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[Podcast] How many DNS nameservers is enough?

Geoff Huston examines the number of nameservers assigned to domains and the potentially inefficient methods used to select which one is queried.

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Let’s Encrypt scales rate limits to prepare for a billion active certificates

Guest Post: Let's Encrypt have evolved rate limits to better serve subscribers and keep the service healthy.

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BGP zombies at NANOG 93

Why do BGP zombies occur and how big of a problem are they?

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PSA: Traceroute — safe and effective to use

Guest Post: Public Service Announcement about the traceroute tool used by network engineers.

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Join the first Pulse Internet Measurement Forum at APRICOT 2025 

Guest Post: Gain insights into the Internet Society's Internet measurement and resilience project and learn how to leverage the data at APRICOT 2025.

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Preparing for Encrypted Client Hello (ECH)

Guest Post: How we defend our systems has shifted. Here's what organizations and schools need to know.

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Building a secure test environment for an IXP

Guest Post: How to build a quarantine VLAN for enhanced reliability.

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Network automation and AI at NANOG 93

Integrating network command and control automation with AI management tools.

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[Podcast] RPKIViews: The archive of RPKI states

Job Snijders discusses his global RPKI validation archive, and the annual 'state of RPKI' report he produces.

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So you want to build your own data centre

Guest post: How to build your own physical cage co-located infrastructure.

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Measuring DNS root servers under change

Guest Post: Root server co-location is prevalent but mostly low, with ∼70% of vantage points observing co-location of at least two servers globally.

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Notes from OARC 44

DNS traceroute, virtual vs bare metal servers, packet sizes, and more from OARC 44.

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[Podcast] Night of the BGP zombies

Geoff discusses BGP 'zombie' routes — routes that should have been withdrawn but persist in the routing system. He explores how these anomalies might occur and what can be done to address them.

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Building a host telemetry solution using Tailscale

Guest Post: How to collect and analyse host flow data for network traffic insights.

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IPv6 is hard

Guest Post: No, it's not. It's different.

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Botnets never die

Guest Post: An analysis of the large-scale botnet AIRASHI.

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RouteViews Peering Policy updated

Guest Post: RouteViews has updated its Peering Policy. Here's what it means.

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The root of the DNS

Opinion — How is the root zone service ensuring capacity growth to meet rising query rates?

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APNIC Academy IPv6 certification in 2025

APNIC Academy IPv6 certification is heading to Bangladesh and Thailand in 2025.

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[Podcast] Pulse Internet Measurement Forum at APRICOT 2025: Part 1

Five short interviews with presenters from the recent PIMF session at APRICOT 2025 in Petaling Jaya.

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A load of old…

Is quantum computing and post-quantum cryptography really that big of a deal?

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PeeringDB to require MFA and API keys

Guest Post: PeeringDB will require Two-Factor Authentication from 1 July 2025.

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Is your network protected? The rov-check project by JPNIC

Guest Post: JPNIC has developed a simple tool that provides a quick and reliable way to verify ROV deployments.

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Bridging connectivity and collaboration gaps in Bangladesh 

With rapid progress in infrastructure, Bangladesh is building more resilience through community-driven initiatives and strategic investments.

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Automating ISP networks with Ansible and phpIPAM

Guest Post: How ISPs can leverage IP Address Management (IPAM) systems as a Source of Truth (SoT) for automation workflows driven by Ansible.

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Network traffic telemetry on modern routers: Part 1

Guest Post: How to implement various network traffic telemetry protocols and handle them in code.

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Network traffic telemetry on modern routers: Part 2

Guest Post: The next generation of network monitoring: sFlow v5, Sampled Port Mirroring, GRE Tunneling, and Inline Monitoring with IPFIX/NetFlow v9.

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Exploring Internet connectivity between Mongolia and Kazakhstan

A practical analysis of cross-border network performance using free tools.

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JPNIC RPKI guidelines released

Enhancing Internet routing security with ROA and ROV.

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IPv6 penetration in Nepal

Guest Post: The current status, progress, challenges, and future outlook of IPv6 in Nepal.

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