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Children Display

 

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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1DNS Group
 

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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1DNS - DNS Group Highlighted
 

 

The Edit Selected DNS Group window is displayed below.

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1DNS - DNS Group Edit
 

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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1DNS - DNS Group Fields
 

The Create New DNS Group window is displayed.

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1DNS - DNS Group Create
 

The following fields are displayed:

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1DNS Group Parameters
 

Parameter

Description

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:

  • IP—IP interface group name.
  • mgmt— Management Interface group Name.
  • None (default)
Transport

Specifies the option provided to select the transport protocol for DNS query. The options are:

  • UDP (default)
  • TCP 
Mgmt Interface

Specifies the management interface group name.

Note

This field appears only when Type field is selected as mgmt.

IP Interface

Specifies the IP interface group name.

Note

This field appears only when Type field is selected as IP.

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:

  • Disabled (default)
  • Enabled
EDNS Support

Enable flag to support Extension mechanisms for Domain Name Systems (EDNS) for statically configured and dynamically learned DNS servers. The options are:

  • Disabled (default) 
  • Enabled 

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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1DNS - DNS Group Highlighted
 

 

Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.

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1DNS Group Delete Confirmation
 

Click Yes to remove the specific DNS Group from the list.

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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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1DNS - DNS Group Highlighted
 

 

The DNS Group Commands window is displayed at the bottom of the screen.

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1Dns Group Admin Commands
 

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 dialogue box appears seeking your confirmation to execute.

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1Clear Cache
 

The following fields are displayed:

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1Clear Cache Parameters
 
ParameterDescription
Domain NameEnter 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:

  • A
  • Aaaa
  • Ns
  • Srv
  • Naptr
  • Default (default)

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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1Dns Group Commands pop-up
 

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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1Query Command
 

The following fields are displayed:

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1Query Parameters
 
ParameterDescription
DNS ServerEnter a DNS Server to be used to perform lookup.
FQDNEnter 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.

  • A (default)
  • Aaaa
  • Ns
  • Srv
  • Naptr

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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1Updated Ttl Command
 

The following fields are displayed:

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1Updated Ttl Parameters
 
ParameterDescription
FQDNEnter 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.

  • A (default)
  • Aaaa
  • Ns
  • Srv
  • Naptr
  • Default
TtlEnter 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.