Monitoring

A Raspberry Pi in a data centre watches your websites and servers from a place that doesn't share their outages. When your home connection or a server at another provider goes down, the monitoring knows and tells you.

What to monitor with

• Uptime Kuma for website uptime and certificate expiry, with alerts by email, Telegram or Slack,
• Prometheus with Grafana for metrics and graphs,
• Zabbix or Icinga when you also watch network devices over SNMP.

docker run -d --restart=always -p 3001:3001 \
  -v uptime-kuma:/app/data louislam/uptime-kuma:2

A Raspberry Pi 5 with 4 GB of RAM handles monitoring for a small company or a home lab.