linux
44 posts found
cua: Computer-Use Automation at Scale
An open-source framework for cross-OS computer-use agents with built-in benchmarks and fleet infrastructure — protocol-first, evaluation-native, fleet-aware.
Sandboxing Autonomous AI Coding Agents: Ephemeral Containers and Egress Boundary Enforcement
Infrastructure security engineer Alex Chen discusses container sandboxing, system call filtering with seccomp and Landlock, and network egress boundaries for au…
Cache Invalidation via Surrogate Keys: Edge Architecture and Purge Mechanics
Decouple cache invalidation from URL paths using Surrogate-Key headers for targeted CDN purging.
Oryxis vs SSHPilot: Architectural Trade-offs in Modern Remote Shell Clients
A technical evaluation of Oryxis and SSHPilot, comparing local ChaCha20-Poly1305 encrypted vaults, GTK4 versus Rust runtime footprints, and peer-to-peer fleet s…
witr: Tracing Process Start Chains
ps and lsof show what is running, not why. witr walks the ancestry: PID to supervisor to the script that started it, in one chain.
Why MoE Models Stream From NVMe: Kernel Prefetch, Read-Ahead, and Async I/O
Frontier MoE models run on consumer hardware by streaming expert weights from disk. Not compression—kernel I/O prefetching overlapped with GPU compute. Here's h…
Kernel Socket Tuning for High-Concurrency Load Balancers: TCP_NODELAY, TCP_FASTOPEN, and Listen Backlog
Disable Nagle, enable TCP Fast Open, tune listen backlog. Three socket parameters cut tail latencies 40–60% on modern load balancers.
Why Transport Layer Fingerprinting Will Replace IP Reputation
Perimeter security models that rely on IP reputation fail against residential proxy pools. Edge defense is shifting to transport-layer fingerprinting, inspectin…
Why Dropping All ICMP Breaks Path MTU Discovery
Blocking all ICMP traffic does not hide your servers from network scanners. Instead, it breaks Path MTU Discovery, causing silent connection freezes during TLS …
How to Tunnel Datagrams with MASQUE CONNECT-UDP Over HTTP/3
Configure RFC 9298 MASQUE CONNECT-UDP over HTTP/3 to tunnel datagrams without head-of-line blocking.