Technology
Critical DNS Resolution Failure: The Invisible Network Disaster
Take an in-depth look at the invisible network disasters caused by DNS resolution failures and the impact this critical issue has on businesses.
#dns
18 posts found.
Tutorials
Kubernetes Service Discovery Crisis: The Dark Side of DNS
Are you wrestling with service discovery issues in Kubernetes? Explore the limitations of DNS and how to overcome these challenges.
Tutorials
How a Hidden DNS Bug Brought Down a Network Architecture: A Case Study
Learn through a case study how a hidden DNS bug threatening network architectures can spiral into a full-blown disaster. Don't miss this deep dive.
Technology
Outage Day in Cloud Architecture: A Real DNS Failover War Story
A real war story about an outage day in cloud architecture and why DNS failover strategies matter.
Tutorials
Defense Strategies Against Kubernetes DNS Cache Poisoning
Learn effective defense strategies against DNS cache poisoning attacks in Kubernetes environments. Discover methods to strengthen your security.
Technology
Multi-Region Traffic Steering and Failover Discipline with GSLB
Traffic steering discipline for multi-region services using GSLB, built around health signals, hold-down, and controlled failback.
Technology
DoH/DoT/DoQ in Enterprise Networks: Policy and Visibility
A controlled-transition, telemetry, and runbook approach for enterprise policy and visibility in a world of encrypted DNS via DoH/DoT/DoQ.
Tutorials
Service Discovery with Consul: Health Checks and the DNS Interface
A guide to building an operable service discovery layer with Consul through health-driven service registration and the DNS interface.
Technology
Edge Service Design with BGP Anycast: DNS and DDoS Resilience
A practical edge design guide that addresses routing, health signals, capacity, and attack scenarios together to see Anycast's real benefits.
Technology
Enterprise DNS Firewall with DNS RPZ: Threat Blocking and Operations
Build a sustainable DNS security control by blocking threat domains via RPZ at the recursive resolver, with proper exception handling and observability.
Technology
Trust Boundary at the SD-WAN Edge: Egress Policy, DNS, and Logging
Preserving the trust boundary across DIA / DC / cloud egress in SD-WAN: traffic classification, DNS strategy, split-tunnel, and a centralized log model.
Technology
Enterprise Edge Resolver Architecture with Anycast DNS
An approach for placing the in-house DNS resolver tier near the POP/branch using Anycast — cutting latency while improving operability.
Technology
IPv6 in Enterprise Networks: A Roadmap from Dual-Stack to IPv6-Only
A field-applicable plan for rolling out IPv6 not just as 'an address' but together with DNS, security, observability, and operational reflexes.
Technology
A Dedicated DNSSEC-Validating Resolver Layer in Enterprise Networks
An enterprise architecture approach that places DNSSEC validation in a dedicated resolver layer to raise trust in name resolution.
Technology
Segment-Based Resolution in Enterprise Networks with DNS Firewall
A DNS architecture that separates the resolution flow per segment, reducing abuse risk, data exfiltration, and operational blind spots.
Tutorials
Regional DNS Cache and Forwarder Separation with Unbound
A clean guide for separating resolution traffic across enterprise segments by configuring cache, forwarder, and access control with Unbound.
Technology
DNS-Based Service Routing in Enterprise Networks
A framework for treating the DNS layer as a service routing and resilience control point, not just a name resolution service.
Technology
Resilience in Enterprise DNS and Service Discovery
Design principles for keeping the DNS and service-discovery layer in hybrid infrastructures from becoming a single point of failure.