Root cause: UFW firewall was blocking all traffic from Podman container
subnets (10.88.0.0/16, 10.89.0.0/16) to the host, which prevented
Aardvark DNS resolution. Containers could not resolve each other by
hostname, causing mempool-web, mempool-api, nbxplorer, btcpay-server,
and immich_server to crash loop (6000+ total restarts).
Fix: Added UFW allow rules for Podman network subnets. Also removed
unused ollama container. All 32 containers now stable.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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