nginx-1.1.8

[Maxim Dounin]

Hello!

On Fri, Nov 25, 2011 at 11:03:39AM +0800, Delta Yeh wrote:

> 2011/11/14 Igor Sysoev <igor at sysoev.ru>:
> > Changes with nginx 1.1.8                                         14 Nov 2011
> >
> >    *) Change: the ngx_http_limit_zone_module was renamed to the
> >       ngx_http_limit_conn_module.
> >
> >    *) Change: the "limit_zone" directive was superseded by the
> >       "limit_conn_zone" directive with a new syntax.
> >
> >    *) Feature: support for multiple "limit_conn" limits on the same level.
> >
> 
>  Usually we use   limit_zone module like:
> http{
> 
>  limit_zone   one  $binary_remote_addr  10m;
> server
> {
>    location /mypage{
>       limit_conn   one  number_of connections;
>   }
> }
> 
> What is the  scenario that we should use multiple limit_conn ?

E.g. if you want to limit number of connections per ip *and* total 
number of connections per virtual host.

    limit_conn_zone $binary_remote_addr zone=perip:10m;
    limit_conn_zone $server_name zone=perserver:10m;

    server {
        ...
        limit_conn perip 10;
        limit_conn perserver 100;
    }

> Is there a way to limit total connections to one location ?

Yes.

Maxim Dounin