Upgrade a single node AMI or OVA installation of Splunk UBA

Before upgrading Splunk UBA on a single server, be sure you have verified the Upgrade Splunk UBA prerequisites.

Single server upgrade steps

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 5.0.4 from the drop-down list. The downloadable archive file is named splunk-uba-software-upgrade-package_504.tgz.
2. Extract the archive with the following command:

   tar xfz /home/caspida/splunk-uba-software-upgrade-package_504.tgz -C /home/caspida

   The following files are extracted into the splunk-uba-software-upgrade-package_504 directory:

   • Splunk-UBA-5.0-Overlay-Packages-RHEL-7.8.tgz
   • Splunk-UBA-5.0-Overlay-Packages-RHEL-7.8.tgz.md5sum
   • splunk-uba-software-update-000002-504.tgz
   • splunk-uba-software-update-000002-504.tgz.md5sum
   • uba-ext-pkgs-5.0.4.tgz
   • uba-ext-pkgs-5.0.4.tgz.md5sum
3. Extract the software update package in the /home/caspida/splunk-uba-software-upgrade-package_504 directory:

   tar xfz /home/caspida/splunk-uba-software-upgrade-package_504/splunk-uba-software-update-000002-504.tgz -C /home/caspida

4. Apply the patch with the following command:

   /home/caspida/patch_uba_504/bin/utils/patch_uba.sh -p /home/caspida/patch_uba_504 -e /home/caspida/splunk-uba-software-upgrade-package_504/uba-ext-pkgs-5.0.4.tgz

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

Apply security patches on Ubuntu

If you are upgrading an Ubuntu system, Splunk recommends performing the following tasks to apply the latest security patches:

Applying the security patches can take up to one hour.

1. Log in to the Splunk UBA server as the caspida user.
2. Run the following command to stop Splunk UBA and all services:

   /opt/caspida/bin/Caspida stop-all

3. Run the following commands to install latest unattended-upgrades package:

   sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 6A030B21BA07F4FB
   sudo apt update
   sudo apt install unattended-upgrades
   

   If you see the following prompt, select keep the local version currently installed:

   What do you want to do about modified configuration file 50unattended-upgrades?

4. Run the following command:

   sudo apt autoremove

5. Edit the /etc/apt/apt.conf.d/50unattended-upgrades file and un-comment the following line:

   Skip this step if you have previously applied security patches to your Ubuntu environment following these instructions.

   "${distro_id}:${distro_codename}-security";

   Leave all other lines commented out.
6. Run the following command:

   sudo unattended-upgrade -d

7. Edit the /etc/init.d/zookeeper-server file and change su to runuser in all of the following lines:

   Skip this step if you have previously applied security patches to your Ubuntu environment following these instructions.

   su -s /bin/bash zookeeper -c "${DAEMON_SCRIPT} start"
   su -s /bin/bash zookeeper -c "${DAEMON_SCRIPT} stop"
   su -s /bin/bash zookeeper -c "zookeeper-server-initialize $*"
   

8. Reboot the system:

   sudo reboot

9. Run the following command to start Splunk UBA and all services:

   /opt/caspida/bin/Caspida start-all

Next step

Verify a successful upgrade of Splunk UBA.