Using DNS Cache Analytics

In a stack, DNS analytics provides chcekpointing of data collected by the master node to the backup node. Similarly, analyzed data of VLANs, which are spanning across MLAG nodes are checkpointed.

Enabling/Disabling DNS Analytics

To enable DNS analytics, use the following command:

enable dns cache analytics {{vr} vr_name}

To disable DNS analytics, use the following command:

disable dns cache analytics {{vr} vr_name}

Clearing DNS Analytics

To clear the DNS analytics entries, use the following command:

clear dns cache analytics entries {{vr} vr_name}

Configuring DNS Analytics

To configure the timeout of entries or maximum number of entries for DNS analytics, use the following command:

configure dns cache analytics [{timeout minutes} {max-entries max_entries}]

To configure the protected client list for the DNS cache analytics, use the following command:

configure dns cache analytics [add | delete]protected-client [client_ip netmask | ipNetmask] {{vr} vr_name}

Showing DNS Analytics Information

To show the DNS analytics status (enabled or disabled) and the configured maximum entries and timeout period, use the following command:

show dns cache analytics configuration {{vr} vr_name}

To show the DNS analytics protected client list, use the following command:

show dns cache analytics protected-client {{vr} vr_name}

To show DNS queries received from clients, use the following command:

show dns cache analytics statistics {client client_ip domain domain_name } {detail} {{vr} vr_name}}