Resource health
CPU, memory, disk, and I/O pressure checks for sustained incidents.
Linux operations toolkit
Linux tools lab
Collect high-signal data from services, storage, and resource pressure without guessing.
Commands are grouped by purpose and each output stream can be interpreted in the local analyzer.
Operating profile
Focus areas
Service readiness
Process and unit checks for restart loops, failed states, and degraded targets.
Security surface
Open port and socket inspection for quick drift detection.
Command cards
Reusable checks
Host health snapshot
uptime free -h iostat -xz 1 2
Run as read-only baseline before any on-call shift.
Service readiness
systemctl --failed --all journalctl -p err --since "1 hour ago" --no-pager -n 30
Use this when validating changed service units.
Network service review
ss -tulpen | grep ':80\|:443' sudo nft list ruleset | sed -n '1,120p'
Requires privileged access; include maintenance and approvals.
Command builder
Build custom diagnostics
Local analysis
Paste diagnostics output
Finding capture
Record local findings
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