Using the official YUM repo http://nginx.org/packages/centos/6/$basearch/ they don't build with the `ngx_http_spdy_module` enabled. Is there a way to get it, without doing a custom compile? I'd like to continue to use the YUM package manager.
"This module is not built by default, it should be enabled with the --with-http_spdy_module configuration parameter."
So unless you go with an unofficial binary, you'll have to compile it in yourself.
But really, the burden of a 'custom compile' is small. Nginx configuration is simple, it has minimal dependencies, and it builds quickly. You will need zlib-dev and openssl-dev.
EDIT: looks like spdy (on same port as https) requires openssl >= 1.0.1. centos has 1.0.0. nuts.