As reported in September, DE-CIX has deployed AS112 project servers in order to secure the DNS system. The service is now not only available in Frankfurt and Hamburg, but also in New York and Istanbul.
The implementation in Frankfurt and Hamburg was very successful. The result can be seen on the graph below, where the amount of queries to the DE-CIX AS112 servers is shown for one week: There are about 2,000 to 4,000 queries per second.
The aim of the AS112 project is to create a web of DNS servers that catch reverse DNS queries for private IPv4 space (e.g. 192.168.0.0/16, and see RFC 1918). This will reduce the load on so-called DNS root servers and makes the DNS system more secure and robust against DNS DDoS attacks.
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