Hello!

On Tue, Apr 10, 2012 at 04:03:50PM -0400, spacerobot wrote:

> It appears that no matter how big I set the value of
> large_client_header_buffers to be, nginx just doesn't care of the
> setting and still returns 414 on a long request.
>
> I tried to make it 16k, 32k, 256k, and 512k, etc and POSTing a request
> with 1.5k long URL returns 414. It works when I reduce the request URI
> length to about 1k, regardless of the large_client_header_buffers value
> as well.
>
> I also tried to set proxy_buffers to a large value and didn't help.
>
> Is there any other settings I need to look at to make the nginx box take
> longer request URI without returning 414?

Most likely you are trying to configure
client_header_buffer_size/large_client_header_buffers in a pure
virtual server{}. This won't work as request headers parsing
happens before Host header is known (and virtual server is
selected), hence parseing happens in a context of the default
server for a listen socket.

You have to configure client_header_buffer_size/large_client_header_buffers
in a default server (or at http level).

Maxim Dounin

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