Error while key generation in WSO2 IS as Key Manager 5.10.0 and WSO2 APIM 3.1.0

Question

I have a WSO2 all-in-one instance configured with WSO2 IS as Key Manager.

• APIM 3.1.0
• ISKM 5.10.0

I am using DNS names as api.dev.com and is.dev.com . Both are running on two VMs on port 9443

I am referring to this WSO2 documentation and WSO2 ansible scripts.

I made the configurations according to this answer as well. But still, it gives the error as,

TID: [-1234] [api/am/store] [2020-08-13 03:40:08,355] ERROR {org.wso2.carbon.apimgt.impl.AbstractKeyManager} - Error while creating tokens - Connection refused (Connection refused) java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:606)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:681)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:524)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:403)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:131)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
at org.wso2.carbon.apimgt.impl.AMDefaultKeyManagerImpl.executeHTTPrequest_aroundBody50(AMDefaultKeyManagerImpl.java:775)
at org.wso2.carbon.apimgt.impl.AMDefaultKeyManagerImpl.executeHTTPrequest(AMDefaultKeyManagerImpl.java:773)
at org.wso2.carbon.apimgt.impl.AMDefaultKeyManagerImpl.getNewApplicationAccessToken_aroundBody10(AMDefaultKeyManagerImpl.java:385)
at org.wso2.carbon.apimgt.impl.AMDefaultKeyManagerImpl.getNewApplicationAccessToken(AMDefaultKeyManagerImpl.java:304)
at org.wso2.carbon.apimgt.impl.APIConsumerImpl.renewAccessToken_aroundBody30(APIConsumerImpl.java:1341)
at org.wso2.carbon.apimgt.impl.APIConsumerImpl.renewAccessToken(APIConsumerImpl.java:1320)
at org.wso2.carbon.apimgt.rest.api.store.v1.impl.ApplicationsApiServiceImpl.applicationsApplicationIdKeysKeyTypeGenerateTokenPost(ApplicationsApiServiceImpl.java:636)
at 
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.. MORE

Answer 1

in etc\host file add something like this 127.0.0.1 localhost.com, OR in deployment.toml file add [transport.passthru_https.sender.parameters] HostnameVerifier = "AllowAll"