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JCMATTOS_41723's avatar
JCMATTOS_41723
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Sep 29, 2010

DNS Monitor Issue?

All,

 

 

We have tried using the DNS Monitor posted on Dev Central http://devcentral.f5.com/wiki/defau...ookup.html and can't seem to get this working. I followed the instructions as best I could, when I do a tcpdump I don't even see the monitor being generated. I placed the montior txt script in its proper repository /usr/bin/monitors/DNS_Monitor.txt with 700+ permissions and added the arguments "test1.xyz.com" "10.10.10.10" and still nothing. Am I missing something?

 

 

[root@F5-LTM1:Active] config ls -la /usr/bin/monitors

 

total 32

 

drwxr-xr-x 3 root root 4096 Sep 22 15:44 .

 

drwxr-xr-x 3 root root 12288 May 15 17:47 ..

 

-rwx------ 1 root root 1494 Sep 22 10:06 DNS_Monitor.txt

 

  • Hi JC,

     

     

    Do you get an UP message if you run the monitor manually from the command line?

     

     

    If that doesn't work, you can add debug to the script using this template as a guide:

     

     

    http://devcentral.f5.com/wiki/default.aspx/AdvDesignConfig/TemplateForExternalLtmMonitors.html

     

     

    Aaron
  • I did a cli test and it shows UP.

     

    [root@F5-LB2:Active] config /usr/bin/monitors/DNS_Monitor.txt 10.10.10.10 53

     

    UP

     

     

    I'll try the debug next and let you know the results. Thx Aaron!

     

  • Aaron,

     

    Question wanted to see if my argument syntax was correctly stated as well, it seems i see a lot of conflicting documents on how to apply this thru the GUI.

     

    [root@F5-XX-LB1:Active] config b monitor DNS_Monitor list

     

    monitor DNS_Monitor {

     

    defaults from external

     

    interval 10

     

    timeout 35

     

    args "test1.xyz.com 10.10.10.10"

     

    run "DNS_Monitor.txt"

     

    }