Distributed denial-of-service (DDoS) attacks that could be related have in the past few days slammed the DNS servers of at least three providers of domain name management and DNS hosting services.
DNSimple, easyDNS and TPP Wholesale all reported temporary DNS service outages and degradation on Monday, citing DDoS attacks as the reason. In some cases the attacks started a few days ago and are ongoing.
TPP Wholesale, a subsidiary of Sydney-based Netregistry, one of Australia’s largest providers of Web hosting, domain management and other online services, alerted its customers through its website on Monday that eight of its DNS servers experienced “unscheduled service interruption.”
TPP Wholesale experienced a series of DDoS attacks against its DNS name servers over the past several days, the Netregistry Group Security Team said in a blog post. The company managed to mitigate the DDoS attacks that caused service interruptions throughout Monday by taking “the drastic step” of rate-limiting DNS queries, the team said.