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Forum Discussion

Eduardo_Saito_1's avatar
Eduardo_Saito_1
Icon for Nimbostratus rankNimbostratus
Nov 06, 2006

Limit number of connections for googlebot

Hello! I'm trying to write an irule that limits the number of connections that Google Bot can use. I found some good scripts that help me acomplish this (one made by Joe and the other one from tip...
application delivery
dev
devops
iRules
Deb_Allen_18's avatar
Deb_Allen_18
Historic F5 Account
Aug 14, 2007
Yeah, just remove the switch statement & you'd have something like this, which won't discriminate against just googlebot:
when RULE_INIT {
  array set ::active_clients { }
}
when CLIENT_ACCEPTED {
  set client_ip [IP::remote_addr]
  if { [info exists ::active_clients($client_ip)]  } {
    if {$::active_clients($client_ip) > 10 } {
      reject
      log local0. "Reject GOOGLEBOT IP $client_ip ($::active_clients($client_ip))"
      return
    } else {
      incr ::active_clients($client_ip)
    }
  } else {
    set ::active_clients($client_ip) 1
  }
}
when CLIENT_CLOSED {
  set client_ip [IP::remote_addr]
  if { [info exists ::active_clients($client_ip)] } {
    incr ::active_clients($client_ip) -1
    if { $::active_clients($client_ip) <= 0 } {
      unset ::active_clients($client_ip)
    }
  }
}