you can.

i.e. I have nginx fronting haproxy and varnish, I enable keepalives to both
haproxy and varnish add have them add a "connection: close" header to their
backend requests. That keeps the backends happy but still lets the
frontends take advantage of connection reuse.

On Wed, Mar 9, 2016 at 2:15 AM, RemcoJanssen <nginx-forum@forum.nginx.org>
wrote:

> Hello, I am new to nginx and Speedgrade suggest I enable keepalive to
> enhance performance of my website(s).
>
> I've read*1 that enabling this is also a risk. What is the best practise?
>
> *1 https://www.nginx.com/blog/http-keepalives-and-web-performance/
>
> Posted at Nginx Forum:
> https://forum.nginx.org/read.php?2,265177,265177#msg-265177
>
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> nginx mailing list
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> http://mailman.nginx.org/mailman/listinfo/nginx
>
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