Monitoring

Monitoring systems are responsible to collect, show and generate alarms in monitored devices.

• Performance tools:
  • Memory: vmstat, free, sar -r
  • Disk tools: iostat, iotop, hdparm, sar -d, ionice, hdparm and dd
  • Network: ntop, nmap, ping, fping, ncat, mtr, traceroute, tracepath
    • • Kernel: perf, strace, ftrace, Dtrace
  • cgroups and docker: systemd-cgtop, docker stats
• Troubleshooting tools: cfg2html, ansible-cmdb , sysreport, sosreport and acct

See also

• Monitoring: Prometheus, Cacti, monit, munin, RRDtool, Zabbix, Netdata, Nagios, Check MK, Icinga, Pingdom, OpsGenie and Datadog, Opsgenie, PRTG, Checkmk
• top, ntop, htop, atop
• Security information and event management (SIEM)

https://www.freedesktop.org/software/systemd/man/systemd-cgtop.html