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networking
68 postsTelegram's Hidden Data Centers: Why DC3 Users Vanished
An MTProto-level investigation into why Telegram's DC3 data center appears empty and how DC-detection bots got it wrong.
Differential Testing Exposes Native vs Generic XDP Behavior Gaps
An open-source differential harness compares native vs generic XDP frame bytes and verdicts, with a reproducible virtio/veth baseline on Linux 6.8.
4 self-hosting failures that quietly report success
Four silent self-hosting failures — 200 OK pages, false healthchecks, empty backups, vanished WoL packets — and how to actually catch them.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comGo-ktls: Linux Kernel TLS Offload for Go's HTTPS Listener
Go-ktls offers TLS offload for Go's net/HTTP, supporting TLS 1.3 and 1.2 via the Linux kernel.
How GitHub Uses eBPF to Block Circular Dependencies in Deployments
GitHub explains how it uses eBPF to detect and block circular dependencies caused by hosting its own source code, using cGroup-based network filtering and a DNS proxy.
Exploring DNP3’s Event-Driven Telemetry Model
DNP3's event-driven telemetry model prevents data loss in industrial communications. Discover the core components of this protocol.
A Practitioner Guide to AWS EFA Programming
Explore a practical guide on programming AWS EFA NICs for GPU workloads, covering EFA's features and software emulation techniques.
RDMA in gVisor: A Deep Dive into GPU Networking
gVisor enhances GPU networking with RDMA support, improving performance and security isolation.
WireGuard: Viewing Ping as Ciphertext and Cleartext
Explore the dual views of ping through a WireGuard tunnel: encrypted UDP and cleartext ICMP.
The Silent Socket: A Gemini-TTS Batch That Hanged Indefinitely
A silent socket caused a batch process to hang indefinitely. The fix involved adding timeouts to detect stalls.