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Terms of Service

YunZheng LAB — AS204921 Educational & Research Computer Experimental Network
Last updated: 9 May 2026
YunZheng LAB is a non-profit educational and research initiative operated by Zhenyun Sun. All services are provided on a cost-recovery basis to support networking education, research, and experimentation. We do not operate for commercial profit.

1. Acceptance of Terms

By accessing or using services provided by YunZheng LAB ("we", "us", "our"), including but not limited to virtual machine hosting, BGP sessions, and network services available through yunzheng.space, you agree to be bound by these Terms of Service ("Terms"). If you do not agree, do not use our services.

2. Nature of Organisation

YunZheng LAB operates AS204921, a non-profit educational and research computer experimental network. Our mission is to provide affordable infrastructure for networking education, research, and experimentation. Any fees collected are used solely to cover operational costs including server hosting, bandwidth, IP address allocation, and infrastructure maintenance.

3. Eligibility

You must be at least 16 years of age to use our services. By creating an account, you represent that the information you provide is accurate and complete. You are responsible for maintaining the security of your account credentials.

4. Services

We provide the following services on a best-effort basis:

Service specifications (CPU, RAM, disk, bandwidth) are described on the order page at the time of purchase. We reserve the right to modify service offerings with reasonable notice.

5. Acceptable Use

You agree not to use our services for:

Violation of this policy may result in immediate suspension or termination of your services without refund.

6. Payment and Billing

7. Refund Policy

Due to the nature of our non-profit operation:

8. Service Availability

We strive for high availability but do not guarantee uninterrupted service. As a non-profit educational network:

9. Resource Limits

Each plan includes specified bandwidth and traffic allocations. If you exceed your monthly traffic quota, your connection speed may be reduced for the remainder of the billing period. Port speed and traffic limits are specified in your plan details.

10. Suspension and Termination

11. Intellectual Property

You retain all rights to content you host on our infrastructure. We claim no ownership over your data. You grant us only the limited rights necessary to provide the services (e.g., storing and transmitting your data).

12. Limitation of Liability

To the maximum extent permitted by law, YunZheng LAB and its operator shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits, data, or goodwill, arising from your use of our services. Our total aggregate liability shall not exceed the amount you have paid us in the 12 months preceding the claim.

13. Indemnification

You agree to indemnify and hold harmless YunZheng LAB and its operator from any claims, losses, or damages arising from your use of the services, your violation of these Terms, or your violation of any rights of a third party.

14. Changes to Terms

We may update these Terms from time to time. Material changes will be communicated via email or through the portal. Continued use of our services after changes constitutes acceptance of the updated Terms.

15. Governing Law

These Terms are governed by and construed in accordance with applicable law. Any disputes shall be resolved through good-faith negotiation before pursuing formal proceedings.

16. Contact

For questions about these Terms, please contact us: