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This object creates and configures a DNS group object, a DNS Client on the SBC capable of communicating with external DNS servers to resolve domain names.
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To View DNS Group
On the SBC main screen, go to Configuration > System Provisioning > Category: Base Provisioning >DNS > DNS Group. The DNS Group window is displayed.
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To Edit DNS Group
To edit any of the DNS Groups in the list, click the radio button next to the specific DNS Group name.
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The Edit Selected DNS Group window is displayed below.
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Make the required changes and click Save at the right hand bottom of the panel to save the changes made.
To Create DNS Group
To create a new DNS Group, click New DNS Group tab on the DNS Group List panel.
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The Create New DNS Group window is displayed.
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The following fields are displayed:
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Parameter | Description | ||
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Name | Name of the DNS Group. Must be 1-23 characters. This field is mandatory. | ||
Type | Specifies the Interface type. Based on the type, the following Interface will be displayed:
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Transport | Specifies the option provided to select the transport protocol for DNS query. The options are:
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Mgmt Interface | Specifies the management interface group name.
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IP Interface | Specifies the IP interface group name.
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Use Configured DNS Server | The configured DNS server, when enabled, is used to resolve domain names that do not exist in local cache. The options are:
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EDNS Support | Enable flag to support Extension mechanisms for Domain Name Systems (EDNS) for statically configured and dynamically learned DNS servers. The options are:
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To Delete DNS Group
To delete any of the created DNS Groups, click the radio button next to the specific DNS Group which you want to delete.
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Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.
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Click Yes to remove the specific DNS Group from the list.
DNS Group Commands
To view the DNS Group Commands for any specific DNS Group, click the radio button next to the specific DNS Group to highlight the row.
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The DNS Group Commands window is displayed at the bottom of the screen.
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The option displayed is:
Clear Cache: Clears the cache of matching records.DNS Server Reset: Resets all the DNS server statistics.Query: Performs the DNS query to the server.Update Ttl: Updates the Cache of the matching record with the new TTL value.
Clear Cache
Choose Clear Cache to clear the cache and click Select.
A pop window appears seeking your confirmation to execute.
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The following fields are displayed:
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Domain Name | Enter domain to be cleared. |
Record Type | Specifies whether to use the DNS server for just A-record lookups or for full NAPTR/SRV/A lookup as specified in RFC3263. The options are:
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Make the required changes and click clearCache button to confirm. The result of the action is displayed.
Click OK to complete.
DNS Server Reset
Choose DNS Server Reset to reset all the DNS servers and click Select.
A pop window appears seeking your confirmation to execute.
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Click DNS Server Reset button to confirm. The result of the action is displayed.
Click OK to complete.
Query
Choose Query to query a DNS server and click Select.
A pop window appears seeking your confirmation to execute.
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The following fields are displayed:
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DNS Server | Enter a DNS Server to be used to perform lookup. |
FQDN | Enter domain to be looked up. |
Record Type | Specifies whether to use the DNS server for just A-record lookups, or for full NAPTR/SRV/A lookup as specified in RFC3263.
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Make the required changes and click query button to confirm. The result of the action is displayed.
Click OK to complete.
Updated Ttl
Choose Updated Ttl to update the cache of the matching record with the new TTL value and click Select.
A pop window appears seeking your confirmation to execute.
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The following fields are displayed:
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FQDN | Enter FQDN to be updated from the Cache.. |
Record Type | Specifies whether to use the DNS server for just A-record lookups, or for full NAPTR/SRV/A lookup as specified in RFC3263.
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Ttl | Enter new TTL value. |
Make the required changes and click Updated Ttl button to confirm. The result of the action is displayed.
Click OK to complete.
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