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.
MTU mismatch in Docker and OpenStack: how to fix CI/CD failure https://sudonull.com/mtu-mismatch-in-docker-and-openstack-how-to-fix-ci-cd-failure
Diagnosis and solution of MTU mismatch problem between Docker and OpenStack that breaks builds. Step-by-step guide for DevOps.
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.