System Operations

Check Disk Usage and StorageCheck disk and partition usage, see the disk layout and filesystem types, and find which folders are consuming space with df, lsblk, du, and ncdu.

Docker Container Name ConflictResolve 'container name already in use' errors caused by leftover containers when docker compose up fails to recreate services.

GPU MonitoringGPU utilization, memory, and process monitoring with nvidia-smi for one-shot or refreshed views, and nvtop for an interactive interface.

Linux Service OperationsOperate systemd services, Nginx configs, process IDs, journal logs, Docker logs, and cron jobs on Linux servers and Arch workstations.

Linux System Maintenance and Error ReviewReview Linux system freezes and runtime failures, inspect previous boot logs, check driver and package state, and safely update an Arch Linux workstation.

Linux zram and Disk-Backed SwapIdentify zram-only swap, understand why zram cannot store a hibernation image, and configure a two-layer swap setup with zram for runtime paging and disk-backed swap for hibernate.

Port Already in UseFind and kill the process using a port with PIDs.