Duffy provided machines are not reachable due to missing DNS entries

CentOS Infra issue/request

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Issue Type

Issue - problem with something that was working
Feature Request - something you'd like us to add/modify/change
Task - mostly used by CentOS Infra team for day-to-day operations or bigger plans

Description

We (Foreman) use CentOS provided machines for our nightly and release pipelines. Starting 2025-10-21 21:14 (UTC), we see machines check out just fine, but then SSH to them fails with:

[2025-10-21T21:14:47.415Z] ssh: Could not resolve hostname n27-21-126.pool.ci.centos.org: Name or service not known

There was a successful run around 2025-10-21 07:56

Edited Oct 22, 2025 by Evgeni Golov

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