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#Linux Server

2 articles on this topic.

Diagram of the four main sources of Ubuntu server disk bloat: snapd cache, systemd journal, dangling Docker images, and orphan volumes
LatestVPS SecuritySelf-Hosted AIDocker

Free Up Disk Space on Ubuntu: Clean Snapd, Docker & Logs

Ubuntu boot disk filling up? Reclaim 8-15GB from snapd, journald, and orphan Docker volumes without breaking running containers.

13 min readRead
Diagram showing how Docker DNAT routes traffic to the FORWARD chain, bypassing UFW INPUT rules, and how the DOCKER-USER chain restores control
VPS SecurityDockerSelf-Hosted AI

Docker Bypasses UFW: The DOCKER-USER Fix for Any Linux VPS

Docker ignores UFW. Published ports hit FORWARD, not INPUT. Add a DOCKER-USER drop rule so UFW actually closes the port.

14 min readRead
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