No nodes in dashboard

Hi, I inherited a setup…no one seems to know anything…it seems that there is a “cert” issue, please advise on how I may proceed, acknowledge I have not given much to go by…

log files are null…systemctl status shows all good

  • Version used (icinga2 --version) 2.12.3
  • Operating System and version CentOS 7

Well, for a start, please tell us “how do you know that there is a ‘cert’

  1. Which machine displays a problem (Master / Satellite / Agent)?

  2. What (exactly) is the message saying there’s a problem?

  3. What (if anything) doesn’t work correctly?