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A10 Networks Helps Service Providers Secure and Protect DNS Traffic with DNS over HTTPS (DoH)

A10 Networks  announced the availability of its Domain Name System (DNS) over HTTPS (DoH) capability in the Thunder Convergent Firewall (CFW). This native capability enables service providers to offer DoH services to their subscribers. It helps organizations who run DNS infrastructure deliver higher DNS security by preventing interference and enabling user privacy protection through end-to-end encryption for DNS queries, without sacrificing the performance and latency needed for DNS infrastructure. DoH ensures deeper protection to subscribers against DNS-based attacks. This ultimately improves operational efficiencies for our customers while enhancing security.

Encryption is fundamental for the privacy of data on the internet. HTTPS (encrypted HTTP) has one of the largest shares of traffic on the internet today. Due to privacy concerns after the 2013 Snowden leaks, HTTPS is now the de facto standard with sources such as Mozilla Firefox, which showed a 300 percent increase over the period. DNS traffic, by contrast, remains a largely unencrypted channel on the internet. When the DNS traffic is unencrypted, it is vulnerable to manipulation and privacy violations. For example, in A10 Networks’ Q4 2019 State of DDoS Weapons report, DNS resolvers are one of the top-five DDoS weapons and DNS service ports are one of the top-10 UDP targets. DNS is also exploited for malware, ransomware and data theft attacks. Resilient, high-performance DNS infrastructure is essential for the proper functioning of service provider networks and the internet itself.

A10 Networks has worked with large service provider customers to develop a DoH capability, and it is now deployed in production at tier-one service provider networks. The capability is based on a proposed standard published as RFC 8484 by the Internet Engineering Task Force (IETF).

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