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28.
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To change how often Ubuntu checks for updates, or to set updates to install or download automatically, choose <menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Software Sources</guimenuitem></menuchoice>, and then <guilabel>Internet Updates</guilabel>.
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(no translation yet)
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29.
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Lock your screen while away
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:82(title)
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30.
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Locking your screen prevents other people from accessing your computer while you are away from it. All of your applications and work remain open while the screen is locked, and the screensaver is displayed.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:83(para)
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31.
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You can lock your screen in one of the following ways:
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:84(para)
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32.
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Press <menuchoice><guimenu>System</guimenu><guimenuitem>Quit...</guimenuitem><guimenuitem>Lock Screen</guimenuitem></menuchoice>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:90(para)
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33.
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Press <keycombo><keycap>Control</keycap><keycap>Alt</keycap><keycap>L</keycap></keycombo> to lock the screen. This keyboard shortcut can be changed in <menuchoice><guimenu>System</guimenu><guimenuitem>Preferences</guimenuitem><guimenuitem>Keyboard Shortcuts</guimenuitem></menuchoice>.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:90(para)
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34.
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You can add a <guibutton>Lock Screen</guibutton> button to a panel for easy access. Right-click a panel (for example, the panel at the top of the screen), select <guibutton>Add to Panel...</guibutton> and drag the <guibutton>Lock Screen</guibutton> item to the desired location.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:98(para)
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35.
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To unlock the screen, move the mouse or press a key. Then, type your password and either press the <keycap>Return</keycap> key or press the <guibutton>Unlock</guibutton> button.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:102(para)
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36.
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If more than one person has a user account on your computer and the screen is locked, other users can press the <guibutton>Switch user...</guibutton> button to use the computer, even while the screen is locked. They will be unable to access your currently-open work, and you will be able to switch back to your locked session when they have finished using the computer.
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:100(para)
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37.
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Set up a firewall
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(no translation yet)
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Located in
keeping-safe/C/keeping-safe.xml:103(title)
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