Daily Must-Do

Check monitoring dashboard: CPU/RAM/disk/network within normal ranges. Set alert thresholds (CPU >80%, RAM >85%, disk >90%). Check error logs: web server errors (any 500/404 spikes?), app runtime exceptions?, system dmesg warnings?. Confirm backup success: auto-backup completed? files complete? periodic restore test done?

A 益阳 enterprise server hit 93% disk unnoticed until app crashed from inability to write logs. Cause: log file growing without logrotate. Daily disk check would have caught this months earlier.

Weekly Must-Do

Security patching: OS and app security patches during maintenance window. Clean unused resources: stale temp files, old rotated logs, unused Docker images, build artifacts. Review user accounts: disable no-longer-needed accounts, check sudo permissions, verify SSH key validity. Check cron jobs: all scheduled tasks running properly?

Monthly Must-Do

Performance analysis: compare metrics month-over-month. Capacity planning: predict next 3-6 month resource needs. Disaster recovery drill: restore from backup to test environment, record time and issues. Certificate/domain check: SSL cert expiring? Domain renewing soon?

Automation is Key

Manual execution unreliable and error-prone. Automate everything possible: Monitoring/alerting (Zabbix/Prometheus+Grafana). Log collection (ELK stack or cloud log services). Config management (Ansible/SaltStack). Backup automation (auto-schedule + auto-cleanup + result notification).

We built automated ops for a client: ops team shrank from 3 people to 1 person doing better work. That is automation power.