For those who don't read -devel but still want to try the patch:

http://nginx.org/patches/spdy/

-------- Original Message --------
Subject: Announcing SPDY draft 2 implementation in nginx
Date: Fri, 15 Jun 2012 16:40:57 +0400
From: Valentin V. Bartenev <ne@vbart.ru>
Reply-To: nginx-devel@nginx.org
To: nginx-devel@nginx.org

We are pleased to announce the first beta version of SPDY draft 2
module for nginx.

It is currently distributed as a patch for nginx 1.3.x development
version.

For more information about SPDY protocol specification please check
http://www.chromium.org/spdy/spdy-protocol

Known problems and limitations of this revision:

- server push is not supported;

- post_action directive is not supported for SPDY connections;

- rate limiting is not supported for SPDY connections;

- SSL buffer is switched off.

We will be working on improving SPDY support during the next few
months with the goal of eventually integrating it fully into the
main nginx code. Expect frequent updates about this development,
and please report your experiences, and send the feedback to nginx
development mailing list nginx-devel@nginx.org (check
http://mailman.nginx.org/mailman/listinfo/nginx-devel).

Configuration and installation instructions are below.

How to build nginx/spdy binary:

1. Install OpenSSL 1.0.1, it's required because SPDY module uses
Next Protocol Negotiation TLS extension.

2. Download nginx 1.3.x tar-gzip package (check
http://nginx.org/en/download.html)

$ wget http://nginx.org/download/nginx-1.3.1.tar.gz

3. Unpack nginx-1.3

$ tar xvfz nginx-1.3.1.tar.gz
$ cd nginx-1.3.1

4. Download and apply SPDY module patch

$ wget http://nginx.org/patches/spdy/patch.spdy-34.txt
$ patch -p0 < patch.spdy-34.txt

5. Configure nginx build

$ ./configure --with-http_ssl_module

Use --with-openssl=/path/to/openssl-1.0.1, when building OpenSSL
separately and statically linking.

Use --with-cc-opt and --with-ld-opt accordingly, if OpenSSL is
installed as an optional library, e.g. on Mac OS X

$ ./configure --with-http_ssl_module \
--with-cc-opt="-I/opt/local/include" \
--with-ld-opt="-L/opt/local/lib"

6. Build nginx

$ make


To enable SPDY in nginx configuration, just add "spdy" and "ssl"
parameters to the listen directive:

server {
listen 443 ssl spdy default_server;

ssl_certificate server.crt;
ssl_certificate_key server.key;

...
}

Optional SPDY configuration directives:

- spdy_recv_buffer_size - specifies the size of input buffer (per
worker), 1MB by default;

- spdy_max_concurrent_streams - maximum number of concurrent SPDY
streams in a single connection, 100 by default;

- spdy_streams_index_size - size of SPDY stream ID index, should
be power of 2, default is 32;

- spdy_recv_timeout - timeout when expecting more data from the
client, default is 30s;

- spdy_keepalive_timeout - inactivity timeout after which connection
is closed, default is 3m;

- spdy_headers_comp - header compression level (0 = no comp, 9 =
max comp), default is 1;

- spdy_headers_comp_window - size of LZ77 compression window,
default is 4KB.

The default values are more or less optimized for generic use,
there's normally no need to tweak them.

SPDY variables:

- $spdy - version of SPDY protocol if the request came via SPDY
(currently "2"), or empty value;

- $spdy_request_priority - priority of the stream, if the request
came via SPDY.


Disclaimer: use this code at your own risk, it is distributed under
the 2-clause BSD-like license, and at nginx we are not responsible
for any negative impact or effects that the usage of this code might
cause.


--
NGINX, Inc., http://nginx.com

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--
Maxim Konovalov
+7 (910) 4293178
http://nginx.com/

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