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 <article id="proxy" lang="&language;">
 <title>Proxy</title>
 <articleinfo>
 <authorgroup>
 <author>&Krishna.Tateneni; &Krishna.Tateneni.mail;</author>
 <!-- TRANS:ROLES_OF_TRANSLATORS -->
 </authorgroup>
 
 <date>2016-11-10</date>
 <releaseinfo>Frameworks 5.29</releaseinfo>
 
 <keywordset>
 <keyword>KDE</keyword>
 <keyword>Systemsettings</keyword>
 <keyword>proxy</keyword>
 <keyword>proxies</keyword>
 </keywordset>
 
 </articleinfo>
 <sect1 id="proxies">
 <title>Proxies</title>
 
 <sect2 id="proxies-intro">
 
 <title>Introduction</title>
 
 <para>Proxies are programs running on a computer that acts a server on
 the network you are connected to (whether by modem or other
 means). These programs receive &HTTP; and &FTP; requests, retrieve the
 relevant files from the internet, and pass them on to the client
 computer that made the requests.</para>
 
 <para>When you have configured a proxy, &HTTP; and/or &FTP; requests
 are re-routed through the computer that is acting as a proxy server.
 However, you can also select specific hosts which should be contacted
 directly, rather than through the proxy server. If you are on a local
 network, for example, access to local hosts probably doesn't need to
 go through a proxy server.</para>
 
 <para>You should only need to configure a proxy server if your network
 administrator requires it (if you are a dial-up user, that would be
 your internet service provider or <acronym>ISP</acronym>). Otherwise,
 especially if you are feeling a bit confused about this proxy
 business, but everything seems to be fine with your internet
 connection, you don't need to change anything.</para>
 
 <para>Please note that using proxy servers is optional, but has the
 benefit or advantage of giving you faster access to data on the
 internet.</para>
 
 <para>If you are uncertain whether or not you need to use a proxy
 server to connect to the internet, please consult with your internet
 service provider's setup guide or your system administrator.</para>
 
 </sect2>
 
 <sect2 id="proxies-use">
 
 <title>Use</title>
 
 <variablelist>
 <varlistentry>
 <term><guilabel>No Proxy</guilabel></term>
 <listitem>
 
 <para>Select this option if you do <emphasis>not</emphasis> want to use a proxy server
 and connect to the Internet directly.</para>
 </listitem>
 </varlistentry>
 </variablelist>
 
 <para>If you have decided to use a proxy, you have several methods to
 configure the settings for it.</para>
 
 <variablelist>
 <varlistentry>
 <term><guilabel>Detect proxy configuration automatically</guilabel></term>
 <listitem>
 
 <para>Select this option if you want the proxy setup configuration
 script file to be automatically detected and downloaded.</para>
 <para>This option only differs from the next choice in that it
 <emphasis>does not</emphasis> require you to supply the location of
 the configuration script file. Instead, it will be automatically
 downloaded using <quote>Web Proxy Auto-Discovery</quote> 
 (<acronym>WPAD</acronym>) protocol.</para>
 </listitem>
 </varlistentry>
 
 <varlistentry>
 <term><guilabel>Use proxy auto configuration URL:</guilabel></term>
 <listitem>
 <para>Select this option if your proxy support is provided through a
 script file located at a specific address.  You can then enter the
 address in the location text box, or use the <guiicon>folder</guiicon>
 icon to browse to it.</para>
 </listitem>
 </varlistentry>
 
 <varlistentry>
 <term><guilabel>Use system proxy configuration:</guilabel></term>
 <listitem>
 <para>Some systems are setup with $<envar>HTTP_PROXY</envar> to allow
 graphical as well as non-graphical applications to share the same
 proxy configuration information.</para>
 <para>If you know this applies to you, select this option and click on
 the <guibutton>Auto Detect</guibutton> button to provide the environment
 variable names used to set the address of the proxy server(s).</para>
 <!-- Exceptions fields are different for system proxy (envar) + manual proxy list of hosts/IPs? -->
 <para>In the <guilabel>Exceptions:</guilabel> field enter the environment variable,
 &eg; $<envar>NO_PROXY</envar>, used to store the 
 addresses of sites for which the proxy server should not be used.</para>
 <para>Use <guilabel>Show the value of the environment variables</guilabel> to 
 show the value of an environment variable instead of its name.
 However it is not possible to edit the values of environment variables in this module.</para>
 <!--
 How to enable Auto Detect button?
 -->
 
 </listitem>
 </varlistentry>
 <varlistentry>
 <term><guilabel>Use manually specified proxy configuration:</guilabel></term>
 <listitem>
 
 <para>The complete addressing information for the proxy includes both
 the Internet address and a port number. You should enter these into
 the relevant text boxes. Check <guilabel>Use this proxy server for all 
 protocols</guilabel> to copy the addresses and port of the &HTTP; proxy server
 into all other proxy fields, in order to help save some typing.</para>
 
 <variablelist>
 <varlistentry>
 <term><guilabel>Exceptions:</guilabel></term>
 <listitem>
 <para>Enter a comma separated list of hostnames or ip addresses that should 
 be excluded from using the above proxy settings. If you want to exclude all 
 hosts for a given domain, then simply enter the domain name preceded by a dot. 
 For example, to exclude all hostnames for kde.org, enter <userinput>.kde.org</userinput>. 
 Wildcard characters such as <userinput>*</userinput> or <userinput>?</userinput> 
 are not supported and will have no effect. 
 Additionally, you can also enter IP addresses, &eg; 127.0.0.1 and
 IP addresses with a subnet, &eg; 192.168.0.1/24.</para>
 </listitem>
 </varlistentry>
 </variablelist>
 
 <para>You can also choose <guilabel>Use proxy settings only for addresses 
 in the Exceptions list</guilabel>.</para>
 
 <para>Check this box to reverse the use of the exception list, &ie;
 the proxy servers will only be used when the requested &URL; matches
 one of the addresses listed here.</para>
 
 <para>This feature is useful if all you need is a proxy to access a
 few specific sites, for example, an internal intranet.  If you have
 more complex requirements you might want to use a configuration
 script.</para>
 </listitem>
 </varlistentry>
 </variablelist>
 
 </sect2>
 
 </sect1>
 
 </article>