76 lines
4.7 KiB
HTML
76 lines
4.7 KiB
HTML
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Modify architected transaction program names" />
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<meta name="abstract" content="Learn the techniques used to prevent architected transaction program names from running on the system." />
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<meta name="description" content="Learn the techniques used to prevent architected transaction program names from running on the system." />
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<meta name="DC.Identifier" content="architectmodify" />
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<title>Modify architected transaction program names</title>
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</head>
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<body id="architectmodify"><a name="architectmodify"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Modify architected transaction program names</h1>
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<div><p>Learn the techniques used to prevent architected transaction program
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names from running on the system.</p>
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<div class="p">Some communications requests send a specific type of signal to your
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system. This request is called an <span class="uicontrol">architecture transaction program
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name</span> (TPN) because the name of the transaction program is part
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of the APPC architecture for the system. A request for display station pass-through
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request is an example of an architecture TPN. Architecture TPNs are a normal
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way for communications to function and do not necessarily represent a security
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exposure. However, architecture TPNs might provide an unexpected entrance
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into your system. <p>Some TPNs do not pass a profile on the request. If the
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request becomes associated with a communications entry whose default user
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is *SYS, the request may be initiated on your system. However, the *SYS profile
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can run system functions only, not user applications.</p>
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<p>If you do not
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want architecture TPNs to run with a default profile, you can change the default
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user from *SYS to *NONE in communications entries. </p>
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</div>
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<div class="section">If you do not want a specific TPN to run on your system at all, perform
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the following steps:</div>
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<ol><li class="stepexpand" id="architectmodify__step1cl"><a name="architectmodify__step1cl"><!-- --></a><span>Create a CL program that accepts several parameters.
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The program should perform no function. It should simply have the Declare
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(DCL) statements for parameters and then end.</span></li>
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<li class="stepexpand"><span>Add a routing entry for the TPN to each subsystem that has communications
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entries or remote location name entries. The routing entry should specify
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the following:</span> <ul><li>A Compare value (CMPVAL) value equal to the program name for the TPN with
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a starting position of 37.</li>
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<li>A Program to call (PGM) value equal to the name of the program that you
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created in step <a href="#architectmodify__step1cl">1</a>. This prevents
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the TPN from locating another routing entry, such as *ANY.</li>
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</ul>
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</li>
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</ol>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzamvarchitecttpn.htm">Architecture TPN requests</a></strong><br />
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This article lists the architecture transaction program names and their associated user profiles.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzamvdevelopintrusiondetectstrat.htm" title="The following information is a collection of tips to help you detect potential security exposures.">Prevent and detect security exposures</a></div>
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</div>
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