71 lines
4.5 KiB
HTML
71 lines
4.5 KiB
HTML
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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.Type" content="concept" />
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<meta name="DC.Title" content="Host Servers port numbers" />
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<meta name="abstract" content="Each type of server has its own server daemon, which listens on a port for incoming client connection requests." />
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<meta name="description" content="Each type of server has its own server daemon, which listens on a port for incoming client connection requests." />
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<meta name="DC.Relation" scheme="URI" content="rzaiiservicesandports.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Host Servers port numbers</title>
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</head>
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<body id="rzaiimstsvrprtnum"><a name="rzaiimstsvrprtnum"><!-- --></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">Host Servers port numbers</h1>
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<div><p>Each type of server has its own server daemon, which listens on
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a port for incoming client connection requests.</p>
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<p>There are exceptions to this. For instance, the transfer function over
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sockets uses the database server daemon; the network drive server uses the
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file server daemon; and the virtual print server uses the network print server
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daemon. In addition, the server mapper daemon also listens on a specified
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port, and allows a client to obtain the current port number for a specified
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server.</p>
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<p>Each of the server daemons listen on the port number that is provided in
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the service table for the specified service name. For example, the network
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print server daemon, with the initial configuration that is provided, listens
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on port number 8474, which is associated with service name 'as-netprt.' The
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server mapper daemon listens on the well-known port. The well-known server
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mapper port number is 449. The well-known port number is reserved for the
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exclusive use of the Host Servers. Therefore, the entry for the 'as-svrmap'
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service name should not be removed from the service table.</p>
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<p>The port numbers for each server daemon are not fixed; the service table
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can be modified by using different port numbers if your installation requires
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such changes. You can change where the port number is retrieved from the iSeries™ Navigator
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system properties connection tab. However, the service name must remain the
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same as that shown in following tables. Otherwise, the server daemons cannot
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establish a socket to accept incoming requests for client connection.</p>
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<p>If a new service table entry is added to identify a different port number
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for a service, any pre-existing service table entries for that service name
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should be removed. Removing these entries eliminates the duplication of the
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service name in the table and eliminates the possibility of unpredictable
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results when the server daemon starts.</p>
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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="rzaiiservicesandports.htm">Port numbers for host servers and server mapper</a></strong><br />
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View each server's port number for the optimized servers and server mapper that use sockets over TCP communication support and those that use Secure Sockets Layer (SSL).</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="rzaiimst28.htm" title="Learn the process for starting and ending communication between clients and host servers.">Establish client/server communications</a></div>
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</div>
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</div>
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</body>
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</html> |