Chamelio: A chameleonic network stack that adapts to every tenant
Guest Post: Chamelio is a provider-managed network stack for cloud VMs that runs in userspace on the host and allows tenants to upload custom transport protocols to a shared datapath.
Category:
Tech matters
Finding zero-days with any model
Guest Post: Vulnerability discovery is an orchestration problem, not a frontier-model problem.
Understanding partial reachability in the Internet core
Guest Post: Persistent partial reachability is not noise — it is a fundamental, measurable part of how the Internet behaves today. A small number of long-lived peninsulas cause most of the impact, and recognizing them can dramatically improve both operational clarity and measurement accuracy.
[Podcast] Canonical Cache Representation
Job Snijders discusses a new, compact representation of RPKI-signed objects and an archive of spooled snapshots of the global RPKI repositories.
IETF 126 in space
IP addressing, congestion control protocols, and a gold rush in space at IETF 126 in Vienna.
BGP topics from IETF 126
BGP ORIGIN, ASPAs, PAVA, and ASRAs at IETF 126.
DNS topics at IETF 126
Recursive resolver DNS query behaviour, Post-quantum DNSSEC, Optimistic DNS, Automating DNS delegation management, and more from IETF 126.
Hooray for the sockets interface
In 1983, BSD 4.2 introduced sockets, treating network communication like file I/O. This simplification sped UNIX adoption of shared protocols and services, marking a key turning point in modern networking.
Secure by default: How ‘HSTS-Enforced’ could finally close the web’s oldest backdoor
Guest Post: The current web still relies on a legacy assumption that website should be accessible over unencrypted HTTP unless it explicitly signals otherwise. HSTS-Enforced builds on top of HSTS by inverting its security model.
The delicate art of cryptographic maintenance: When small certs break big chains
Around mid-2026, we began receiving user complaints about certificate validation failures. The failure wasn’t a single bug, but the collision of optimization and slow distribution.