This can happen in some CentOS systems due a too restrict configuration of /etc/sudoers file
.
To fix that, edit the /etc/sudoers
file as root and remote or comment the line:
Defaults requiretty
Next time your system boot up, tentacle_serverd should restart.
- See also:
https://pandorafms.com/manual/en/documentation/08_technical_reference/09_tentacle