ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzatj_5.4.0.1/socksserver.htm

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<meta name="dc.date" scheme="iso8601" content="2005-09-06" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
<title>SOCKS</title>
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<a name="socksserver"></a>
<h3 id="socksserver">SOCKS</h3>
<p>A SOCKS server is a TCP/IP proxy server application that allows you to
send information through a wide variety of protocols without providing the
internal TCP/IP network information. To use a SOCKS server, the client must
support the SOCKS protocol.</p>
<p>There are some systems such as i5/OS&trade; systems that support a SOCKS client in
its TCP/IP stack (versatile clients) so that all client applications can use
a SOCKS server. The client configuration gives the name of the SOCKS server
to use and the rules for when the server should be used.</p>
<p>SOCKS servers have no knowledge of the application protocol that they are
using. These servers, for example, do not distinguish Telnet form HTTP. AS
a result, SOCKS servers can be written in a more efficient manner than other
proxy server applications. The downside is that SOCKS servers can not perform
functions like caching or logging URLs that are accessed through the server.</p>
<p>The Universal Connection does not support data flow through a SOCKS server.
Therefore, if your i5/OS client accesses the network through a SOCKS server,
you must ensure that none of the Universal Connection information is routed to the SOCKS server
by specifying that all of the destinations are DIRECT in your SOCKS configuration.</p>
<p>For more information about SOCKS, see the <a href="../rzab6/csocks.htm">Client SOCKS support</a> topic and <a href="cfgvpnlocate.htm#cfgvpnlocate">Ensure compatibility with SOCKS</a>.</p>
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