Observability Platform
The day my ping took countermeasures

The day my ping took countermeasures

7/11/2023 · Marek Majkowski

What this post added

This post details the evolution of the `ping` utility, a fundamental network diagnostic tool, highlighting its 'countermeasures' against clock manipulation. It explores how `ping` handles time synchronization issues, the underlying mechanisms like `vdso` and `CAP_NET_RAW` capabilities, and the use of `strace` for debugging. This contributes to the broader observability platform by demonstrating how even basic network tools are being refined for greater accuracy and reliability in performance measurement.

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