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Re: Why do UID values of system users matter?





On Fri, Aug 16, 2019 at 10:18 PM Steffen Dettmer <steffen.dettmer@gmail.com> wrote:
Hi,

thanks for your quick reply.

I see, multiboot with different /etc but shared /usr or /local could invite a lot of trouble if using different UIDs, indeed! Thanks for the quick explanation.

> (Apparently man used uid 13 in Debian 8 / Jessi but 6 in Debian 9 /
> Stretch).

AFAICS, user "man" has had UID 6 since at least Debian 6/squeeze
 
From looking at an Ubuntu 16.04 System I administer, User "man" (uid 6) is, apparently the owner of /var/cache/man, which appears to be an area for translating man pages.  Who creates this User?  

 Ohh, this is interesting, so I wonder why I had a different value then, maybe something else was wrong with my system then...

Could  there be multiple Packages that might attempt to Create that User (man)?  

Best regards,

Kenneth Parker

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