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HTB Stacked: XSS and Docker escape walkthrough

https://sudonull.com/htb-stacked-xss-and-docker-escape-walkthrough

Detailed walkthrough of the Stacked machine on Hack The Box: nmap reconnaissance, vhost ffuf, XSS in Referer, base64-proxy mail.stacked.htb. Master RCE and container escape. Read the guide for pentesters.

Docker vs VM: Key Differences Explained (2026)

https://sudonull.com/docker-vs-vm-key-differences-explained-2026

What is a docker container and how does it differ from a vm? Learn architecture, security, performance, and when to use each. Make the right choice for your projects.

pgvector vs pgvectorscale vs VectorChord: comparison

https://sudonull.com/pgvector-vs-pgvectorscale-vs-vectorchord-comparison

Technical comparison of PostgreSQL extensions for vector search: pgvector, pgvectorscale, VectorChord. Benchmarks, HNSW/DiskANN indexes, RaBitQ compression. Docker setup and code for 1M records. Choose the optimal solution.

Docker on VPS: 24 containers in production

https://sudonull.com/docker-on-vps-24-containers-in-production

How to deploy 24 containers on VPS with 6 GB RAM. Architecture, Elasticsearch optimization, SSH tunnels, monitoring without Prometheus. For DevOps and middle/senior engineers.

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