FUCKUP #001: The VM That Could Reach Everything Except Its Gateway

Fri, 25 Sep 2026 00:00:00 +0000

A Linux VM could reach other hosts on its subnet, but not the default gateway. Even packet captures seemed to contradict the symptoms.

About FUCKUP.fail

Mon, 01 Jan 0001 00:00:00 +0000

For most people, the name is self-explanatory.

For those who know:

First Universal Cybernetic-Kinetic Ultramicro Program.

FUCKUP.fail collects real-world infrastructure failures, strange symptoms, diagnostic paths and the reasoning that leads to the root cause.

The focus is not on memorizing commands.

It is on answering the more useful question:

What should I test next — and what does the result actually tell me?