adminCloud VPS Architecture Foundation Checklist
A cloud VPS is not just a remote computer. It is part of an architecture that includes compute, storage, network, DNS, firewall, backup, monitoring and recovery. This checklist gives you the foundation for thinking like a cloud operator.
Core principle
Every cloud system needs four things: a place to run, a way to receive traffic, a way to protect itself and a way to recover.
Checklist
- Define what the VPS will run.
- Choose CPU and RAM based on workload.
- Choose disk size based on data and backup needs.
- Decide which domains point to the VPS.
- Define public ports and private services.
- Set firewall rules.
- Set backup and snapshot policy.
- Set monitoring and alerts.
- Document admin access and recovery path.
- Review whether one VPS is enough or separation is needed.
Reusable lesson
Architecture is about tradeoffs. A cheap single VPS is simple, but it concentrates risk. A separated system is safer, but harder to operate.
When to Use This Checklist
Use this checklist before building a VPS-based website, WordPress stack, Docker stack or AI automation system.
Required Tools
VPS provider, domain access, DNS, firewall, backup option, monitoring tool, workload estimate
Before You Start
Do not choose a VPS only by price. First define workload, data, traffic, recovery needs and operational complexity.
Structured Checklist Steps
- Define workload.
- Estimate CPU and RAM.
- Estimate disk.
- Map domains.
- Define public ports.
- Define private services.
- Set firewall.
- Plan backup.
- Plan monitoring.
- Decide if separation is needed.
Verification Steps
- Workload is clear.
- Resource size is justified.
- Firewall rules are known.
- Backup policy exists.
- Recovery path is documented.
Rollback Plan
If the initial architecture becomes unstable, do not keep patching blindly. Re-evaluate workload size, separation, backup strategy and monitoring.
Common Mistakes
- Putting everything on one tiny VPS without backup.
- No monitoring.
- No recovery plan.
- Opening unnecessary ports.
- Ignoring disk growth.
Related Commands
free -h
df -h
sudo ufw status
dig example.com
curl -I https://example.com
systemctl list-units --type=service --state=running