We have identified an attack on the VPS 2013 Cloud's infrastructure. We have temporarily disabled robots in order not to overload the infrastructure.
We are intervening.
Date: 2013-04-19 23:16:07 UTC The infrastructure is stabilised, we have relaunched most of the robots, and we are fixing few erroneous tasks.
Date: 2013-04-19 23:14:58 UTC We have reactivated the \"switchport block unicast\" option on the switches of the infrastructure in order to have a better attack mitigation.
This option protects the infrastructure but the vms do only provide a bit of traffic which would cause ping issues.
We have set a ping of the whole set of ips on a very regular interval in order to avoid this behaviour.