Re: system users with dot in the name

shrek-m_at_gmx.de
Date: 05/15/04

  • Next message: Patrick Boutilier: "Re: FC2 Available for Download May 14??" 
    Date: Sat, 15 May 2004 13:49:31 +0200
To: For users of Fedora Core releases <fedora-list@redhat.com>

    Tommy Reynolds wrote:

    >Uttered Douglas Furlong <douglas.furlong@firebox.com>, spake thus:
    >
    >>However I have read some suggest "."'s in the name may be a very bad
    >>thing.
    >>

    my opinion:
    a "." in the username is no bad thing
    a "@" in the username, i do not need it

    # useradd test@user
    # userdel test@user

    >> One example was the chown command, on some systems you could have
    >>a user named John, and Group name Smith, and another user John.Smith.
    >>
    >>
    >The chown form "name.group" is now deprecated.
    >
    >The preferred form is
    >now "name:group".
    >

    it was always "user:group"
    a few yeras agoo i have heard the first time about the possibility to use
    "user.group" instead "user:group"

    $ man chown
    [...]
    SYNOPSIS
           chown [OPTION]... OWNER[:[GROUP]] FILE...
           chown [OPTION]... :GROUP FILE...

    afaik under rhl <= 7.3 it was no problem to use dot_named_users:

    ?? is it in bugzilla ??

    # cat /etc/redhat-release
    Red Hat Linux release 7.3 (Valhalla)

    # useradd test.user

    # passwd test.user
    Changing password for user test.user.
    New password:
    BAD PASSWORD: it's WAY too short
    Retype new password:
    passwd: all authentication tokens updated successfully.

    # grep test.user /etc/passwd /etc/group
    /etc/passwd:test.user:x:506:507::/home/test.user:/bin/bash
    /etc/group:test.user:x:507:

    # ll /home/ | grep test
    drwx------ 3 test.use test.use 4096 Mai 15 12:55 test.user

    # mkdir te.us
    # ll | grep te.us
    drwxr-xr-x 2 root root 4096 Mai 15 13:05 te.us

    # chown test.user:test.user te.us/
    # ll | grep te.us
    drwxr-xr-x 2 test.use test.use 4096 Mai 15 13:05 te.us

    # mail -sbla test.user
    blubber 

    -- 
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