Community Training Classes & Labs > DNS Services Index

7. Results

  1. From the Workstation command prompt type “dig www.example.com”

    ../../_images/dc01_new_delegation_create_cname_results.png
  2. Observe WIDEIP statistics on gtm1.site1: Statistics ›› Module Statistics : DNS : GSLB ›› Wide IPs : www.gslb.example.com : A

    https://gtm1.site1.example.com/tmui/Control/jspmap/tmui/globallb/stats/wideip/stats_detail.jsp?name=%2FCommon%2Fwww.gslb.example.com&type=1&identity=www.gslb.example.com+%3A+A

    ../../_images/gtm1_site1_wideip_statistics_flyout.png ../../_images/gtm1_site1_wideip_statistics_detail.png

    TMSH

    tmsh show gtm wideip a www.gslb.example.com

  3. Observe WIDEIP statistics on gtm1.site2: Statistics ›› Module Statistics : DNS : GSLB ›› Wide IPs : www.gslb.example.com : A

    https://gtm1.site2.example.com/tmui/Control/jspmap/tmui/globallb/stats/wideip/stats_detail.jsp?name=%2FCommon%2Fwww.gslb.example.com&type=1&identity=www.gslb.example.com+%3A+A

  4. Disable physical interfaces on gtm1.site2:

    https://gtm1.site2.example.com/tmui/Control/form?__handler=/tmui/locallb/network/interface/list&__source=disable&__linked=false&__fromError=false

    ../../_images/gtm1_site1_disable_interfaces.png

    TMSH command to run on only gtm1.site2:

    TMSH

    tmsh modify net interface all disabled

  5. Refresh statistics on gtm1.site1 and make sure DNS requests are still resolving.

    https://gtm1.site1.example.com/tmui/Control/jspmap/tmui/globallb/stats/wideip/stats_detail.jsp?name=%2FCommon%2Fwww.gslb.example.com&type=1&identity=www.gslb.example.com+%3A+A

  6. Re-enable interfaces on gtm1.site2, disable interfaces on gtm1.site1. Observe statistics on gtm1.site2 and make sure DNS requests are still resolving.

    TMSH command to run on only gtm1.site2:

    TMSH

    tmsh modify net interface all enabled

  7. Observe pool statistics on gtm1.site1: Statistics ›› Module Statistics : DNS : GSLB ›› Pools : www.example.com_pool : A

    https://gtm1.site1.example.com/tmui/Control/jspmap/tmui/globallb/stats/pool/stats_detail.jsp?name=%2FCommon%2Fwww.example.com_pool&pool_type=1&identity=www.example.com_pool+%3A+A

    ../../_images/results_pool_statistics.png

    TMSH

    show gtm pool a www.example.com_pool

  8. Using Putty, ssh into gtm1.site1 and run the following command to watch logs:

    TMSH

    tail -f /var/log/ltm