93 lines
6.5 KiB
HTML
93 lines
6.5 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Set the session keep-alive parameter" />
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<meta name="abstract" content="You can set the maximum idle time that the TCP protocol will allow before sending a probe to test for an inactive session using the TCP keep-alive parameter." />
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<meta name="description" content="You can set the maximum idle time that the TCP protocol will allow before sending a probe to test for an inactive session using the TCP keep-alive parameter." />
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<title>Set the session keep-alive parameter</title>
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</head>
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<body id="rzaiwrzaiwtimeout"><a name="rzaiwrzaiwtimeout"><!-- --></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">Set the session keep-alive parameter</h1>
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<div><p>You can set the maximum idle time that the TCP protocol will allow
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before sending a probe to test for an inactive session using the TCP keep-alive
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parameter.</p>
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<div class="section"><p>The protocol will send keep-alive requests to the remote client
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any time the session remains idle for periods longer than the the keep-alive
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value. The idle period is defined by the Session keep alive timeout parameter
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in Telnet properties in iSeries™ Navigator or a parameter in the CHGTELNA
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command. When a session is deemed to be inactive (no response from the remote
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client to any keep-alive probe), that session is ended; the virtual device
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associated with the session is returned to the free pool of virtual devices;
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and the iSeries operating
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system performs the action set in the QDEVRCYACN system value on the interactive
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job running on the virtual device. This action affects (only) named virtual
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devices. For automatically selected virtual devices (QPADEVxxxx), the interactive
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job always ends.</p>
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<p>The Telnet server defines the keep-alive setting to
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600 seconds by default.</p>
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<p>The setting takes effect at server startup.
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In addition to the session keep-alive timeout parameter, you might also want
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to review the Time out interval settings in the Inactive Jobs System Values
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in iSeries Navigator.
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This timeout parameter is used to limit the amount of time that any interactive
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job is allowed to be idle before the iSeries operating system performs the
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action set in the QINACTMSGQ system value on the interactive job. In the case
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of Telnet connected interactive jobs, an action of *DSCJOB is only honored
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for named virtual devices. For automatically selected virtual devices (QPADEVxxxx),
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an action of *DSCJOB will cause the interactive job to be ended.</p>
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<p>To
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set the keep-alive parameter for Telnet in iSeries Navigator, follow these steps:</p>
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</div>
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<ol><li><span>In iSeries Navigator,
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select <span class="menucascade"><span class="uicontrol">your iSeries server</span> > <span class="uicontrol">Network</span> > <span class="uicontrol">Servers</span> > <span class="uicontrol">TCP/IP</span></span>.</span></li>
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<li><span>In the right pane, right-click <span class="uicontrol">Telnet</span> and
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select <span class="uicontrol">Properties</span>.</span></li>
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<li><span>On the <span class="uicontrol">Telnet Properties</span> page, click the <span class="uicontrol">Time-Out</span> tab.</span></li>
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<li><span>On the <span class="uicontrol">Telnet Properties - Time-Out</span> page,
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specify the action to take when jobs reach a time-out. You can also specify
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how long to give an operation before the job times out. You can specify information
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for both inactive jobs and disconnected jobs.</span></li>
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</ol>
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<div class="section"><p><strong>What to do next:</strong></p>
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<p>Assign devices to subsystems</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiwconfigtelsrvr.htm" title="This topic shows you how to configure your Telnet server for various emulation types.">Configure the Telnet server</a></div>
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<div class="previouslink"><strong>Previous topic:</strong> <a href="rzaiwqlmtsecofr.htm" title="The sign-on system values are used to both restrict or limit the devices to which a user can sign on and to define the number of system sign-on attempts allowed.">Restrict privileged users to specific devices and limit sign-on attempts</a></div>
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<div class="nextlink"><strong>Next topic:</strong> <a href="rzaiwresusr.htm" title="Before a user can sign on to the iSeries server, the workstation must be defined to a subsystem. The workstation, for example, will be the virtual display device that is selected or automatically created by the Telnet server.">Assign devices to subsystems</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzaiwseccontrolaccess.htm" title="This topic provides tips for protecting your Telnet server from harm.">Control Telnet access</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="../rzakz/rzakzjobsoverview.htm">Inactive Jobs System Values</a></div>
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</div>
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</div>
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</body>
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</html>
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