You describe a way for a root-process to fork a *NEW* process with a different effective UID.

But the question was a bit weirder (if I understand if correctly) namely weather it is possible to change the id of a RUNNING process.

And I believe the answer to that is no - at least not with normal syscalls and certainly not with Perl.

In reply to Re^2: How to change the userid of a running external process by morgon
in thread How to change the userid of a running external process by macron0

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