The Managed DNS cluster failed to respond to a small number of DNS queries for a short period of time. We are currently investigating the exact scale and root cause of this incident.
Last night we were able to mitigate an attack with the fine tuning that happaned earlier.
Another brief outage happened last night. Further investigation showed that there was a TCP SYN flood happening from various networks and some UDP floods. We are working with the networks from which we received the traffic and we've put additional protections in place to prevent these incidents.
Metrics shows signs of a brief DDoS on various nodes within the DNS cluster. We are further investigating.
