For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

NTP Monitor

Problem this snippet solves: Version 9 (tested on v9.2.4) Based on F5's example monitor, with the NTP check added. We make sure that the node gives us an NTP response and that the node hasn't beco...
Published Mar 12, 2015
Version 1.0
application delivery
devops
LTM
monitor
WeaverJK's avatar
WeaverJK
Icon for Nimbostratus rankNimbostratus
May 08, 2017

Mark, thanks for your input.

 

Mark, thank you for explaining the Net::NTP section. I Googled it earlier but did not make the connection to the file structure as you explained it. I have no experience with "perl" at this time.

 

I changed the actual directory structure as suggested -> /shared/lib/perl5/Net/NTP.pm. I left the "use lib" statement as per the code in this article (use lib "/shared/lib/perl5";). I used the Configuration Utility to examine the external monitor. I discovered about six instances of invalid characters (was a question mark inside a black diamond). I removed these characters.

 

Tried the monitor again and the members went to red diamond down.

 

Any other thoughts? Thanks!