Information about VDC

A virtual data center (VDC) is an isolated collection of virtual resources dedicated to your organization.

Virtual data center resources:

  • Virtual processor cores vCPU. From 2GHz per virtual core.
  • Virtual RAM
  • Storage (Storage policy) SATA, SAS or SSD.
  • Edge Gateway (VEG) - edge gateway, virtual gateway.

Edge Gateway is a cloud-based network management tool. It allows you to connect internal networks, as well as configure access to the Internet for virtual machines using a public IP address. VEG also allows you to configure Firewall, NAT, SSL and IPSec VPN, Load Balancing, etc.

Initially, each VDC creates one Edge Gateway, which is assigned an external IP address. One or more external IP addresses can be assigned to a VDC.

  • Data center network

The data center network allows you to connect your entire infrastructure. It is visible to all virtual machines and vApps in the data center. Any connection to external resources also goes through this network.

  • Catalogs

The Catalogs can store templates for virtual machines and vApps, installation images (ISO) of the OS. Initially, your VDC is given access to public catalogs that contain vApp templates and installation images (ISO) of popular operating systems.

  • Virtual machines (VM)

Virtual machines are the main component of the cloud infrastructure. They use cloud resources and are suitable for hosting applications and services. By default, there are no VMs created in the VDC. VMs can be deployed from templates or built from scratch.

  • vApp containers

vApp is a logically separate part of the cloud that allows you to combine VMs into a group. In vApp, you can create your own isolated network, which will be visible only to the VM inside this vApp.

You can use the dedicated resources however is suitable for you. You can create a new virtual machine and manage its resources. It is also possible to create independent vApps with isolated networks.

Access to the VDC is carried out using the login and password that you received from the manager. VCloud Director control panel addresses:
For Moscow site:

For St. Petersburg site:


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business challenge

The customer faced a technical issue with a persistent BGP session flag with Linxdatacenter hardware. We examined the problem and found out that one of customer’s hosts was under a DDoS attack.

Because of the distributed nature of the attack, traffic couldn’t be filtered effectively, and disconnecting the host from the external network wasn’t an option. The attack stopped after changes in the server configuration, but resumed the day after. A 5.5 Gbps attack overloaded the junctions with internet providers, affecting other Linx Cloud users. To mitigate the effects of the attack, we employed a dedicated DDoS protection service.


To ensure the continuous availability of resources hosted in Linx Cloud, we rerouted all the customer’s traffic through StormWall Anti-DDoS system. The attack was stopped within half an hour. To prevent future cyberattacks, we organized all connections to the customer’s resources through the StormWall network.

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