I am trying to find a way to count all Qualys Agents that were alive or checked in within a specific 30 days period. For example: I am trying to find all agents that has checked in or alive between the period of 2108-02-28 .. 2018-03-28
I used this command under CA module:
LastCheckedIn: [2018-02-28 ... 2018-03-28]
I am getting incorrect results, Also this number changes if you run same query in later time. So that tells me, its likely Qualys does not keep historic data of agents that check in.
My Question is simple but finding an answer to it has been challenging for me.
Is there a way to get an accurate or close enough numbers of active Qualys Agents for all workstations within a specific 30 days time?
Thanks to all who can help me in this regard.