47 lines
2.8 KiB
HTML
47 lines
2.8 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-10-03" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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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))' />
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<title>Protect your system in an APPN and HPR environment</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="rzahjsec-pro"></a>
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<h3 id="rzahjsec-pro">Protect your system in an APPN and HPR environment</h3>
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<p>APPN networks provide open connectivity, and require minimal configuration
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by each system in the network. When a system has a connection into an APPN
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network, it can establish sessions with other systems that are connected within
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that APPN network.</p>
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<p>APPN reduces the physical, configuration barriers to communications. However,
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you might want to build some logical barriers between systems in the network
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for security reasons. This ability to control which systems can connect to
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yours is often called <span class="bold">firewall support</span>. Network administrators
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might use a variety of node types to specify which connections between APPC
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locations are allowed. For example, you might want to allow SYSTEMB to communicate
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with SYSTEMA and SYSTEMD, but not with SYSTEMC. For an explanation of this,
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an example, and more information, see the following topics.</p>
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<ul>
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<li><a href="rzahjappnfilsup.htm#appnfilsup">APPN filtering support</a></li>
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<li><a href="rzahjepsf1.htm#epsf1">Create a session endpoint filter</a></li>
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<li><a href="rzahjrzahjcos.htm#rzahjcos">Class of service (COS) routing</a></li></ul>
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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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