140 lines
8.8 KiB
HTML
140 lines
8.8 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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<html 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.Type" content="concept" />
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<meta name="DC.Title" content="Telnet scenario: Secure Telnet with SSL" />
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<meta name="abstract" content="You can use Secure Sockets Layer (SSL) to secure Telnet on iSeries. This scenario provides a step-by-step configuration example." />
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<meta name="description" content="You can use Secure Sockets Layer (SSL) to secure Telnet on iSeries. This scenario provides a step-by-step configuration example." />
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<meta name="DC.Relation" scheme="URI" content="rzaiwscenariossldetails.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Identifier" content="rzaiwscenariossl" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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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>Telnet scenario: Secure Telnet with SSL</title>
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</head>
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<body id="rzaiwscenariossl"><a name="rzaiwscenariossl"><!-- --></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">Telnet scenario: Secure Telnet with SSL</h1>
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<div><p>You can use Secure Sockets Layer (SSL) to secure Telnet on iSeries™.
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This scenario provides a step-by-step configuration example.</p>
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<div class="section" id="rzaiwscenariossl__situation"><a name="rzaiwscenariossl__situation"><!-- --></a><h4 class="sectionscenariobar">Situation</h4><p>Bob
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is in the process of creating a home-based brokerage business. He has retired
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from his position as a stock broker at a major trading firm, and wants to
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continue to offer brokerage services to a small number of clients from his
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home. He runs his business on a small iSeries server, which he would like to
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use to provide account access to his clients, through 5250 Telnet sessions.
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Bob is currently working on a way to allow his clients continuous access to
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their accounts, so that they can manage their shareholdings. Bob wants his
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clients to use 5250 Telnet sessions to access their accounts, but he is concerned
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about the security of his server, as well as the security of his clients'
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sessions. After researching the iSeries server Telnet security options,
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Bob decides to use Secure Sockets Layer (SSL) to ensure the privacy of data
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over 5250 Telnet sessions between his iSeries server and clients.</p>
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</div>
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<div class="section" id="rzaiwscenariossl__objective"><a name="rzaiwscenariossl__objective"><!-- --></a><h4 class="sectionscenariobar">Objectives</h4><p>In
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this scenario, Bob wants to secure his brokerage clients' 5250 Telnet sessions
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to their shareholder accounts on his iSeries server. Bob wants to enable SSL
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to protect the privacy of client data as it passes through the Internet. He
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also wants to enable certificates for client authentication to ensure that
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his server verifies that only his clients are accessing their accounts. After
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Bob has configured the Telnet server for SSL and enabled client and server
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authentication, he can roll out this new account accessibility option to his
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clients, assuring them that their account access sessions will be secure.
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After Bob has met the following objectives, he can roll out this
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new account accessibility option to his clients, assuring them that their
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5250 Telnet sessions will be secure:</p>
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<ul><li>Secure the Telnet server with SSL</li>
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<li>Enable the Telnet server for client authentication</li>
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<li>Obtain a private certificate from a local certificate authority (CA) and
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assign it to the Telnet server.</li>
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</ul>
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</div>
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<div class="section" id="rzaiwscenariossl__details"><a name="rzaiwscenariossl__details"><!-- --></a><h4 class="sectionscenariobar">Details</h4><p>In
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this scenario, the setup for the brokerage business is as follows:</p>
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<ul><li>An iSeries server runs i5/OS Version 5 Release 4 (V5R4)
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and provides shareholder account access over 5250 Telnet sessions.</li>
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<li>The i5/OS Telnet server application is started on the iSeries server.</li>
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<li>The Telnet server initializes SSL, and checks the certificate information
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in the <samp class="codeph">QIBM_QTV_TELNET_SERVER</samp> application ID.</li>
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<li>If the Telnet certificate configuration is correct, the Telnet server
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begins listening on the SSL port for client connections.</li>
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<li>A client initiates a request for access to the Telnet server.</li>
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<li>The Telnet server responds by providing its certificate to the client.</li>
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<li>The client software validates the certificate as an acceptable, trusted
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source communicating with the server.</li>
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<li>The Telnet server requests a certificate from the client software.</li>
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<li>The client software presents a certificate to the Telnet server.</li>
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<li>The Telnet server validates the certificate, and recognizes the client's
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right to establish a 5250 session with the server.</li>
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<li>The Telnet server establishes a 5250 session with the client.</li>
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</ul>
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</div>
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<div class="section" id="rzaiwscenariossl__prereq"><a name="rzaiwscenariossl__prereq"><!-- --></a><h4 class="sectionscenariobar">Prerequisites
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and assumptions</h4><p>This scenario makes the following assumptions:</p>
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<ul><li>iSeries server running i5/OS<sup>®</sup> Version 5 Release 2 (V5R2) or later.</li>
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<li>TCP/IP is configured.</li>
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<li>Bob has IOSYSCFG authority.</li>
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<li><a href="rzaiwconfigtelsrvr.htm">Telnet server is configured</a>.</li>
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<li>Bob has addressed the issues in <a href="../rzain/rzainplanssl.htm">Plan for SSL enablement</a>.</li>
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<li>Bob has created a local certificate authority on his iSeries server.</li>
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</ul>
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</div>
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<div class="section" id="rzaiwscenariossl__steps"><a name="rzaiwscenariossl__steps"><!-- --></a><h4 class="sectionscenariobar">Task steps</h4><p>There
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are two sets of tasks that Bob must complete to implement this scenario: One
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set of tasks allows him to set up his iSeries server to use SSL and require
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certificates for user authentication. The other set of tasks allows users
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on Telnet clients to participate in SSL sessions with Bob's Telnet server
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and obtain certificates for user authentication.</p>
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<p>Bob performs the following
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task steps to complete this scenario:</p>
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<p><strong>Telnet server task steps</strong></p>
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<p>To
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implement this scenario, Bob must perform these tasks on his iSeries server:</p>
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<ol><li><a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__removeport">Remove
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port restrictions</a></li>
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<li><a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__createlca">Create
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and operate Local Certificate Authority</a></li>
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<li><a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__configtelnet">Configure
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Telnet server to require certificates for client authentication</a></li>
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<li><a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__enablessl">Enable
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and start SSL on Telnet server</a> </li>
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</ol>
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<p><strong>Client configuration task steps</strong></p>
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<p>To implement this scenario,
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each user who will access the Telnet server on Bob's iSeries server must perform these tasks:</p>
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<p> 5. <a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__enablesslclient">Enable
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SSL on the Telnet client</a></p>
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<p> 6. <a href="rzaiwscenariossldetails.htm#rzaiwscenariossldetails__telnetclient">Enable
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Telnet client to present certificate for authentication</a></p>
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<p>These
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tasks accomplish both SSL and client authentication by certificates, resulting
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in SSL-secured access to account information for Bob's clients using 5250
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Telnet sessions.</p>
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</div>
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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="rzaiwscenariossldetails.htm">Configuration details</a></strong><br />
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This topic describes the task steps for securing Telnet with 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="rzaiwscenario.htm" title="This topic provides examples of using Telnet to introduce basic concepts and configuration tasks.">Telnet scenarios</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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