https://iter8lab.net/tags/firewalld/ Recent content in Firewalld on iter8lab https://iter8lab.net/images/mascot.png https://iter8lab.net/images/mascot.png Hugo en-us Fri, 07 Aug 2026 00:00:00 +0000 https://iter8lab.net/posts/2026-08-07-the-alarm-that-couldnt-ring/ Fri, 07 Aug 2026 00:00:00 +0000 https://iter8lab.net/posts/2026-08-07-the-alarm-that-couldnt-ring/ Building a heartbeat monitor for a narrow gap turned up a much bigger one — the alerting stack itself had been silently unable to notify anyone for over two weeks.