Everything tagged dns, newest first. Tags come from the classifier reading each item's summary; 394 tags used 25 times or more have their own page.
APNIC Labs has been experimenting with how DNS handles requests for nonexistent names, aiming to improve resilience against random name attacks by better understanding and strengthening this behavior.
This analysis by Ilyas Rahimi at the University of Amsterdam examines how locally served root zones affect traffic patterns, likely focusing on performance, latency, and network efficiency implications within DNS infrastructure.
Modern service discovery has become flexible enough to let services use arbitrary ports, but DNS still remains tied to the traditional port 53 convention.
Five Rust-level memory optimizations to Big Pineapple’s DNS cache layout reduced per-entry memory usage by 56%, freeing roughly 100 TB across Cloudflare’s fleet.
Geoff Huston explores the unpredictable nature of DNS queries following a 'cold start', where no cached data is available, highlighting the complexities and inefficiencies that arise in such scenarios.
In early 2026, Cloudflare reported a 519% increase in hyper-volumetric DDoS attacks, primarily using DNS and CLDAP reflection vectors, influenced by major geopolitical conflicts reshaping the global cyber threat landscape.
IETF 126 covers advancements in DNS technologies, including recursive resolver query behavior, post-quantum DNSSEC, optimistic DNS, and automation in DNS delegation management.
APNIC Labs observes duplicate DNS queries due to factors like DNS resolver retries, load balancing, and network path variations, which lead to multiple query transmissions for the same domain name.
Cloudflare Internal DNS integrates authoritative and recursive DNS for private networks within Cloudflare's global network, enhancing Zero Trust, networking, and public DNS services.
A failed DNSSEC key rollover caused the .AL TLD to go down, but resolution was restored using a Negative Trust Anchor and clients were informed through EDE 33, a new DNS error code indicating DNSSEC validation bypass.
This study investigates the behavior of DNS bootstrap priming queries when root servers are renamed and DNSSEC signatures are implemented, analyzing the impact on DNS operations.
The evolution of computers from isolated machines to a globally connected network began with packet switching, the development of ARPANET, and the creation of the internet through TCP/IP, culminating in the World Wide Web, which democratized access to information and transformed the digital landscape.
Internet routing is evolving from traditional IP-based forwarding to name-based decisions, where DNS and intermediaries play a crucial role in directing requests to the appropriate servers.
Ryan and Cricket Liu discuss the evolution and future of DNS, focusing on BIND, security threats like DDoS and DNS spoofing, and the importance of understanding DNS's fundamental role to prevent outages.
The DNS system allows free space queries for name resolution, raising concerns about the extent of over-querying by recursive resolvers.
A study introduces a framework to evaluate the resilience of authoritative DNS, highlighting its importance in maintaining government online services and identifying strengths and weaknesses in their digital infrastructure.
The design of a resolver's query strategy must balance the tension between resilience and speed, particularly evident during DNS cold starts.
The Domain Name System (DNS) is a crucial component of the Internet, and its level of centralization is a significant concern.
Cloudflare Radar data shows partial Internet restoration in Iran, with traffic and DNS queries increasing but network activity remains at 40% of pre-shutdown levels.
The OARC 46 conference in Edinburgh highlighted the significance of using encrypted DNS transports to secure communication between recursive resolvers and authoritative DNS services.
NIST's updated DNS deployment guide emphasizes DNS as a crucial security measure, providing practical advice on protective DNS, encryption, DNSSEC, and operational strategies to enhance resilience, visibility, and policy enforcement.
Eight years after launching 1.1.1.1 for a faster, more private Internet, an independent examination confirms its privacy protections are effective.
Meta's acquisition of the Moltbook team aims to control the future of agent-based social graphs by providing a directory and verification system for digital agents, similar to a DNS for human social interactions.
Geoff Huston's analysis of DNS over IPv6 highlights regional and network variances, questioning the reliability of IPv6-only DNS for future operations.
Protective DNS blocklists, while simple, are not comprehensive security solutions due to variations in goals, threat categorization, maintenance, and community support.
The Network Management session at APRICOT 2026 featured four presenters who provided practical, data-driven insights for operators to enhance network understanding and optimization.
A significant portion of the Internet user base can reliably access DNS servers exclusively via IPv6, indicating growing IPv6 adoption.
DNSSEC adoption, despite its slow growth over two decades, remains crucial for enhancing internet security by preventing DNS spoofing and ensuring data integrity.
The guest post explores the impact of heightened TCP usage on authoritative nameservers, analyzing performance implications and potential challenges in DNS infrastructure.
This course offers a comprehensive exploration of computer networking fundamentals, covering the entire networking stack, error detection, routing, and security, designed for GATE aspirants and computer science students, with a focus on practical problem-solving and theoretical understanding.
Research reveals that transparent DNS forwarders pose a threat by enabling access to shielded recursive resolvers, increasing the potential attack volume.
In the last quarter of 2025, Internet connectivity faced significant disruptions due to cable cuts, power outages, extreme weather, and technical issues, as reported by Cloudflare Radar.
A change to 1.1.1.1 inadvertently modified CNAME record order in DNS responses, disrupting some clients, prompting an investigation into resolver source code and DNS RFC ambiguities.
Italy has imposed a 14 million euro fine on Cloudflare for failing to block access to pirate sites through its 1.1.1.1 DNS service.
Domain renewal rates are linked to usage, and Domain Connect offers a standardized communication method between service and DNS providers, enabling users to complete setups quickly.
DNS failures highlight a lack of understanding of the intricate interdependencies within complex systems, leading to service disruptions.
For stress relief while troubleshooting DNS BGP network server issues, visit http.pizza, then consult resources like Wikipedia's HTTP status codes list.
Managing Kubernetes clusters across multiple public clouds presents challenges such as workload identity, DNS query resolutions, and security, requiring expert solutions for effective operation.
The podcast discusses Small Modular Nuclear Reactors, a Firefox browser security issue, a global Azure outage due to DNS problems, and Palo Alto Networks' new enhancements.
RIPE 91 covered a range of topics including routing the root, post-quantum cryptography for the RPKI, and the role of TTLs in DNS, highlighting advancements and challenges in internet infrastructure and security.
During a live stream, the host discusses technical setups, subscriber dynamics, DNS issues affecting Microsoft services, and past experiences in web infrastructure, while managing live stream challenges and thanking donors.
A DNS manager issue in one Amazon region caused a 16-hour disruption across its extensive network.
The recent AWS outage highlights the critical need for resilient data center strategies, as millions were affected by a DNS error impacting major apps and websites.
A recent CVE may compromise security measures established after a 2008 vulnerability disclosure, potentially weakening current defenses.
A massive AWS outage on October 21, 2025, disrupted over 2,500 companies globally, highlighting the risks of over-reliance on a single cloud provider due to a DNS misconfiguration in the US East1 region.
Amazon's recent outage has ended, but the financial repercussions and customer dissatisfaction due to billions in losses are just beginning to surface.
A significant AWS outage on October 20, 2025, disrupted numerous services due to DNS issues in the US East1 region, highlighting vulnerabilities in the cloud's infrastructure and affecting major apps and services globally.
A widespread outage impacted major websites such as Coinbase and Fortnite, and disrupted services including Signal, Zoom, and Amazon products like Ring.
Connecting to a dual-stack or IPv6-only VPN from an IPv4 network can cause DNS issues, leading to inconsistent connectivity such as browsers failing to connect while pings succeed, possibly due to OS confusion over stack and interface prioritization.
Duane Wessels and Moritz Mullër analyze the effectiveness of ICANN's RSSAC047 metrics in evaluating the DNS Root's performance and reliability.
