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, badblocks 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

Monitoring tools

• Zabbix (2001)
• Nagios (2002)
• Icinga (2009)
• Prometheus (2012, Go)
• Netdata (2013)

Monitoring Services

• OpsGenie (Atlassian)
• Pingdom (SolarWinds)
• Datadog

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, iotop, systemd-cgtop, virt-top, stress, slabtop, docker stats, docker top, docker container top, docker-compose top, nmon, tload, kubectl top pod PODNAME, sar, kubectl top, glances, vmstat, gpustat, asitop
• Security information and event management (SIEM)
• Performance, monitoring, sysstat, metrics, Telemetry

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