3.3. Results

Now that the BIG-IP has transfered the zone, we can look at status and if needed dump the zone. To check the status:

  1. Click on the newly created example.com zone and make sure it is showing green for ‘Available’ indicating that the initial AXFR transfer was successful.

    ../../_images/DNS_Express_result1.png

You can use the dnsxdump utility to view the DNS Express database information, which includes zone information and statistics.

  • The DB Dump section of the dnsxdump utility output displays the zone information for all configured DNS Express zones.
  • The DB Stats section of the dnsxdump utility output displays a cumulative count of records for all configured DNS Express zones.
  1. From the Web Shell of SSH session to the BIG-IP:

Run the following command to see the contents of the DNS Express database from the Advanced Shell (not tmsh):

#dnsxdump | less

Examine the results

To see or troubleshoot zone transfers, we can refer to the /var/log/ltm log file. A quick examination of the log should show a successful zone transfer in the lab:

#tail -100 /var/log/ltm | grep zxfrd
../../_images/mod3lab3.png