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48.
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Some web pages have links which install applications when you click them. These are known as <quote>apt:</quote> links. After clicking the link, you will be asked if you would like to install additional software. Click <guibutton>Install</guibutton> to start the installation process.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:156(para)
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49.
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The application can only be downloaded and installed if it is available in a software repository which is currently enabled on your computer. This means that websites cannot trick you into installing software which is potentially harmful to your computer.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:162(para)
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52.
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Uncheck the box next to the application that you want to remove. Do this for all of the applications you want to remove.
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(no translation yet)
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53.
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Click <guibutton>Apply Changes</guibutton>, then click <guibutton>Apply</guibutton> to remove the applications. Enter your password if prompted.
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(no translation yet)
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55.
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If the application that you want to uninstall is not available in Add/Remove Applications, use Synaptic (<menuchoice><guimenu>System</guimenu><guimenuitem>Administration</guimenuitem><guimenuitem>Synaptic Package Manager</guimenuitem></menuchoice>) to remove it instead.
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(no translation yet)
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58.
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Only add software repositories from sources that you trust. Third-party software repositories are not checked for security by Ubuntu members, so could contain software which is harmful to your computer.
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(no translation yet)
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66.
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As a security measure, most software repositories use a GPG key to digitally sign the files they provide. This makes it easy to check that the files have not been tampered with since their creation. In order for your package manager to be able to check this, you need the public key that corresponds to the signatures. The key should be available for download on the repository's website.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:246(para)
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69.
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If you are not connected to the Internet, you can use a CD containing package files to install applications on your computer. The Ubuntu installation CD can be used for this purpose, and other CDs with different packages are available as well. Additionally, the program <application>APTonCD</application> can automatically backup installed packages on your system, and create CDs with the contents of various repositories on them.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:313(para)
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82.
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What are restricted and non-free software?
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(no translation yet)
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93.
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To organize the software, Ubuntu repositories are categorized into four groups: <emphasis>Main</emphasis>, <emphasis>Restricted</emphasis>, <emphasis>Universe</emphasis>, and <emphasis>Multiverse</emphasis>. The rationale used to determine which software goes into which category is based on the level of support that software development teams provide for a program and the level of compliance the program has to the <ulink url="http://www.ubuntu.com/ubuntu/philosophy">Free Software Philosophy</ulink>.
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(no translation yet)
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Located in
add-applications/C/add-applications.xml:457(para)
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