How do I set Keep Alive

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

*1 Using NGINX as an Accelerating Proxy for HTTP Servers

Posted at Nginx Forum:

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
haproxy and varnish add have them add a “connection: close” header to
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
[email protected]