<div dir="ltr">When doing systemctl-status on an old application, we are now seeing this error/warning: "systemd[1]: Refusing to accept PID outside of service control group, acquired through unsafe symlink chain" I tested to remove a symlink in the chain, but then got this instead: "New main PID xxxxx does not belong to service, and PID file is not owned by root. Refusing." And when trying to examine the pid-file, it wasn't even created. In spite of these errors/warnings, it seems the application is still working... So I am not sure when this error started appearing, but I suspect it has started after some RHEL OS-upgrade in the last year(s). googling didn't turn up much, so far.... Where can I find an explanation of these messages? What exactly is deemed "unsafe"? And what to do about it? <div> </div></div>