Exploiting Access to the /var/log Folder

In my experience it is somewhat common that people believe that it is impossible to escalate your permissions when you have access to the logs in /var/log on a node. That is inaccurate.

February 25, 2026 · Linus Östberg

Container Lifecycle Hooks May Block Pod Creation and Termination

Container lifecycles hooks can make sure commands run before and after container creation. However, they may block container start and termination indefinitely, and you should be very careful when you use them.

January 12, 2026 · Linus Östberg

Practical Certification Exams at LF

Opinions about what setup to use for doing practical certification exams at Linux Foundation (CNCF).

May 6, 2025 · Linus Östberg

Snacka Kubernetes - Neuvector

What to think of when running Neuvector in production.

February 20, 2025 · Linus Östberg

Snacka Kubernetes - Supply Chain Security

A short overview of image and git commit signing.

February 16, 2025 · Linus Östberg