hi,

look at the modules HttpLimitReq and HttpLimitZone

http://wiki.nginx.org/NginxHttpLimitReqModule
http://wiki.nginx.org/NginxHttpLimitZoneModule

++ jerome

2009/9/16 Juergen Gotteswinter <jg@internetx.de>:
> Hello Folks
>
> i got setup where nginx acts as reverse proxy for 3 apache backends.
> yesterday we had the case that some kind of bot or spider started attacking
> one domain which gets through nginx.
>
> is there any possibility to configure nginx for something like "rate
> limiting" or should i better go with iptables? the hardware is strong enaugh
> to take this (quadcore xeons).
>
> Greetings
>
> Juergen
>
>