Upgrade a distributed AMI or OVA installation of Splunk UBA

Before upgrading Splunk UBA in a distributed deployment, be sure you have verified the Upgrade Splunk UBA prerequisites. Make sure that the prerequisites are verified on each server in the distributed deployment.

Distributed environment upgrade steps

Install Splunk UBA 5.0.4 on the master node only. The upgrade script will update all relevant files on the other Splunk UBA nodes. Ensure that Splunk UBA is running before you upgrade.

To obtain and install Splunk UBA 5.0.4, perform the following tasks on the master node:

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-update_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-update_504 directory:

   tar xfz /home/caspida/splunk-uba-software-update_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-update_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.
5. Run the following commands to synchronize the CaspidaSecurity.jar file to all nodes in your deployment.

   /opt/caspida/bin/Caspida stop
   /opt/caspida/bin/Caspida sync-cluster
   /opt/caspida/bin/Caspida start
   

Apply security patches on Ubuntu

If you are upgrading an Ubuntu system, perform 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 master node as the caspida user.
2. On the master node, run the following command to stop Splunk UBA and all services:

   /opt/caspida/bin/Caspida stop-all

3. On each Splunk UBA node, perform the following tasks:
   1. Log in as the caspida user.
   2. 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?

   3. Run the following command:

      sudo apt autoremove

   4. 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.
   5. Run the following command:

      sudo unattended-upgrade -d

   6. Edit the /etc/init.d/zookeeper-server file. 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 $*"
      

   7. Reboot the system:

      sudo reboot

4. On the master node, run the following command to start Splunk UBA and all services:

   /opt/caspida/bin/Caspida start-all

Next steps

Verify a successful upgrade of Splunk UBA.