Upgrade a single node OEL installation of Splunk UBA

Perform the following steps to upgrade a single node OEL installation of Splunk UBA.

OEL Leapp regularly updates its base operating system to the latest version of OEL 8.x. If you are a Splunk UBA customer using OEL, refrain from upgrading OEL until you verify the OEL version Leapp will upgrade your environment to is supported by the target UBA version. For information on the latest OEL version, see https://docs.oracle.com/en/operating-systems/oracle-linux/8 /.

Before you begin

Before upgrading Splunk UBA on a single server, confirm you meet the Upgrade Splunk UBA prerequisites

If you have enabled the integration that sends UBA audit data to Splunk Enterprise Security (ES), preserve the associated certificate before upgrading. For more info on sending audit data to ES see, Send Splunk UBA audit events to Splunk ES. Use the following command to export the certificate:

. /opt/caspida/bin/CaspidaCommonEnv.sh
sudo keytool -exportcert -alias "splunk es" -keystore $JAVA_HOME/lib/security/cacerts -rfc -file ~/splunk-es_cacert.pem

Perform UBA upgrade

Ensure that Splunk UBA is running before you upgrade, then perform the following tasks to upgrade Splunk UBA on a single server.

1. Obtain the Splunk UBA Software Update and download the file to the home/caspida directory. Select version 5.1.0.1 from the drop-down list. The downloadable archive file is named splunk-uba-software-upgrade-package_5101.tgz.
2. Extract the archive with the following command:

   tar xfz /home/caspida/splunk-uba-software-upgrade-package_5101.tgz -C /home/caspida
   

   The following files are extracted:
   • splunk-uba-software-update-000009-5101.tgz
   • splunk-uba-software-update-000009-5101.tgz.md5sum
3. Extract the software update package in the /home/caspida directory:

   tar xfz /home/caspida/splunk-uba-software-update-000009-5101.tgz -C /home/caspida

4. Run the following command:

   sed -i 's|\\$? -ne 0|\\$? -e 100|g' /home/caspida/patch_uba_5101/bin/utils/patch_uba.sh

5. Apply the patch with the following command:

   /home/caspida/patch_uba_5101/bin/utils/patch_uba.sh -p /home/caspida/patch_uba_5101

   The command installs the new Splunk UBA software, restarts Splunk UBA, and then restarts the data sources.

Re-import the certificate used for sending UBA audit events to Splunk ES

If you have enabled the integration that sends UBA audit data to Splunk Enterprise Security (ES), and you preserved the associated certificate in the Before you begin step, you can now re-import that certificate. Use the following command to re-import the certificate:

. /opt/caspida/bin/CaspidaCommonEnv.sh
sudo keytool -import -alias "splunk es" -keystore $JAVA_HOME/lib/security/cacerts -file ~/splunk-es_cacert.pem

Next steps

Verify a successful upgrade of Splunk UBA.