Smokeping Failing to Start on Boot (Fedora 24)

I ran into an issue where smokeping wasn’t starting on boot on my fedora 24 systems. Checking the output of:

systemctl status smokeping

Showed me that dns requests were failing and smokeping terminated. So here’s how I fixed it.

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SSSD, AD UNIX Attributes, and SSH AllowGroups

So  I recently ran into an issue where we had the following setup:

  • Active Directory Domain
  • Realm joined RHEL 7 Hosts
  • A requirement for UNIX Attributes set in AD
  • sshd_config AllowGroups restrictions

However, the RHEL 7 hosts were not able to display  secondary/supplementary groups in AD when running id and thus, AllowGroups in sshd was failing.

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