DNS nameservers
How recursive resolvers handle DNS queries and how can administrators optimize nameservers for performance and resilience?
Tag: anycast
Mitigating DDoS using an anycast playbook
Guest Post: How to redistribute traffic between anycast sites during a DDoS attack.
Unpacking RFC 9199: Considerations for large authoritative server operators
Guest Post: RFC 9199 presents considerations to improve the security, resilience, and performance for large authoritative DNS server operators.
Notes from DNS-OARC 36
Slack’s DNSSEC debacle, NSEC problems, Measuring DNSSEC, and more from DNS-OARC 36.
AnyOpt: Predicting and optimizing IP anycast performance
Guest Post: New anycast technique reduces average RTT between clients and anycast servers by 43.4%.
Caching is key to interpreting root DNS anycast performance
Guest Post: Context is everything when it comes to assessing anycast.
Did you validate your routing policies?
Guest Post: See 90% of all active ASes on the Internet with new anycast testbed.
Anycast performance monitoring with Anteater
Guest Post: The open-source DNS tool Anteater allows real time monitoring of operator infrastructure, using their own traffic.
Building an open source anycast CDN
Guest Post: A bit of free time and a desire to experiment led high school student Nate Sales to construct an open source anycast CDN.
MAnycast²: Using anycast to measure anycast
Guest Post: Due to its popularity, identifying which address is anycast isn’t straightforward, so a new approach is needed. Enter MAnycast².