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<?xml version='1.0' encoding='UTF-8'?>
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<!DOCTYPE sections SYSTEM "/dtd/book.dtd">
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<!-- The content of this document is licensed under the CC-BY-SA license -->
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<!-- See http://creativecommons.org/licenses/by-sa/1.0 -->
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<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-finalise.xml,v 1.39 2005/01/04 18:11:20 swift Exp $ -->
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<sections>
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<version>1.36</version>
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<date>2005-03-21</date>
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<section>
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<title>User Administration</title>
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<subsection>
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<title>Adding a User for Daily Use</title>
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<body>
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<p>
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Working as root on a Unix/Linux system is <e>dangerous</e> and should be avoided
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as much as possible. Therefore it is <e>strongly</e> recommended to add a user
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for day-to-day use.
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</p>
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<p>
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The groups the user is member of define what activities the user can perform.
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The following table lists a number of important groups you might wish to use:
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</p>
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<table>
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<tr>
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<th>Group</th>
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<th>Description</th>
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</tr>
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<tr>
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<ti>audio</ti>
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<ti>be able to access the audio devices</ti>
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</tr>
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<tr>
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<ti>cdrom</ti>
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<ti>be able to directly access optical devices</ti>
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</tr>
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<tr>
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<ti>floppy</ti>
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<ti>be able to directly access floppy devices</ti>
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</tr>
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<tr>
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<ti>games</ti>
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<ti>be able to play games</ti>
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</tr>
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<tr>
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<ti>usb</ti>
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<ti>be able to access USB devices</ti>
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</tr>
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<tr>
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<ti>video</ti>
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<ti>
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be able to access video capturing hardware and doing hardware
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acceleration
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</ti>
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</tr>
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<tr>
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<ti>wheel</ti>
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<ti>be able to use <c>su</c></ti>
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</tr>
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</table>
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<p>
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For instance, to create a user called <c>john</c> who is member of the
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<c>wheel</c>, <c>users</c> and <c>audio</c> groups, log in as root first
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(only root can create users) and run <c>useradd</c>:
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</p>
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<pre caption="Adding a user for day-to-day use">
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Login: <i>root</i>
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Password: <comment>(Your root password)</comment>
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# <i>useradd -m -G users,wheel,audio -s /bin/bash john</i>
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# <i>passwd john</i>
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Password: <comment>(Enter the password for john)</comment>
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Re-enter password: <comment>(Re-enter the password to verify)</comment>
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</pre>
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<p>
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If a user ever needs to perform some task as root, they can use <c>su -</c>
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to temporarily receive root privileges. Another way is to use the <c>sudo</c>
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package which is, if correctly configured, very secure.
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</p>
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</body>
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</subsection>
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</section>
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</sections>
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