# FAQ

- [vServer](/vng-cloud-document/faq/vserver.md)
- [vStorage](/vng-cloud-document/faq/vstorage.md)
- [vNetwork](/vng-cloud-document/faq/vstorage-1.md): vNetwork is a network service that provides a secure and isolated network environment for your virtual machines (VMs) in the GreenNode platform.
- [vCDN](/vng-cloud-document/faq/vcdn.md)
- [vDB](/vng-cloud-document/faq/vdb.md)
- [NTP server](/vng-cloud-document/faq/ntp-server.md)
- [DDoS](/vng-cloud-document/faq/ddos.md): Overview of DDoS Protection in GreenNode