#monitoring
All articles tagged #monitoring — practical guides from production experience.
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17 posts tagged #monitoring · page 1 of 2
How to Monitor Real-Time Logs in Linux: tail, journalctl, multitail
Monitor real-time logs in Linux using tail -f, journalctl -f, and multitail — follow multiple log files simultaneously, filter live output, and build production log monitoring workflows.
Linux tail Multiple Files: Real Examples and Techniques
tail multiple files in Linux simultaneously — using tail -f, multitail, and journalctl to monitor several log files at once in real production scenarios.
Linux Check Running Services with systemctl: Real Examples
Check running services in Linux using systemctl — list active units, find failed services, check service status, and filter by type with real command examples.
Linux Check Open Connections: ss, netstat, lsof Examples
Check open network connections in Linux using ss, netstat, and lsof — see established connections, connection counts by state, and find which process owns each connection.
Linux Check Memory Usage: free vs top Explained
Check memory usage in Linux using free, top, and /proc/meminfo — understand available vs free, detect memory pressure, and identify memory-hungry processes.
Linux Check Listening Ports with ss: Complete Guide
Check listening ports in Linux with ss — see TCP and UDP listeners, find which process owns each port, filter by interface binding, and detect unexpected services.
Linux Check Disk I/O Usage: iostat Examples
Check disk I/O usage in Linux using iostat — read utilization, throughput, and latency metrics, identify saturated disks, and correlate I/O with application slowdowns.
How to Check Uptime in Linux: uptime, w, and Beyond
Check Linux server uptime with uptime, w, and /proc/uptime — read load average correctly, find when the last reboot happened, and script uptime checks.
How to Check CPU Usage in Linux: Real Command Examples
Check CPU usage in Linux using top, mpstat, ps, and vmstat — read per-core breakdown, identify CPU-hungry processes, and diagnose high load in production.