PSA: Postmortem(s) rollup

Further WireGuard wobbles, to start off the new week…

incid.
date
pub.
date
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04/20 04/27 Duplicate Wireguard Mesh IPs Wreaking Havoc

This time it was a userland bug, however, not in the kernel.


Aside: There was also a status-page-only The status-page incident in Singapore on that day had the same underlying cause. (See @PeterCxy’s comment below for more details.)