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5 Securing EDB Ark : 5.1 Modifying a Security Group for an OpenStack Hosted Console

To access a list of security groups for the currently running clusters, connect to the OpenStack console and select Access & Security from the Compute menu. Click the Manage Rules button to the right of a cluster name to view detailed security group rules for the cluster (see Figure 5.1).
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To add a rule that opens a port for ssh connections to a cluster, click the Add Rule button in the upper-right corner of the Manage Security Groups window. When the Add Rule dialog opens, use the drop-down listbox in the Rule field to select SSH.
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When you select SSH, the Add Rule dialog will change to display only those fields that are required to define a rule that allows an SSH connection (see Figure 5.2). Use the fields to specify your connection preferences:
Use the Remote drop-down listbox to specify the type of traffic that will be allowed to connect via this rule. The connection options for an SSH rule are CIDR and Security Group; the default is CIDR.
Use the CIDR field to specify who may connect via the new rule:
If you selected CIDR, provide the CIDR-formatted address or addresses that are allowed to connect to the server via ssh. By default, the OpenStack console displays the address 0.0.0.0/0, opening port 22 for connections from any host.
If you selected Security Group, use the Security Group and Ether Type drop-downs to make the appropriate system-specific selections.

5 Securing EDB Ark : 5.1 Modifying a Security Group for an OpenStack Hosted Console

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