A short routine.
UPDATES
Operating system and package updates applied Dependency vulnerabilities reviewed Anything approaching end of support identified
BACKUPS
Running successfully A restore spot-checked Retention within limits
CAPACITY
Disk, memory and processor use against capacity Growth trend noted
SECURITY
Access list reviewed for anyone who has left Authentication logs checked Nothing newly exposed
MONITORING
Every alert that fired, reviewed Any alert that was not actionable, changed or removed Scheduled tasks confirmed running
COST
Spend reviewed in your own currency Anything that grew, investigated Unused resources removed
CERTIFICATES AND DOMAINS
Expiry dates checked
DOCUMENTATION
Updated for anything that changed
WHAT TO RECORD
That the review happened, and anything found.