hello,

i use to be a varnish user, and decided to give a test on nginx couple of week ago.
problem is that i can not find the way to limit bad bots and spammer just like varnish can did it. at varnish, i can block bad bots and spammer if they request new pages.

how can i do that in nginx? blocking or redirecting bad bots and spammer when they request fresh pages? and allow them to fetch cached pages just like a legitimate user.

many thanks in advance for the helps.
regards,