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<a accesskey="n" href="installUpdates.html">Další</a></td></tr></table></div><div id="headerlogo"><img src="cfb3ffb3-79b2-49a5-9f20-4619d6e613de" alt="Company Logo"/></div><h1 id="pagetitle">Firewall<br/> </h1></div><div id="content"><!----><div xml:lang="cs" class="section" title="Firewall"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="firewall"><!----></a>Firewall</h2></div></div></div><p><a id="firewall-pa1"><!----></a>This section allows you to configure some simple firewall rules: they
determine which type of message from the Internet will be accepted by the
target system. This, in turn, allows the corresponding services on the
system to be accessible from the Internet.</p><div class="mediaobject" align="center"><img src="../../en/content/images/dx2-firewall.png" align="middle"/></div><p>In the default setting (no button is checked), no service of the system is
accessible from the network. The <span class="emphasis"><em>Everything (no
firewall)</em></span> option enables access to all services of the machine -
an option that does not make much sense in the context of the installer
since it would create a totally unprotected system. Its veritable use is in
the context of the Mageia Control Center (which uses the same GUI layout)
for temporarily disabling the entire set of firewall rules for testing and
debugging purposes.</p><p>All other options are more or less self-explanatory. As an example, you will
enable the CUPS server if you want printers on your machine to be accessible
from the network.</p><p><span class="bold"><strong>Pokročilé</strong></span></p><p>The <span class="emphasis"><em>Advanced</em></span> option opens a window where you can enable
a series of services by typing a list of <span class="quote">„<span class="quote">couples</span>“</span> (blank
separated)</p><p><span class="emphasis"><em><číslo-portu>/<protokol></em></span></p><table border="0" summary="Simple list" class="simplelist"><tr><td>- <span class="emphasis"><em><port-number></em></span> is the value of the port assigned
to the service you want to enable (e.g. 873 for the RSYNC service) as
defined in <span class="emphasis"><em>RFC-433</em></span>;</td></tr><tr><td>- <span class="emphasis"><em><protocol></em></span> is one of <span class="emphasis"><em>TCP</em></span>
or <span class="emphasis"><em>UDP</em></span> - the internet protocol that is used by the
service.</td></tr></table><p>For instance, the entry for enabling access to the RSYNC service therefore
is <span class="emphasis"><em>873/tcp</em></span>.</p><p>In case a service is implemented to use both protocols, you specify 2
couples for the same port.</p></div><script xmlns="" type="text/javascript" src="main.js"><!----></script><hr xmlns=""/><div xmlns="" class="copyright">© Mageia</div><div xmlns="" class="license"><a href="index.html#CC_BY-SA">CC BY-SA 3.0</a></div><div id="upload_date">Uploaded on 25/08/2023</div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="securityLevel.html">Předcházející</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="installUpdates.html">Další</a></td></tr><tr><td width="40%" align="left" valign="top"> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Domů</a></td><td width="40%" align="right" valign="top"> </td></tr></table></div></div><div><div id="leftnavigation"><div id="tabs"><ul><li><a href="#treeDiv"><em>Obsahy</em></a></li><li><a href="#searchDiv"><em>Hledat</em></a></li></ul><div id="treeDiv"><img src="../../common/images/loading.gif" alt="loading table of contents..." id="tocLoading" style="display:block;"/><div id="ulTreeDiv" style="display:none"><ul id="tree" class="filetree"><li><span class="file section"><a href="Select-and-use-ISOs.html">Vyberte a používejte ISO</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e18">Úvod</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e40">Média</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e42">Definice</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e47">Klasické instalační nosiče</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e49">Běžné vlastnosti</a></span></li></ul></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e67">Živé nosiče</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e69">Běžné vlastnosti</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e82">Živé DVD Plasma</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e91">Live DVD GNOME</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e100">Živé DVD Xfce</a></span></li></ul></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e109">Médium pro síťovou instalaci</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e111">Běžné vlastnosti</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e118">netinstall.iso</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e123">netinstall-nonfree.iso</a></span></li></ul></li></ul></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e128">Stahování a zkontrolování nosiče</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e130">Stažení</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e148">Ověřování neporušenosti stáhnutého nosiče</a></span></li></ul></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e167">Vypálení nebo vepsání souboru ISO</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e171">Vypálení souboru ISO na CD/DVD</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e178">Zapsat ISO na USB flash</a></span><ul><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e186">Použitím grafického nástroje v Mageii</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e190">Použitím grafického nástroje ve Windows</a></span></li><li><span class="file section"><a href="Select-and-use-ISOs.html#d4e200">Using the Command line within a GNU/Linux system</a></span></li></ul></li></ul></li></ul></li><li><span class="file 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