CPU usage per process linux
Top 15 processes by CPU consumption
ps aux --sort=-%cpu | head -15
more linux
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Memory usage per process
ps aux --sort=-%mem | head -15
Follow systemd service logs
journalctl -u <service> -f --since '10 minutes ago'
Check systemd service status
systemctl status <service> --no-pager -l
Capture traffic on interface
tcpdump -i eth0 -nn host <ip> and port 80 -w /tmp/capture.pcap
Check inode usage
df -i | sort -k5 -rn