Change the hostname¶
This section guides you through changing the hostname of the WSO2 Identity Server.
-
Change the hostname - The server hostname for internal API calls is configured as
localhost
by default. This configuration is utilized to build the internal absolute URL of a service endpoint that will be consumed whenever internal API calls are generated. To configure the hostname, follow one of the two options given below according to your requirements.Option 1
Configure the
hostname
as follows in<IS_HOME>/repository/conf/deployment.toml
.[server] hostname = "is.dev.wso2.com"
Add
localhost
as SAN for the certificate (-ext SAN=dns:localhost) as the internal hostname is by defaultlocalhost
. For that, navigate to the<IS_HOME>/repository/resources/security
directory on the command prompt and use the following command to create a new keystore withCN=is.dev.wso2.com
andlocalhost
as SAN.Format
keytool -genkey -alias <alias_name> -keyalg RSA -keysize 2048 -keystore <keystore_name>.jks -dname "CN=<hostname>, OU=<organizational_unit>,O=<organization>,L=<Locality>,S=<State/province>,C=<country_code>" -storepass <keystore_password> -keypass <confirm_keystore_password> -ext SAN=dns:localhost
Replace the values enclosed within
<>
in the command given above with a value you prefer. Following is a sample command.Sample keytool command
keytool -genkey -alias newcert -keyalg RSA -keysize 2048 -keystore newkeystore.jks -dname "CN=is.dev.wso2.com, OU=Is,O=Wso2,L=SL,S=WS,C=LK" -storepass mypassword -keypass mypassword -ext SAN=dns:localhost
Option 2
Instead of adding SAN, you can configure the same name for the
hostname
, and theinternal_hostname
in<IS_HOME>/repository/conf/deployment.toml
as follows.[server] hostname = "is.dev.wso2.com" internal_hostname = "is.dev.wso2.com"
Navigate to the
<IS_HOME>/repository/resources/security
directory on the command prompt and use the following command to create a new keystore withCN=is.dev.wso2.com
.Format
keytool -genkey -alias <alias_name> -keyalg RSA -keysize 2048 -keystore <keystore_name>.jks -dname "CN=<hostname>, OU=<organizational_unit>,O=<organization>,L=<Locality>,S=<State/province>,C=<country_code>" -storepass <keystore_password> -keypass <confirm_keystore_password>
Replace the values enclosed within
<>
in the command given above with a value you prefer. Following is a sample command.Sample keytool command
keytool -genkey -alias newcert -keyalg RSA -keysize 2048 -keystore newkeystore.jks -dname "CN=is.dev.wso2.com, OU=Is,O=Wso2,L=SL,S=WS,C=LK" -storepass mypassword -keypass mypassword
-
If the keystore name and password is changed, all the references to it within the WSO2 Identity Server must also be updated. Add the following configuration to the
deployment.toml
file in the<IS_HOME>/repository/conf/
folder.[keystore.primary] file_name = "new-keystore.jks" password = "new-keystore-password" alias = "new-private-key-alias" key_password = "new-private-key-password"
-
Export the public key from your keystore .jks file using the following command.
Format
keytool -export -alias <alias_name> -keystore <keystore_name>.jks -file <public_key_name>.pem
Replace the values enclosed within
<>
in the command given above with a value you prefer, as shown in the sample command below.Sample keytool command
keytool -export -alias newcert -keystore newkeystore.jks -file pkn.pem
-
Import the public key you extracted in the previous step to the
client-truststore.jks
file using the following command.Format
keytool -import -alias <alias_name> -file <public_key_name>.pem -keystore client-truststore.jks -storepass <keystore_password>
Replace the values enclosed within
<>
in the command given above with a value you prefer. Following is a sample command.Sample keytool command
keytool -import -alias newcert -file pkn.pem -keystore client-truststore.jks -storepass wso2carbon
Note
If you create a new client truststore, in place of the default
client-truststore.jks
, place the new truststore in the<IS_HOME>/repository/resources/security/
folder and add the following configuration to thedeployment.toml
file in the<IS_HOME>/repository/conf/
folder.[truststore] file_name = "customer-truststore-name.jks" password = "password"
-
Verify the hostname change by attempting to log in to My Account, getting a token from any grant type, etc.
-
If you are trying this on your local machine, open the
etc/hosts/
file and add the following entry to map the new hostname.is.dev.wso2.com
is an example in the sample entry below.127.0.0.1 is.dev.wso2.com
When you fully recreate the keystore, a new key-pair value is created. This means that any existing encrypted data (for example, users created before recreating the keystore) are still encrypted using the original keystore (wso2carbon.jks
). Therefore, older users will not be able to log in to My Account and need to be migrated. You can use one of the following options in this situation.
Option 1
Change the hostname. The hostname is part of the Subject of the Certificate (i.e., it is not part of the original key pair). Therefore, you can use the same public and private key pair to generate a new CSR with the updated CN (subject).
This can be done by adding the -dname
option when -certreq
is executed. Once the CA certificate is obtained, follow the instructions given in the importing certificates to the keystore topic to import it correctly.
By doing that, you do not need to touch the key pair, and any other operations performed using the same key pair, such as encryption, will not be affected.
Option 2
Create a new keystore with the instructions for the new hostname and then use that keystore for SSL/TLS by changing the Tomcat connector configuration as described in the Configure Keystores topic. This approach separates the keystores. The secondary keystore with the new hostname will only be used for Tomcat SSL/TLS communication, while the primary one will be used for all other operations (encryption, etc.). By doing this, you can ensure the existing encrypted data is not affected.
Note
If you have chosen Option 2, you need to maintain and secure the two keystores. Hence, Option 1 is recommended unless you prefer separation of keys used in SSL/TLS communication and internal data encryption, signing, etc.
Once this is done, you need to change all localhost
references. The following points would be where the references should be changed.
- The configurations in the
<IS_HOME>/repository/conf/deployment.toml
file reference localhost. -
Update the Identity Provider Entity ID
On the Management Console, go to Identity Provider > Resident Identity Provider > Inbound Authentication Configuration > OAuth2/OpenID Connect Configuration and update the Identity Provider Entity ID with any one of the following values:
-
If you have added the proxy port as
443
to the<IS_HOME>/repository/conf/deployment.toml
using the below configs, usehttps://<DOMAIN>/oauth2/token
as the entity ID value.[transport.https.properties] proxyPort = 443
-
Else, use
https://<DOMAIN>:<PORT>/oauth2/token
as the entity ID value.
-
-
The callback URLs of the federated identity providers.
- The callback URLs of the default system applications such as My Account and Console.
Note
By default, both the My Account and the Console Applications use the localhost:9443
domain within the callback URL. When you change the hostname, the WSO2 Identity Server will not be running on the localhost:9443
domain, and these values will not automatically change. Hence, you should manually change the callback URLs to use the new hostname.
To edit the default system applications such as My Account and Console, the following configuration should be added to the <IS_HOME>/repository/conf/deployment.toml
file:
[system_applications]
read_only_apps = []