Configuring Container Network Parameters

The Configure Network screen displayed after clicking the Network tab on the Container dashboard and then clicking Configure on the Infrastructure Manager action menu allows you to configure the following Container network settings as follows:

• Under the Global Network group, you can:
  • Modify the Container hostname in the Hostname field. You can type any name you consider suitable, however, pay attention to the existing limitations on the use of symbols in the Container hostname. For a Windows Node, the hostname may start singularly with a-z, A-Z or an underscore ( _ ), contain further any of the following symbols: a-z, A-Z, 0-9, _, - and have a-z, A-Z, 0-9 or _ at the end. The maximum number of symbols is 15. For a Linux-based Container, the hostname should consist of a-z, 0-9, _, and may have a point in the middle. The number of symbols should not exceed 256.
  • Enter one or more DNS servers that this Container is supposed to use in the DNS Server IP Address field or leave it blank. Use the or icons to add/remove the DNS servers IP addresses accordingly. Note that the static values in these fields might be overridden if the Container gets the DNS servers from the DHCP server when operating in the bridged network mode.
  • Define a list for hostname lookups in the Search domain field. Use the or icons to add/remove the lookup parameters for the Container. The search list is normally determined by the domain name(s); by default, it contains the local domain name(s) only. You can also add external domain names for a particular Container. A search query is performed by attempting to use each item in the list in turn until a match is found. Note that this process may be slow and may generate a lot of network traffic if the servers for the listed domains are not local, and that the query might time out if no server is available for one of the domains. Note also that the static values in these fields might be overridden if the Container gets the search domains from the DHCP server when operating in the bridged network mode.

  The parameters defined under Global Network will apply to the Container regardless of whether it is on a bridged network or depends on the Hardware Node network interface.

• Select the Routed Network check box to make the default Container network adapter (venet0) operate in the host-routed. In this mode the Container uses the Hardware Node physical adapter as the default gateway to send and receive data to/from other networks. If the Routed Network check box is selected, you can specify an IP address ( and a subnet mask) to be assigned to the Container in the IP Address field. The field for the subnet mask is slash-separated from the IP address field. You can assign several IP addresses and, consequently, subnet masks (for a Windows-based Container) to the Container by clicking the icon to the right of the field containing the information on Container IP addresses ( and subnet masks). Clicking the icon near the field with the information on Container IP addresses ( and subnet masks) will remove the corresponding IP address and subnet mask (for a Container running Windows) assigned to the Container. You can leave the Subnet Mask field blank after you provide an IP address for the Container. Parallels Infrastructure Manager will use the default 255.255.255.255 subnet mask for the corresponding IP address.

  Note: If you have previously consolidated the IP addresses available on your Node into a range, it is recommended to check those of them that were assigned to Containers - when creating or configuring - on the Allocated IPs screen so that to be aware of the IP addresses already on use.

• Select the Bridged Network check box to make the Container Virtual Network adapters (except for the default one) operate in the bridged mode. When functioning in this mode, the Container can be connected to any of the Virtual Networks existing on the Hardware Node and joined thru them to external networks. If the Bridged Network check box is selected, you can:
  • Add a new virtual adapter by clicking the Add New Interface link and providing the necessary information in the displayed fields.
  • Connect the Virtual Network adapter to any of the existing Virtual Networks on the Node by choosing the corresponding Virtual Network name on the drop-down menu in the Connect to field.

    Note: To learn more about the notion of Virtuozzo Virtual Networks and their relation to physical adapters, VLAN adapters, and Containers, please refer to the Managing Virtual Networks section.

  • Leave the Get IP Address by DHCP check box selected to automatically assign an IP address to the Container adapter using the DHCP protocol or clear the check box and manually set the IP address, subnet mask (for a Windows-based Container), and default gateway for the Container.

After configuring the necessary Container network parameters, click the Submit button for the changes to take effect.

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