User dot Linux Anyone mean what is it?

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vasiliy02016-09-06 21:39:27

linux

vasiliy0, 2016-09-06 21:39:27

I have a user dot (.) on my machine. Oracle system. Does anyone know what it is?

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3 answer(s)

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Alexey Skobkin, 2016-09-06
@skobkin

I don't know the specifics of your distribution, but in general "hidden" directories start with a dot. Perhaps someone is trying to hide the creation of the user.

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vasiliy0, 2016-09-06
@vasiliy0

cat /etc/shadow there user .
he appeared unexpectedly
thanks for the answer

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Danila, 2016-09-07
@Ke1eth

OEL has no specifics as such, it is RHEL, the difference is only in licensing and technical support.
Further, the period in usernames is not encouraged, but not prohibited, so the creation of such a user is allowed, however, when trying to create a home directory /home/. a warning will be thrown because the . points to itself, in this case /home
It turns out that "visually" the user is "as if" not noticeable.
I would recommend removing the user from shadow and from group, but first search the file system for traces of his activity, as well as traces of his creation.