Since most of these people are new to Linux and Ubuntu, or switching from Windows, they want to know how to view their computer name from the desktop, like they can in Windows.

Fortunately Ubuntu is user friendly and this can be easily accomplished from the GUI or at the command prompt.

To see your computer name from Ubuntu's desktop, just click on the Shutdown icon on the top panel next to the date and time, and select Lock screen.

The lock screen will appear (if it does not, just click anywhere on the desktop or press any key) and your computer name will be displayed.

That was easy.

To view your computer name from the command prompt, click on Application \ Accessories \ Terminal from the top panel.

You will quickly discover that the Terminal window is more than happy to display your see the computer name which is shown after your username and in the title bar.

You can also execute the command hostname which will also display the computer name as well.

Now that you know how to view and display the computer name on your Ubuntu system, find out what else you can do in our Ubuntu tips section.

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For any Window user who is new to Ubuntu and Linux, more than likely the first problem you will encounter is making sure your Ubuntu computer has been configured with an IP Address if you run into network problems.

On Windows computers viewing the address is a simple task…while finding your IP address in Ubuntu is just as easy using a built-in graphical tool or a terminal window.

For new Windows users to Ubuntu Linux, the best way to find your IP Address is to right click on the network icon on the top panel System tray and select Connection Information from the menu.

Once the Connection Information window opens, all active network connections will be displayed showing the IP address, Subnet Mask, Default Route, Primary DNS as well as other useful information such as the adapter MAC address (shown as Hardware Address).

More than likely, your connection will be eth0 (ethernet adapter 0), which is the case on my computer and is a wired connection.

When finished reviewing click Close to exit.

For those who prefer to work at the command prompt, open a Terminal Window by clicking on Applications \ Accessories \ Terminal.

To display your computer IP address, enter the following command at the command prompt:

ifconfig

You will see the information displayed similar to the below screen shot. On my computer my IP Address is shown next to inet addr for adapter eth0.

For Windows users, ifconfig is a somewhat familiar tool to ipconfig which is used to display the computer IP Address as well as to reset other network adapter settings.

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Say you are troubleshooting a problem and need to back-track on when a package was installed. Or if you are a Windows user who has switch to Ubuntu and is not familiar with how to check when a package was installed.

Fortunately there are a few ways to find out. In this article, we'll look at how to view installed packages by date using Synaptics Package Manager and from the command prompt using a Terminal window.

Using Synaptics Package Manager

To open Synaptics,  on the top panel, click on System \ Administration \ Synaptics Package Manager.

If prompted, enter your password to proceed.

Once Synaptics Package Manager opens, from the menu, click on File \ History.

In the history window, you will see the dates of when packages were installed. Just click on the arrow next to the date to expand the list, then click on the date to view what packages (and their dependency) were installed on that day.

If you have a larger list (than mine), you can also search for packages using the Find search at the bottom.

Using Terminal Window

If you prefer to work at the command prompt, open a Terminal window by clicking on Application \Accessories \ Terminal.

At the prompt, you can view installed packages by date, by viewing the /var/log/dpkg.log file using the following command:

cat /var/log/dpkg.log | grep "\ install\ "

The dpkg.log file will rotate and archive weekly (for more information on log rotating see Ubuntu Guide For Windows Users: Manage Log File Size). If you don't see previous dates, then list the contents of the /var/log directory for dpkg log files that may exist.

To list the content of a directory, use the following command:

ls -l /var/log

To list just dpkg.log files, use the following command:

ls -l /var/log/dpkg*

Now that you know how to view installed packages by date, switching over to Ubuntu for Windows users should be a little less intimitading.

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For me, one feature that I don't like is the delayed shutdown. When I'm ready to shutdown my desktop I want it to begin shutting down immediately.

Unfortunately the default setting for shutting the system down in version 9.04 is a one minute delay. You do have the option of canceling the shutdown or clicking another button to…shut it down (what is this Microsoft thinking??)

One clicks to many.

If you want change this behavior and just have the system shutdown, keep reading.

To disable the delayed shutdown:

• Right click on the switch users or shutdown icon (upper right corner on the top panel) and select Preferences.

• In the User Switcher Preferences window, click on the box to uncheck the setting for Show conform dialogs for logout, restart and shutdown.

• Then click the Close button to save the modification.

The change is immediate and your system will shutdown  immediately next time you want to shut down your computer. This change also eliminates delays for logoffs and restarts.

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It's replacement is an annoying update manager that seems to have a mind of it's own.

Personally, I like the old notification icon that let me know of pending updates.

Instead, with Ubuntu 9.04, the update manager starts automatically and is displayed on screen when updates have been available for a week or more. You are informed of security updates within 24 hours, via a one time notification in the corner of the screen.

If you want to get back the normal notification icon method used in previous versions of Ubuntu, you can run a simple command or use gconf configuration tool to make the change (NOTE – the icon has been changed to a down arrow icon).

From Terminal Window

Using the command line, open a Terminal window, by clicking on Application \ Accessories \ Terminal from the top panel menu.

Then paste and enter the following command at the prompt:

gconftool -s --type bool /apps/update-notifier/auto_launch false

If you decide you want to revert back to the new notification method in Ubuntu 9.04, just use the following command:

gconftool -s --type bool /apps/update-notifier/auto_launch true

From GConf  Tool

If you are not a fan of the command prompt, you can easily make this change using the GUI tool gconf editor.

Just press ALT-F2 on the keyboard, and in the run box, type gconf-editor then click on Run (enter your password if prompted).

Once the Configuration Editor opens, in the left pane, click on the arrow next to Apps, then scroll down to update-notifier and click on it.

In the right pane, uncheck the check box next to auto_launch and close the editor (changes are automatically saved).

(To revert back to new notification method in Ubuntu 9.04, just re-edit and check the box).

You will now have the old automatic update manager notification working again (with the new icon) displayed in the system tray next time an update is available.

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In a previous tip, I showed you how you can use Firefox to browse your hard drive for files and folders. This tip works great when you want to keep the number of applications open to a minimum or you are using Firefox on a portable USB Drive.

Another cool feature is the capability to view files and folders or play music and video files in Firefox simply using drag and drop.

Say you have an MP3 file on your desktop, instead of double clicking on it, and using the default player to play the MP3 file, just drag it inside an open Firefox window, and it will start to play.

Or if you have a PDF file, just drag and drop in Firefox and the PDF file will open in Firefox. You can open text files, even drag and drop a folder to view the contents.

Now, for this to work with different file types in Firefox, plugins must be installed and the file type associated with the plugin (see Configure FireFox To Open Different Types Of Files).

For example, to view PDF files, you will need to have the Adobe PDF plug-in  installed and to play audio or view video, you can use the QuickTime plugin (by default the file type extension will be associated in Firefox after  a plugin is installed).

If you try to drag and drop a file that does not have a plugin installed or it's file type associated (in Firefox), Firefox will prompt you for how to open the file or if you want to save it to your Computer (this is the typical dialog box you will see when saving files).

You might wonder why or what uses drag and dropping files or folders into Firefox can be used for.

For one, if you run applications off a USB thumb drive (such as PortableApps.com), you can use this feature without needing to install the application, or keep a portable version, if one exist.

But the best reason is if your work restricts using any kind of media player. As long as you have the right plug-ins installed, you can listen to music or watch videos without breaking the rules!

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To do so, open up Nautilis (click on Places in the top panel menu then open your home directory) and find the file type that you want to change the association.

In the example below, say you wanted to change the default association for .txt files, which is GEDIT to another program. To change it, just right click on the file and select Properties.

Next, select the Open With tab, then select the program from the list by clicking on the radio button next to the program. Click on the Close button to save the setting.

If the program you want to use was not in the list, click on the Add button at the bottom, then in the Add Application dialog window, select the program you want to use from the list.

Notice that you can also click on the arrow icon next to Use a custom command (circled in above screen shot) and browse anywhere on your computer to select a program. You can also add custom command parameters to the program executable when launching the program.

That's it. The next time I double click on a file with a txt extension, Open Office Word Processor will open. Later if I wnat, I can go back and change it to the default aplication which was GEDIT using the above steps.

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Even though those icons have different names in Ubuntu such as Computer (My Computer), and the Trash Can (Recycle bin), you may still like to have them on the desktop for the added functionality of drag and drop and the ability to easily access network and mounted drives.

Adding these icons is simple. Here's how to do it.

Open up the Run dialog box by pressing ALT and F2 keys, then type gconf-editor and click on the Run button.

(If prompted, enter your password to proceed).

Once the GNOME Configuration Editor opens, navigate to the apps / nautilus / desktop from left menu. Then on the right hand side, you can enable the icons you want visible on the desktop by checking the box next to the item.

For example, I have check:

• trash_icon_visible
• computer_icon_visible
• home_icon_visible
• network_icon_visible

After making your selections, close GNOME Configuration Editor. Now take a look at your desktop and you should see the icons that were selected.

That's it. Now you'll have the same familarality with Ubuntu as you have with Windows.

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And just like using Windows Explorer, you'll want to know all the shortcuts available when using Nautilus, One of them being 'Open as administrator'.

By default this feature is not installed during installation, but you can quickly add it to Nautilus right click menu in no time.

As always, there are two ways to install packages when using Ubuntu. For Windows users, who prefer to use GUI applications, we'll use Synaptic Package Manager.

• Click on System \ Administration \ Synaptic Package Manager from the top panel menu (when prompted, enter your password and click OK ).

• Now click on the Search icon on the toolbar and in the Search field enter nautilus-gksu and click on the Search button.

• When the package has been found, click on the check box and select Mark for installation .

• Then click on Apply (green check icon) on the toolbar, and in the pop up window click the Apply button to confirm the changes.

• When the installation has completed, close Synaptic Package Manager.

Now, open Nautilus by clicking on Places \ Home Folder from the top panel menu and right click on any directory (folder).

You should now see Open as administrator .

Be careful, you'll now have root access (similar to the Administrator account in Windows).

NOTE: If you do not see Open as administrator , restart GNOME by pressing CTRL+ALT+BACKSPACE on the keyboard.

Installing Using Terminal Window

For those of you who rather use the command line to install packages, just open up Terminal Window by clicking on Applications \ Accessories \ Terminal .

Once the window opens, copy the following command to the prompt and press Enter (you will be asked to enter your password when prompted):

sudo apt-get install nautilus-gksu

Once the installation has completed, enter the following command at the prompt to restart Nautilus process:

killall nautilus

After running the above command, Nautilus will open automatically. Just right click on any directory and you should now see Open as administrator .

Want more Ubuntu Tips? Check our Ubuntu Guide For Windows Users series.

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It's not because this functionality does not exist, it's just not enabled by default. Of course, since Ubuntu is Linux based, the equivalent of a command prompt in Windows is a Terminal Window (which means 'Open in Terminal ').

Here's two methods you can use to install Open in Terminal to the right click context menu in Nautilus.

The easiest method is to install from a terminal window.

Just click on Applications \ Accessories \ Terminal .

Once the window opens, copy the following command to the prompt and press Enter (you will be asked to enter your password when prompted):

sudo apt-get install nautilus-open-terminal

Once the installation has completed, enter the following command at the prompt to restart Nautilus process:

killall nautilus

After running the above command, Nautilus will open automatically. Just right click on any directory and you should now see Open in Terminal .

Clicking on it will open the current directory in a terminal window.

Note: If Open in Terminal does not appear in Nautilus, close any open programs, or applications and restart GNOME by pressing CTRL+ALT+BACKSPACE on the keyboard.

Install Using Synaptic Package Manager

An alternative for installing nautilus-open-terminal is to use Synaptic package Manager.

• Click on System \ Administration \ Synaptic Package Manager from the top panel menu (when prompted, enter your password and click OK ).
  

• Now click on the Search icon on the toolbar and in the Search field enter nautilus-open-terminal and click on the Search button.

• When the package has been found, click on the check box and select Mark for installation .

• Then click on Apply (green check icon) on the toolbar, and in the pop up window click the Apply button to confirm the changes.

• When the installation has completed, close Synaptic Package Manager, log off then back on.

After logging back on, open up Nautilus (just click on Places \ Home Folder from the top panel menu) and you should now see Open in Terminal when right clicking on a directory (folder).

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Ok, you made the switch over to Ubuntu from Windows, everything thing is going good, and now you want to do some familiar things like hide your tracks and disable the recent documents folder.

Clearing them out is easy, just click on Places on the top panel menu, and select Recent Documents \ Clear Recent Documents and click on the Clear button when prompted.

The list of recently access documents will be deleted (not the documents themselves). But now you want to disable the view completely.

NOTE: The following steps was tested on Ubuntu 8.04 (Hardy Heron) and may not work properly on previous versions.

To disable, open up a Terminal window by clicking on Application \ Accessories \ Terminal from the top panel menu and enter the following set of commands:

rm ~/.recently-used.xbel

followed by…

touch ~/.recently-used.xbel

…one more (after entering the following command, you will be prompted to enter your password)

sudo chattr +i ~/.recently-used.xbel

Next, clear the Recent Documents list as described above.

Now when you check Places \ Recent Documents again, it should now be greyed out and disabled.

No more displaying "those" recently viewed documents (..aahem).

To explain what occurred to disable Recent Documents using the above set of commands:

• We first removed the file recently-used.xbel (located in the root of your Home directory by using the rm command (this file is used to store the list of documents)
• Next we re-created the file using the touch command.
• Then we changed the attribute of the file to make it inaccessible using the command chattr +i.

If you decide someday that you want to enable displaying of Recent Documents, just run the following command:

sudo chattr -i ~/.recently-used.xbel

The view will remain greyed out and disabled until you access a document, which will cause it to start displaying viewed documents.

Oh yea, one more thing, when you do enable Recent Documents, all documents that you accessed when it was disabled, will be visible. So make sure you clear them out again….otherwise everyone will be able to see what you were trying to hide in the first place ; -O

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Messed up your panels in Gnome? Maybe your new to Ubuntu and accidentally deleted items or the panel itself and now you can't figure out how to get it back.

Sure, you can add a new panel and rebuild it by adding the items back on the panel.

Instead of going through the trouble, there is an easy fix that will restore your panels back to their default settings quickly.

Open up a Terminal window, by clicking on Applications \ Accessories \ Terminal. Or, if you deleted the top panel and cannot access the menus, just press ALT+F2 and in the run dialog box, type gnome-terminal then click on Run.

You can also browse for applications, such as Terminal from the Run window, by clicking on the arrow icon next to 'Show list of known applications" and browse for Terminal.

Once the Terminal window opens, enter the following command at the prompt:

gconftool-2 – -shutdown

(Note: There should be no spaces between the two dashes before shutdown.)

EDIT – Reader nickrud has suggested a better method instead of shutting down gconfd. Instead use the following command (thanks nickrud!)

gconftool – -recursive-unset /apps/panel

(Remember: There should be no spaces between the two dashes before shutdown.)

Then enter the next command:

rm -rf ~/.gconf/apps/panel

And enter one more command:

pkill gnome-panel

That's it!

Both top and bottom panels will appear (if missing) with their default settings. Now you can customize them to your preference and get on with using Ubuntu.

NOTE: This method will work in Gutsy Gibbon (7.10) and Hardy Heron (8.04) version of Ubuntu.

Source: ethernal.org

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Overall, out of the box Linux distributions including Ubuntu, are pretty secure. But that doesn't mean you should ignore tightening up security even further.

One security tweak you need to consider is with Open-SSH server. By default, direct logon for root is enabled, which means your just asking for trouble with hackers attempting to break into your Computer.

Instead, you can easily disable root access from logging into your SSH server, while still being able to access root after logon. While your at it, you can even increase security further, by allowing only certain users login access to SSH.

Obviously, you need to have Open-SSH installed and running. If SSH is not installed on your system, just run the following command from a Terminal window:

sudo apt-get install ssh

When prompted, enter your password, and answer yes if any packages need to be installed or upgraded.

Once installation has completed, test connecting and logging on to SSH (answer yes to accept the key).

Disable Root Access

Now that SSH is installed (if it wasn't), you'll need to edit the sshd_config file by pressing Alt+F2 to open the run window, and enter the following command if you are using GNOME…

gksu gedit /etc/ssh/sshd_config

…or for Kubuntu:

kdesu kate /etc/ssh/sshd_config

If prompted, enter your password to proceed.

(NOTE: Alternatively you can use VI or VIM to edit sshd_config).

Once gedit or kate opens, scroll down until you see the following section…

# Authentication:
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes

…then modify PermitRootLogin as shown below:

PermitRootLogin no

This will disable root's access to logon via SSH. Save the file and exit gedit.

Now you'll need to restart the sshd service from a Terminal window using the following command:

/etc/init.d/sshd restart

After restarting SSH, try to connect using the root account. Access should be disallowed and you should only be able to log on with your user account. Once you do login, you can access the root account by using the su command.

Now that root access is disabled, why stop there with securing SSH?

Decrease SSH Login Grace Time

Another security option you may want to consider, is to lower the LoginGraceTime parameter to about 30 seconds.

LoginGraceTime 30

The login grace time is a period of time where a user may be connected but has not begun the authentication process. By default, sshd will allow a connected user to wait 120 seconds (2 minutes) before starting to authenticate.

By shortening this time, you can decrease the chances of someone attempting a brute force attack against your SSH server from being successfull.

Allow Certain Users SSH Access

By default, SSH will permit every user with an account SSH access. To prevent this, you can use the AllowUsers command to allow access to certain users.

To do this, add the following line in your sshd configuration file under the Authentication section.

AllowUsers breid jmathon

This will allow only users breid and jmathon access to login via SSH.

After making the above changes, save the file sshd_config and close gedit. To allow the changes to become effective immediately, don't forget to restart SSH by running the following command from a Terminal window:

/etc/init.d/sshd restart

By making these simple changes to your SSH configuration, it will allow you to increase security by opening up access to your computer for authorized users…and closing the door on hackers.

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For many new Ubuntu and Linux users, making the transition from Windows to Ubuntu is an exercise in not getting frustrated. For those who stick it out, there comes that eventual time when you need to go beyond the GUI, fire up a Terminal window and start working at the command prompt.

Because Linux provides so many commands and possible options, you can't expect to recall all of them or know their meaning

To help, Linux provides several methods, such as man and the apropos commands, which let you access a help database that describes each command and its options.

As always with any Linux based system, many resources are available when help is needed, and the command prompt is no exception. One thing to keep in mind when using the command prompt, unlike Windows, Linux (including Ubuntu) is case sensitive, so be sure to type each character of a command in the proper case.

Display Options And Arguments For Commands

Say you're working with a command and you want to know what options are available. The easiest method is to just type the command with the help option:

command –help

In the following example if you used the above syntax for the chmod command, the output would display as shown below:

wtn@wtn2:~$ chmod –help
Usage: chmod [OPTION]… MODE[,MODE]… FILE…
or: chmod [OPTION]… OCTAL-MODE FILE…
or: chmod [OPTION]… –reference=RFILE FILE…
Change the mode of each FILE to MODE.

-c, –changes like verbose but report only when a change is made
–no-preserve-root do not treat `/' specially (the default)
–preserve-root fail to operate recursively on `/'
-f, –silent, –quiet suppress most error messages
-v, –verbose output a diagnostic for every file processed
–reference=RFILE use RFILE's mode instead of MODE values
-R, –recursive change files and directories recursively
–help display this help and exit
–version output version information and exit

Each MODE is of the form `[ugoa]*([-+=]([rwxXst]*|[ugo]))+'.

Display Information About A Command

Each Linux command is described by a special file called a manual page. The manual pages are stored in a group of sub directories comprising a help database known as an on-line reference manual.

To access this database, use the man command with the following syntax:

man commandname

For example, to look up detailed information for chmod, type man chmod. The output will display as shown below:

CHMOD(1) User Commands CHMOD(1)

NAME
chmod – change file access permissions

SYNOPSIS
chmod [OPTION]… MODE[,MODE]… FILE…
chmod [OPTION]… OCTAL-MODE FILE…
chmod [OPTION]… –reference=RFILE FILE…

DESCRIPTION
This manual page documents the GNU version of chmod. chmod changes
the permissions of each given file according to mode, which can be
either a symbolic representation of changes to make, or an octal num\u2010
ber representing the bit pattern for the new permissions.

The format of a symbolic mode is \u2018[ugoa...][[+-=][rwxXs\u2010
tugo...]…][,...]\u2019. Multiple symbolic operations can be given, sepa\u2010
rated by commas.

A combination of the letters \u2018ugoa\u2019 controls which users\u2019 access to
the file will be changed: the user who owns it (u), other users in the
file\u2019s group (g), other users not in the file\u2019s group (o), or all
users (a). If none of these are given, the effect is as if \u2018a\u2019 were
given, but bits that are set in the umask are not affected.

The operator \u2018+\u2019 causes the permissions selected to be added to the
Manual page chmod(1) line 1

To continue navigating through the pages, use the following keyboard shortcuts:

• Space Bar – scrolls down one page
• B – pressing B scrolls up one page
• Page Up/Down – scrolls up and down one page (same as Space Bar and B)
• Up/Down Arrow – scrolls up or down one line at a time
• Home – jumps to beginning (top)
• End – jumps to end (bottom)
• Q (or CTRL Z) – quits and exits manual page

Search Manual (man) Pages For Keywords

While the man command searches the manual pages and displays detailed information about a specified command, you can use the apropos command to easily search manual pages for keywords. This is useful to display summary information about manual pages that contain a specified keyword.

For example, typing the command:

apropos files

will display a list of man pages containing the word files as shown below.

wtn@wtn2:~$ apropos files
aa-logprof (8) – utility program for managing AppArmor security profiles
aa-unconfined (8) – output a list of processes with tcp or udp ports that do not have AppArmor profiles loaded
aplaymidi (1) – play Standard MIDI Files
apparmor.d (5) – syntax of security profiles for AppArmor.
apparmor.vim (5) – vim syntax highlighting file for AppArmor profiles
apparmor_parser (8) – loads AppArmor profiles into the kernel
apport-unpack (1) – extract the fields of a problem report to separate files
apt-ftparchive (1) – Utility to generate index files
apt-sortpkgs (1) – Utility to sort package index files
arecordmidi (1) – record Standard MIDI Files
aspell-autobuildhash (8) – Autobuilding aspell hash files for some dicts
bittorrent-downloader.bittorrent (1) – download files using a scatter-gather network
bogoutil (1) – Dumps, loads, and maintains bogofilter database files
btdownloadcurses (1) – download files using a scatter-gather network
btdownloadcurses.bittorrent (1) – download files using a scatter-gather network
btdownloadheadless (1) – download files using a scatter-gather network
btdownloadheadless.bittorrent (1) – download files using a scatter-gather network

Note, that the search is limited to the short description that appears at the beginning of each manual page.

The apropos command is useful when you don't recall the name of a Linux command. By typing a related keyword, you can obtain a list of commands and search the list for the command you need.

Other Ways To Find Commands

While apropos helps you find commands using keywords, you can list commands using the following methods.

– List All Available Commands – press the tab key twice. You will see the following message

wtn@wtn2:~$
Display all 1910 possibilities? (y or n)

To display, just press y. You can scroll through the list by pressing the space bar. To exit before reaching the end of the list, press q.

– List All Commands Starting With A Letter Or Letters – type a letter and press the tab key twice.

For example typing w and pressing tab key twice will display all commands starting with 'w'.

wtn@wtn2:~$ w
w whereis wpa_cli
w3m which wpa_passphrase
w3mman while wpa_supplicant
wait whiptail w.procps
wall who write
watch whoami writevt
wc whois wvdial
wftopfa wodim wvdialconf
wget word-list-compress www-browser
whatis wpa_action

While typing wh and pressing tab key twice will display all commands starting with 'wh'.

wtn@wtn2:~$ wh
whatis which whiptail whoami
whereis while who whois

- Show Brief Description Of Command – To display just command descriptions, type whatis and the command name. For example, typing whatis who displays the following:

wtn@wtn2:~$ whatis who

who (1) – show who is logged on

- Display Location Of Command – To display the directory or path for a command, use the which command using the following syntax. , which who.

wtn@wtn2:~$ which who
/usr/bin/who

As you can see, many oprions exist to find help at the command prompt when using Ubuntu or any Linux distributions. For Windows users making the switch to Ubuntu, knowing how to find help will ease the transisition and eliminate any fears at the command prompt.

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A great feature in Ubuntu is the automatic update feature, which functions in the same way as Windows Update, to help keep your computer updated with the latest software and security updates.

By default, your Ubuntu system will check for updates daily which can be an annoyance depending on the amount of packages and programs you have installed. Instead, change how often Ubuntu checks for updates to your preference.

As with any Linux distribution, Auto Update schedule can be modified from the command prompt. Instead Ubuntu includes a nice GUI interface which we'll use in this tutorial.

To access the tool, just right click on Automatic Update notification icon on the top panel and select Preference.

NOTE: You can also access Auto Update tool from the top panel menu by clicking System \ Administration \ Software Sources.

After the tool opens, click on the Updates tab and in the Automatic updates section, click on the arrow and select how often you want Ubuntu to check for updates. Your choices are:

• Daily
• Every two days
• Weekly
• Every two weeks

You can also select how you want to be notified of updates either by no confirmation (updates are installed automatically), downloading updates in the background (make sure you have enough available disk space) or just with a notification that updates are available (pdates are not downloaded until you confirm).

When finished with making your selections, click Close to save your changes.

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