Server Service Check: Best Practices for Uptime and Alerts

Server Service Check: 7-Step Daily Health Checklist

Keeping servers healthy requires routine checks to catch issues before they affect users. Use this concise 7-step daily checklist to ensure critical services are running, responsive, and secure.

1. Verify Service Processes and Status

• What to check: Confirm required daemons/processes (web server, database, caching, message broker, monitoring agents) are running.
• How: Use system tools (systemctl, service, ps) or orchestration commands (kubectl, docker ps).
• Action: Restart failed services and note recurring failures for investigation.

2. Confirm Network Connectivity and Ports

• What to check: Server can reach dependencies and listens on expected ports.
• How: Use ping/traceroute for dependency reachability and netstat/ss or lsof to confirm listening ports. Test application endpoints with curl or a health-check URL.
• Action: Resolve DNS, firewall, or routing issues; ensure load balancer health checks are aligned with service ports.

3. Check Resource Utilization

• What to check: CPU, memory, disk usage, and I/O wait to detect capacity pressure.
• How: Use top/htop, vmstat, free, iostat, and df -h. Pay special attention to disks near capacity and swap usage.
• Action: Free space, increase resources, or scale horizontally if sustained high usage is observed.

4. Validate Application-Level Health

• What to check: End-to-end application flows and key endpoints return expected responses.
• How: Run scripted smoke tests or synthetic transactions that perform basic reads/writes and authentication flows.
• Action: Roll back recent deployments if smoke tests fail, or escalate to developers with logs and traces.

5. Inspect Logs and Error Rates

• What to check: Recent errors, exceptions, or spikes in error rates across services.
• How: Review centralized logs or use logging/observability tools to filter for errors, WARNs, and stack traces. Check APM metrics for latency spikes.
• Action: Triage high-severity logs and create tickets for recurring issues; implement temporary mitigations if needed.

6. Verify Backups and Persistence

• What to check: Recent backups completed successfully and data persistence systems are healthy.
• How: Confirm backup job status, sample-restore a recent backup periodically, and check replication lag for databases.
• Action: Fix failing backups immediately and document recovery steps; test restoration on a sandbox when possible.

7. Confirm Alerts, Monitoring, and Security Posture

• What to check: Monitoring alerts are functional, alert routing is correct, certificates are valid, and recent security events are reviewed.
• How: Check monitoring dashboards, alert queues, and certificate expiration dates. Review recent authentication logs and vulnerability scans.
• Action: Tune alert thresholds to reduce noise, renew/replace expiring certificates, and escalate suspicious security findings.

Quick Daily Routine (2–10 minutes)

1. Check critical service statuses and restart if needed.
2. Run health-check URL and smoke tests.
3. Scan dashboards for resource spikes and error alerts.
4. Verify backups and certificate expirations.
5. Skim centralized logs for new critical errors.

When to Escalate

• Repeated service crashes or services failing to restart.
• Data corruption or failed backups.
• High and sustained resource usage impacting performance.
• Security incidents (unauthorized access, signs of compromise).

Use this checklist as a daily habit and integrate as automated checks where possible (monitoring, cron jobs, or orchestration probes) to reduce manual effort while keeping server services reliable.