Splunk Mastery: Build and Deploy Every Essential Component

Set up the license server on a management console using Ubuntu, create a Splunk user, download and install Splunk Enterprise, configure permissions, start Splunk, and verify access on port 8000.

Set up a license server, add and validate licenses, enable auto start as Splunk, install the log analysis app, and verify licensing on startup.

Install Splunk Enterprise on Linux via tar, create Splunk user, start Splunk, and enable boot start; access via IP:8000, prepare for clustering across indexers, master node, search head cluster.

Set up Splunk receiving by configuring a receiving port (9997) on each indexer, ensuring firewall access and readiness to receive logs.

Join each indexer to the licensed server by updating settings licensing to peer, saving, and restarting, ensuring the entire cluster is connected and all systems report a happy status.

Set up a manager node for the Splunk indexer cluster, enable indexer clustering, and configure replication and search factors to ensure data availability.

Configure and add peer indexers to a Splunk indexer cluster by enabling indexer clustering, setting peer nodes, selecting replication ports, and restarting to complete replication.

Troubleshoot GUID conflicts in a Splunk deployment by removing the instance.config to reset the GUID, then restart the master node and indexers to generate a fresh GUID.

Change the hostname in both Splunk instance references by editing server.conf and inputs.conf, then restart the instances. Verify indexer clustering shows 2 and 3 up and fully searchable.

The lecture demonstrates manually configuring forwarding from the manager node to indexers with forwarding and receiving, sending logs to port 9997, ensuring logs reside on indexers rather than master node.

Learn to deploy apps from the manager node to an indexer cluster using manager apps, validate configurations, push changes, and manage orderly restarts to keep indexers online.

Manage data rebalance and thresholds in the Splunk manager node to keep indexes evenly balanced. Learn how to perform a rolling restart and adjust replication and search factors.

Define a dedicated management console to monitor Splunk health with pre-built dashboards, then add systems as search peers to enable distributed search with a search head and deployment server.

Add indexers as search peers in distributed search and save changes to enable them. Then verify in the overview and adjust server roles, turning off kv store if needed.

Configure a new search peer to join the deployment server to the distributed management console, clarifying that 185 is the deployment server and 170 is the management console.

Explore the Splunk management console’s topology view and overview mode, filter by status and indexing rate, and analyze CPU and memory distribution across deployment servers, search heads, and license managers.

Fix a miscategorized server by editing server roles in settings general setup, labeling it as a deployment server, removing the kv store role, then apply changes to update the topology.

Explore the overview tab in the dmc to monitor indexers, search heads, deployment servers, and peers, view indexing performance, resource usage, and search activity.

Identify and fix misconfigured deployment server by validating names and roles in the console, remove the indexer role, and correct forwarder and license settings to restore apps and clients.

Fix conflicting guides by removing the instance.config and restarting Splunk to restore deployment client connections. Verify deployment client conf targets 185 and 8089 and monitor Splunk Forwarder management for clients.

Explore Splunk assist, a cloud-connected tool that analyzes your apps, certificates, and configurations to provide insights into your environment and keep setups up to date.

Explore health checks and tab-based health dashboards to diagnose Splunk deployments, monitor indexers, search heads, licenses, and deployment servers for optimal performance.

Set up the search head, configure log forwarding to indexers via outputs.conf tcp out stanza, and validate replication and log delivery across peers.

Troubleshoot hostname discrepancies in Splunk by updating inputs and set server name on each node, restart master and indexers, and verify host fields in inputs.conf.

Compare heavy forwarders and universal forwarders, noting universal forwarders are lightweight, GUI-less data senders managed by deployment servers, while heavy forwarders modify data, call APIs, and forward logs.

SSH into the deployment server, stop and start Splunk, adjust server and inputs conf to set the deployment server name, and configure forwarding to the indexer for app deployment.

Configure a deployment server to manage apps, build server classes, and enable clients and forwarders to pull updates from the deployment server.

Join a universal forwarder to the deployment server to centrally manage lightweight forwarders that ingest logs, configure with server classes and apps, and monitor via forwarder management.

Learn how to merge local and default Splunk app directories automatically using a force true deployment with a search head cluster, including a PowerShell script to push to all heads.

Splunk 9.2 introduces deployment server indexes like phone home, app event, and client, which can hide missing clients unless you configure search peers or index and forward to indexers.

Explore Splunk 10 agent management, troubleshoot universal forwarders, and uncover effective configurations to verify inputs and outputs, deployment settings, and server.conf insights.

Learn how to set up agent management in Splunk 10 by configuring the Pass4SIM key in server.conf, deploying the Splunk TA effective configuration, restarting the agent, and building server classes.

Configure a search head cluster with three search heads and a deployer, document IPs and the master node, and enable distributed search to indexers using at least four Splunk instances.

Validate the search head cluster by inspecting internal logs across hosts and confirming forwarding to the indexers. Note that deployer managed settings limit available options.

Initialize the new search head with auth, management URI, replication port, replication factor, secret key, and label, then add it to the cluster with the cluster member add command.

Push apps to the search head cluster with the deployer, choosing default or full modes, merging local and default files, and delivering a tarball-based configuration bundle.

Upgrade your splunk environment in three tiers, prioritizing data continuity and management components, and keeping indexers last to avoid search issues.

Prepare for Splunk upgrades by snapshotting and backing up configurations, following documented upgrade paths and requirements, verifying compatibility, and scheduling a maintenance window with user notice to minimize downtime.

Check your splunk version and follow the upgrade path before downloading target release. Back up splunk, install with tar on linux, and start to complete migration, preserving apps and licenses.

Upgrade the distributed management console to view health quickly; download the latest version, stop Splunk, unzip, run the Linux upgrade, restart Splunk, and confirm the console returns.

Learn how to upgrade the Splunk management node, handle permissions, validate licenses, and restore service during downtime while ensuring index consistency.

Learn how to upgrade the Splunk deployer, bring it down, apply Splunk 9.3, and bring it back online within a maintenance window while notifying users of potential availability impact.

Upgrade the deployment server by downloading the target version, untarring it into the same directory, stopping Splunk, replacing it, restarting Splunk, and accepting the license.

Upgrade license server and heavy forwarders by downloading the latest version, stopping Splunk, untar the file, setting permissions, restarting Splunk as Splunk, and accepting the license agreement.

Upgrade the Splunk universal forwarder by downloading the target version, stopping the forwarder, and applying the tar or package upgrade in place, then restarting and accepting the EULA.

Enable maintenance mode on the manager node, prep and upgrade all indexers in cluster with downloaded files, restart them, then disable maintenance mode to minimize downtime as data replication completes.

Perform an offline upgrade of a Splunk search head cluster by stopping all members, upgrading each, then upgrading the deployer, transferring captaincy, and restarting the cluster during a maintenance window.