Case Study: Large Internet Service Provider achieves 100% protection from NXDomain attacks with Infoblox Advanced DNS Protection

Large Internet Service Provider - Customer Case Study

A large Internet service provider serving millions faced severe DNS performance problems and outages caused by NXDomain (phantom domain) DDoS attacks. Randomized queries for non-existent domains overwhelmed caching servers, slowing legitimate traffic and forcing operations staff into time-consuming manual log reviews and blacklist updates that required reboots and maintenance windows.

The provider deployed Infoblox Grid with DNS caching appliances and Infoblox Advanced DNS Protection, which automatically detects and drops malicious DNS requests and receives ongoing threat updates. The solution blocked 100% of attack traffic, eliminated repetitive manual tasks, reduced disruptive downtime, preserved customer experience, and prevented further business disruption.