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| <h1>Telnet Console</h1> |
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| <div id="preamble"> |
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| <div class="paragraph"> |
| <p>{note} Availability: Since OpenEJB 0.9{note}</p> |
| </div> |
| </div> |
| </div> |
| <h1 id="_basic_usage" class="sect0">Basic Usage</h1> |
| <div class="paragraph"> |
| <p>To use OpenEJB’s Telnet Console, simply boot your server normally.</p> |
| </div> |
| <div class="quoteblock"> |
| <blockquote> |
| <div class="paragraph"> |
| <p>$ ./bin/openejb start</p> |
| </div> |
| </blockquote> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties">OPENEJB_HOME=/Users/dblevins/Desktop/openejb-1.0 |
| OpenEJB 1.0 build: 20060226-1701 |
| http://www.openejb.org |
| resources 1 |
| OpenEJB ready. |
| [init]</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>OpenEJB Remote Server <strong> Starting Services </strong> NAME IP PORT<br> |
| webadmin 0.0.0.0 4203<br> |
| httpejbd 0.0.0.0 4204<br> |
| telnet 0.0.0.0 4202<br> |
| ejbd 0.0.0.0 4201<br> |
| admin 0.0.0.0 4200<br> |
| ------- Ready!</p> |
| </div> |
| <div class="paragraph"> |
| <p>Then in another shell telnet in</p> |
| </div> |
| <div class="quoteblock"> |
| <blockquote> |
| <div class="paragraph"> |
| <p>$ telnet localhost 4202</p> |
| </div> |
| </blockquote> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties">Trying ::1... |
| Connected to localhost. |
| Escape character is '^]</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>'. OpenEJB Remote Server Console type 'help' for a list of commands |
| [openejb] $ help stop exit system version lookup help [openejb] $ system |
| Containers: Default BMP Container Default CMP Container Default Stateful |
| Container Default Stateless Container</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-java" data-lang="java">Deployments: |
| client/tests/stateful/EncBean |
| client/tests/entity/cmp/RMI-over-IIOP/EJBHome |
| client/tests/stateful/BasicStatefulHome |
| ClientTools/ViewClass |
| Webadmin/Configuration |
| EJBGenerator/CreateEJB |
| ClientTools/InvokeObject |
| Webadmin/Properties |
| client/tests/stateful/RMI-over-IIOP/EJBHome |
| Webadmin/Home |
| client/tests/entity/bmp/allowed_operations/EntityHome |
| client/tests/entity/cmp/EncBean |
| httpd/DefaultBean |
| client/tests/stateful/BeanManagedBasicStatefulHome |
| client/tools/DatabaseHome |
| client/tests/entity/bmp/EncBean |
| config/webadmin/ConfigurationData |
| deploy/webadmin/Deployer |
| ClientTools/ViewJndi |
| Webadmin/DeploymentList |
| client/tests/stateless/BeanManagedBasicStatelessHome |
| Webadmin/CMPMapping |
| client/tests/stateless/EncBean |
| client/tests/stateful/BeanManagedTransactionTests/EJBHome |
| client/tests/entity/bmp/RMI-over-IIOP/EJBHome |
| Webadmin/ListLogs |
| client/tests/stateless/BeanManagedTransactionTests/EJBHome |
| ClientTools/ViewEjb |
| client/tests/entity/bmp/BasicBmpHome |
| mapping/webadmin/CMPMappingData |
| client/tests/stateless/BasicStatelessHome |
| client/tests/entity/cmp/BasicCmpHome |
| Webadmin/Deployment |
| httpd/session |
| client/tests/entity/cmp/allowed_operations/EntityHome |
| client/tests/stateless/RMI-over-IIOP/EJBHome |
| [openejb]</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>$ exit Connection closed by foreign host.</p> |
| </div> |
| <h1 id="_configuring_the_telnet_service" class="sect0">Configuring the Telnet Service</h1> |
| <div class="paragraph"> |
| <p>The configuration of all server services (network facing services) is |
| done in xinet.d style config files. The telnet shell is controlled via |
| the $OPENEJB_HOME/conf/telnet.properties file. This file is created for |
| you automatically after the first time OpenEJB boots.</p> |
| </div> |
| <div class="quoteblock"> |
| <blockquote> |
| <div class="paragraph"> |
| <p>$ cat conf/telnet.properties</p> |
| </div> |
| </blockquote> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties"> server = org.openejb.server.telnet.TelnetServer |
| bind = 127.0.0.1 |
| port = 4202 |
| disabled = false |
| threads = 5 |
| # only_from = 192.168.1.123</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>You can change the IP, port, and even the number of threads allowed to |
| concurrently access the Telnet service via this file.</p> |
| </div> |
| <h1 id="_disabling_the_telnet_service" class="sect0">Disabling the Telnet Service</h1> |
| <div class="paragraph"> |
| <p>Simply edit the config file and set 'disabled' to true</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties"> disabled = true</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>Then restart OpenEJB.</p> |
| </div> |
| <h1 id="_restricting_access" class="sect0">Restricting Access</h1> |
| <div class="paragraph"> |
| <p>It is unlikely you want just anyone to be able to login and execute |
| commands. While you can’t restrict access on a user basis, yet, you can |
| restrict access to specific hosts. Host based access control (HBA) is a |
| built-in part of any Server Service in OpenEJB and the Telnet Service is |
| no different. This is done with the 'only_from' property, which like the |
| rest of the file is a direct copy of the xinet.d syntax for HBA.</p> |
| </div> |
| <div class="paragraph"> |
| <p>For an example to restrict access to the localhost, you could configure |
| the Telnet Service like this:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties"> server = org.openejb.server.telnet.TelnetServer |
| bind = 127.0.0.1 |
| port = 4202 |
| disabled = false |
| threads = 5 |
| only_from = localhost</code></pre> |
| </div> |
| </div> |
| <div class="paragraph"> |
| <p>If you wanted to restrict access to localhost <em>and</em> say the hosts |
| 192.168.1.207 and 192.168.1.16, you can simply add them to the list.</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code class="language-properties" data-lang="properties"> server = org.openejb.server.telnet.TelnetServer |
| bind = 127.0.0.1 |
| port = 4202 |
| disabled = false |
| threads = 5 |
| only_from = localhost, 192.168.1.207, 192.168.1.16</code></pre> |
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