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There are situations when the default port needs to be changed using a port offset (e.g., when configuring WSO2 IoT Server with WSO2 Identity Server). When the port offset is set, WSO2 IoT Server starts on a different port, and it changes the default TCP port by increasing the value of the port. Therefore, for WOS2 IoT Server to function properly the port in the TCP connection URL that corresponds to the various WSO2 IoT Server related configuration files need to be updated.

Info

title	What is port offset

The port offset feature allows you to run multiple WSO2 products, multiple instances of a WSO2 product, or multiple WSO2 product clusters on the same server or virtual machine (VM). The port offset defines the number by which all ports defined in the runtime, such as the HTTP/S ports, need to be offset. For example, if the HTTP port is defined as 9763 and the port Offset is 1, the effective HTTP port changes to 9764. Therefore, for each additional WSO2 product, instance, or cluster you add to a server, set the port offset to a unique value (the default is 0).

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Configure the carbon.xml files of the three profile to port offset.

Core

Open the <IOTS_HOME>/conf/carbon.xml file and port offset the IoT Server's core profile by configuring the <Offset> attribute.

Note
Make sure not to have the same offset values as the broker or analytics profile.

Example:

Code Block
<Offset>4</Offset>

Now the HTTPS and HTTP ports of the core profile are 9447 and 9767.

Analytics

Open the <IOTS_HOME>/wso2/analytics/conf/carbon.xml file and port offset the IoT Server's core profile by configuring the <Offset> attribute.

Note
Make sure not to have the same offset values as the broker or analytics profile.

Code Block
<Offset>5</Offset>

Now the HTTPS and HTTP ports of the analytics profile are 9448 and 9768.

Broker

Open the <IOTS_HOME>/wso2/broker/conf/carbon.xml file and port offset the IoT Server's core profile by configuring the <Offset> attribute.

Note
Make sure not to have the same offset values as the broker or analytics profile.

Code Block
<Offset>6</Offset>

Now the HTTPS and HTTP ports of the broker profile are 9449 and 9769.

Open the <IOTS_HOME>/bin/ iot -server.sh or iot-server.bat file configures the following properties:

Analytics ports

By default the analytics profile is offset profileisoffset by 2. In step 1, you offset the analytics profile by 3 more again. Therefore, all the ports relevant to the analytics profile needs to be offset by 3 more.

Example:

Code Block
-Diot.analytics.https.port="9448" \

Broker ports

By default, the broker profile is offset by 3. In step 1, you offset the broker profile by 3 more. Therefore, all the ports relevant to the broker profile needs to be offset by 3.

Example:

Code Block
-Dmqtt.broker.port="1889" \

IoT core ports

By default the core profile is offset by 0. In step 1, you offset the broker profile by 4. Therefore, all the ports relevant to the core profile needs to be offset by 4.
Example:

Code Block

-Diot.manager.https.port="9447" \
-Diot.core.https.port="9447" \
-Diot.keymanager.https.port="9447" \
-Diot.gateway.https.port="8247" \
-Diot.gateway.http.port="8284" \
-Diot.gateway.carbon.https.port="9447" \
-Diot.gateway.carbon.http.port="9767" \
-Diot.apimpublisher.https.port="9447" \
-Diot.apimstore.https.port="9447" \

Open the <IOTS_HOME>/wso2/analytics/bin/wso2 server.sh or wso2server.bat file configures the following properties:

Broker ports

By default, the broker profile is offset by 3. In step 1, you offset the broker profile by 3 more. Therefore, all the ports relevant to the broker profile needs to be offset by 3.

Example:

Code Block
-Dmqtt.broker.port="1889" \

IoT core ports

By default the core profile is offset by 0. In step 1, you offset the core profile by 4. Therefore, all the ports relevant to the core profile needs to be offset by 4.
Example:

Code Block
-Diot.keymanager.https.port="9447" \ -Diot.gateway.https.port="8247" \

Configure the <IOTS_HOME>/wso2/broker/conf/broker.xml file by configuring the following:

The port that referes to the IoT core in the hostURL attribute that is under the <authenticator class="org.wso2.carbon.andes.authentication.andes.OAuth2BasedMQTTAuthenticator"> class.
Example:

Code Block

<authenticator class="org.wso2.carbon.andes.authentication.andes.OAuth2BasedMQTTAuthenticator">
   <property name="hostURL">https://localhost:9447/services/OAuth2TokenValidationService</property>
   <property name="username">admin</property>
   <property name="password">admin</property>
   <property name="maxConnectionsPerHost">10</property>
   <property name="maxTotalConnections">150</property>
</authenticator>

The port that refers to the IoT core profile in the tokenEndpoint attribute that is underthe <org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization.DeviceAccessBasedMQTTAuthorize> class.
Example:

Code Block

<authorizer class="org.wso2.carbon.andes.extensions.device.mgt.mqtt.authorization.DeviceAccessBasedMQTTAuthorizer">
   <property name="username">admin</property>
   <property name="password">admin</property>
   <property name="tokenEndpoint">https://localhost:8247</property>
   <!--offset time from expiry time to trigger refresh call - seconds -->
   <property name="tokenRefreshTimeOffset">100</property>
   <property name="deviceMgtServerUrl">https://localhost:8247</property>
</authorizer>

Configure following properties in the in the <IOTS_HOME>/conf/identity/ sso-idp-config.xml file file.

IoT core

By default the core profile is offset by 0. In step 1, you offset the core profile by 4. Therefore, all the ports relevant to core needs to be offset by 4.
Example:

Code Block

<AssertionConsumerServiceURL>https://localhost:9447/devicemgt/uuf/sso/acs</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/devicemgt/uuf/sso/acs</DefaultAssertionConsumerServiceURL>
<Audience>https://localhost:9447/oauth2/token</Audience>
<Recipient>https://localhost:9447/oauth2/token</Recipient>
<AssertionConsumerServiceURL>https://localhost:9447/store/acs</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/store/acs</DefaultAssertionConsumerServiceURL>
<AssertionConsumerServiceURL>https://localhost:9447/social/acs</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/social/acs</DefaultAssertionConsumerServiceURL>
<AssertionConsumerServiceURL>https://localhost:9447/publisher/acs</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/publisher/acs</DefaultAssertionConsumerServiceURL>
<AssertionConsumerServiceURL>https://localhost:9447/api-store/jagg/jaggery_acs.jag</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/api-store/jagg/jaggery_acs.jag</DefaultAssertionConsumerServiceURL>
<AssertionConsumerServiceURL>https://localhost:9447/portal/acs</AssertionConsumerServiceURL>
<DefaultAssertionConsumerServiceURL>https://localhost:9447/portal/acs</DefaultAssertionConsumerServiceURL>
<Audience>https://localhost:9447/oauth2/token</Audience>
<Recipient>https://localhost:9447/oauth2/token</Recipient>
<Audience>https://localhost:9447/oauth2/token</Audience>
<Recipient>https://localhost:9447/oauth2/token</Recipient>

Analytics

By default the analytics profile is offset by 2. In step 1, you offset the analytics profile by 3 more again. Therefore, all the ports relevant to the analytics profile needs to be offset by 3 more.

Example:

Code Block
<AssertionConsumerServiceURL>https://localhost:9448/portal/acs</AssertionConsumerServiceURL> <DefaultAssertionConsumerServiceURL>https://localhost:9448/portal/acs</DefaultAssertionConsumerServiceURL>

Open the <IOTS_HOME>/repository/deployment/server/jaggeryapps/devicemgt/app/conf/app-conf.json file and configure the following properties related to the IoT Server's core profile:
Example:
By default, the core profile is offset by 0. In step 1, you offset the core profile by 4. Therefore, all the ports relevant to core needs to be offset by 4.
Code Block
"portalURL": "https://${server.ip}:9447",

Open the <IOTS_HOME>/repository/deployment/server/jaggeryapps/api-store/site/conf/site.json file and configure the following properties and configure the following properties related to the IoT Server's core profile:
Example:
By default, the core profile is offset by 0. In step 1, you offset the core profile by 4. Therefore, all the ports relevant to core needs to be offset by 4.

Code Block

"identityProviderURL" : "https://localhost:9447/samlsso",
"identityProviderURI" : "http://localhost:8084/openid-connect-server-webapp/",
"authorizationEndpointURI" : "http://localhost:8084/openid-connect-server-webapp/authorize",
"tokenEndpointURI" : "http://localhost:8084/openid-connect-server-webapp/token",
"userInfoURI" : "http://localhost:8084/openid-connect-server-webapp/userinfo",
"jwksURI" : "http://localhost:8084/openid-connect-server-webapp/jwk",

Open the <IOTS_HOME>/conf/etc/webapp-publisher-config.xml file, and set true as the value for <EnabledUpdateApi>.

Code Block
<!-- If it is true, the APIs of this instance will be updated when the webapps are redeployed --> <EnabledUpdateApi>true</EnabledUpdateApi>

Info
If you have not started WSO2 IoT Server previously, you don't need this configuration. When the server starts for the first time it will update the APIs and web apps with the new ports.

Note

Make sure to configure this property back to false if you need to restart the server again after the configuring the ports.

By enabling the update API property, the APIs and the respective web apps get updated when the server restarts. This takes some time. Therefore, if you need to restart the server many times after this configuration or when in a production environment, you need to revert back to the default setting.

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