Thanks a lot, Jonathan and Francis!

It works great. I am able to significantly reduce the load. Here is my
final configuration:

* limit_req_zone $binary_remote_addr zone=ratezone:10m rate=3r/s;*
* server {*
* listen 80;*
* server_name www.example.com;*
*
*
* location / {*
* limit_req zone=ratezone burst=5 nodelay;*
* proxy_pass http://appservers;*
* }*
* }*
*
*
* server {*
* listen 80;*
* server_name ~.*;*
* location / {*
* access_log off;*
* return 503;*
* }*
* }*

-Praveen


On Sat, Mar 16, 2013 at 3:38 AM, Francis Daly <francis@daoine.org> wrote:

> On Sat, Mar 16, 2013 at 02:34:32AM -0700, Praveen Yarlagadda wrote:
>
> Hi there,
>
> > I installed nginx on an EC2 instance.
>
> > Another weird thing is GET
> > requests are starting with *"http://". *I never saw it before. Is there
> any
> > way I can filter requests or possibly throw 503?
>
> These might be innocent requests from browsers configured to use your IP
> address as a proxy server. (Maybe there was a proxy server on a previous
> instance that used your current address?)
>
> I suggest making your current server{} blocks list all of the
> server_name:s that you want to handle, and then let the default
> server{} block handle these other requests, with "return 503" or any
> other configuration you like.
>
> See http://nginx.org/r/listen and http://nginx.org/r/server_name for how
> to configure server names and the default server for a given address:port.
>
> f
>
> --
> Francis Daly francis@daoine.org
>
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>
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