Semantic Caching for LLMs: Architecture, Thresholds, Risks
Semantic caching for LLMs explained: gateway architecture, safe similarity thresholds, tenant scoping and a tested Node.js cache, with published hit rates.
Ashutosh Tiwari
Retry Storm Prevention: Backoff, Jitter and Retry Budgets
Retry storm prevention with capped attempts, full jitter and retry budgets, drawn from GitHub's August 2026 outage and Uber, with tested Node.js code.
OpenSSH 10.6p2: musl Password Bypass and Interview Qs
OpenSSH 10.6p2 fixes a musl password bypass in sshd. See who is affected, how to patch or mitigate, and five interview questions it prepares you for.
PHP2Shell CVE-2026-109618: Fix and Interview Questions
PHP2Shell (CVE-2026-109618 and CVE-2026-109619): affected versions, the fix, and five interview questions on memory safety and stale state.
Residential Proxy Detection: What the White House Case Shows
Residential proxy detection explained: what the White House exit-node case shows and how to catch proxy traffic by behavior, not by IP reputation lists.
APT CVE-2026-109518: Fix, Impact and Interview Questions
APT CVE-2026-109518 let a network attacker swap a verified package. See what changed in APT 3.3.6, how to patch, and the TOCTOU interview questions.
Go encoding/json/v2: What Changed and Interview Questions
Go encoding/json/v2 is stable in Go 1.27. See what changed from v1, how to migrate safely, and the interview questions this update prepares you for.
CVE-2026-98432 Linux Kernel TCP Flaw: Fix and Interview Qs
CVE-2026-98432 is a Linux kernel IPv4 TCP use-after-free. See who is affected, which kernels fix it, how to patch, and the interview questions it covers.
TanStack Charts 1.0: Setup, Bundle Size and When to Use It
TanStack Charts 1.0 is a typed, framework-agnostic chart library. See React and Angular setup, real bundle size data vs Chart.js, and first-day gotchas.
Next.js Security Release: 7 Fixes and Interview Questions
Next.js security release of Nov 3, 2026 fixes 7 issues, incl. cross-tenant cache leaks. See affected versions, the upgrade path and interview questions.