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Wazuh SIEM Deployment: Complete Error Resolution Guide | cyberrscourse

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Description: "Fix version conflicts, disk space exhaustion, certificate errors & migration bugs in Wazuh SIEM. Technical solutions from cyberrscourse security labs."

Wazuh SIEM Deployment: Solutions to 5 Critical Installation Errors

A cyberrscourse technical reference | By @cyberrscourse

What This Guide Covers

This cyberrscourse technical guide provides tested solutions for the most common Wazuh SIEM deployment failures. Each section includes:

✅ Problem description (what error you see)

✅ Root cause analysis (why it happens)

✅ Step-by-step solution (how to fix it)

✅ Prevention strategy (how to avoid it)

Use case: Deploy Wazuh SIEM in VMware/VirtualBox lab environments

Target versions: Wazuh 4.7.5 (stable) or 4.14.7 (latest)

Prerequisites:

  • Basic terminal/command-line skills
  • Understanding of virtual machines
  • Ability to read error messages

Time to deploy: 2-4 hours (with this troubleshooting guide)

Why Deploy Wazuh SIEM? (Quick Context)

What it does: Monitors all computers in your network for security threats, compliance violations, and suspicious behavior.

Why security professionals use it:

  • Free alternative to $50,000/year commercial SIEM tools (Splunk, QRadar)
  • Built-in MITRE ATT&CK framework mapping
  • Compliance monitoring (PCI DSS, GDPR, HIPAA)
  • Real-time threat detection with 3,000+ rules

What you'll learn from this cyberrscourse guide: How to deploy security monitoring infrastructure and troubleshoot complex distributed systems.

Career value: SOC Analyst, Security Engineer, and Incident Response roles require SIEM experience.

System Architecture (Understanding Before Deploying)

Component Overview

Wazuh operates as a distributed system with four independent components. Understanding this architecture prevents 90% of configuration mistakes.

Simple explanation: Think of it like a home security system with cameras (Agents), a recording DVR (Indexer), an AI analyzer (Manager), and a monitor (Dashboard).

Technical architecture:

[Monitored Computer]
       ↓
Wazuh Agent (Sensor)
  • Collects: logs, file changes, process activity
  • Resource usage: ~35MB RAM
  • Platforms: Windows, Linux, macOS
       ↓ TCP/1514
Wazuh Manager (Analysis Engine)
  • Processes: 3,000+ detection rules
  • Technology: OSSEC-based
  • Resource needs: 2GB RAM, 10GB disk
       ↓ HTTPS/9200
Wazuh Indexer (Storage)
  • Technology: OpenSearch (Elasticsearch fork)
  • Stores: Security events, metadata
  • Resource needs: 4GB RAM, 50GB+ disk
       ↓ HTTPS/443
Wazuh Dashboard (UI)
  • Technology: Kibana fork
  • Provides: Visualization, alerts, reports
  • Resource needs: 2GB RAM
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Component Dependencies (Critical for Troubleshooting)

Component Depends On Can Function Without
Agent Manager Dashboard, Indexer
Manager Indexer Dashboard
Indexer None Dashboard, Manager
Dashboard Indexer Agent, Manager

Key insight from cyberrscourse labs:

  • The core monitoring (Agent → Manager → Indexer) can work WITHOUT the Dashboard
  • If the Dashboard fails, you can still access security events via CLI
  • Each component failure requires different troubleshooting approaches

Minimum Resource Requirements

Based on cyberrscourse testing:

For lab environments (1-5 agents):

  • CPU: 4 cores
  • RAM: 8GB (4GB Indexer + 2GB Manager + 2GB Dashboard)
  • Disk: 80GB minimum (100GB recommended)
  • Network: 100Mbps minimum

For production (50+ agents):

  • CPU: 8+ cores
  • RAM: 16GB+
  • Disk: 200GB+ with log rotation configured
  • Network: 1Gbps recommended

Problem #1: Nested Virtualization Failure (WSL2 in VMware)

Error Message 

WSL2 is unable to start since virtualization is not enabled on this machine.
Error code: Wsl/InstallDistro/Service/RegisterDistro/CreateVm/HCS_E_HYPERV_NOT_INSTALLED
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When This Happens

You're trying to run WSL2 (Windows Subsystem for Linux) inside a VMware/VirtualBox virtual machine to install the Wazuh Manager.

Why It Fails (Root Cause)

Simple explanation: You're trying to run a virtual machine inside a virtual machine, but the outer VM doesn't allow it.

Technical explanation:

  • WSL2 requires hardware virtualization extensions (Intel VT-x or AMD-V)
  • VMware VMs don't expose these extensions to guest VMs by default (security/stability)
  • WSL2 also requires systemd support (not available in WSL1)

Solution Options

Option 1: Enable Nested Virtualization (VMware)

# Shutdown the VM first
# Then in VMware: VM Settings → Processors → Enable:
# ☑ Virtualize Intel VT-x/EPT or AMD-V/RVI
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Requirements:

  • Physical CPU must support VT-x/AMD-V
  • VMware Workstation Pro 14+ or Fusion 10+
  • Performance penalty (15-30% overhead)

Option 2: Use Separate VMs (Recommended by cyberrscourse)

Instead of WSL2 inside Windows VM:

Setup 1: Ubuntu 22.04 VM (Wazuh Manager + Indexer + Dashboard)
Setup 2: Windows 11 VM (Wazuh Agent for monitoring)
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Advantages:

  • No nested virtualization needed
  • Better performance
  • Easier troubleshooting (isolated components)
  • Matches real-world deployment patterns

Option 3: Use Physical Linux Machine

Install Ubuntu directly on hardware or use existing Linux server.

Recommended Approach (cyberrscourse Labs)

Use a dedicated Ubuntu 22.04 VM for Wazuh infrastructure:

  1. Download Ubuntu 22.04 Server ISO
  2. Create VM with:
    • 4 CPU cores
    • 8GB RAM
    • 80GB disk
  3. Install Wazuh Manager, Indexer, Dashboard here
  4. Install Agents on separate Windows/Linux VMs for monitoring

Why this approach wins:

  • Avoids virtualization complexity
  • Mirrors production deployments
  • Simplifies troubleshooting
  • Better resource management

Prevention Strategy

❌ Avoid: Running VMs inside VMs (nested virtualization) unless specifically required

✅ Do: Use separate VMs for infrastructure (Manager/Indexer) and monitored systems (Agents)

Problem #2: Version Mismatch - Agent Won't Connect to Manager

Error Message 

WARNING: Couldn't connect to server '192.168.84.130': 
'Agent version must be lower or equal to manager version'
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When This Happens

  • Agent appears "Connected" in its own interface
  • Manager doesn't show the Agent in connected list
  • No security events appear in Dashboard

Diagnosis Steps

Step 1: Check Agent version

# Windows
Get-Content "C:\Program Files (x86)\ossec-agent\VERSION.json"
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# Linux
cat /var/ossec/etc/VERSION
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Step 2: Check Manager version

/var/ossec/bin/wazuh-control info | grep VERSION
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Step 3: Compare versions

Component Version Status
Agent (Windows) 4.14.7 Downloaded from wazuh.com
Manager (Ubuntu) 4.7.5 Installed months ago

Root cause: Agent is NEWER than Manager (Wazuh enforces backward compatibility only)

Solution: Upgrade Manager to Match Agent

Add Wazuh repository (if not already added):

curl -s https://packages.wazuh.com/key/GPG-KEY-WAZUH | \
  gpg --no-default-keyring --keyring gnupg-ring:/usr/share/keyrings/wazuh.gpg --import

echo "deb [signed-by=/usr/share/keyrings/wazuh.gpg] \
  https://packages.wazuh.com/4.x/apt/ stable main" | \
  sudo tee -a /etc/apt/sources.list.d/wazuh.list

sudo chmod 644 /usr/share/keyrings/wazuh.gpg
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Upgrade Manager and Indexer:

sudo apt update
sudo apt upgrade wazuh-manager wazuh-indexer -y
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Verify upgrade:

/var/ossec/bin/wazuh-control info | grep VERSION
# Should show: v4.14.7
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Restart services:

sudo systemctl restart wazuh-manager
sudo systemctl restart wazuh-indexer
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Known Issue: Dashboard Migration Bug (4.7.5 → 4.14.7)

Problem: Upgrading Dashboard to 4.14.7 causes infinite migration loop

Error in logs:

sudo journalctl -u wazuh-dashboard -n 100
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{"message":"Detected mapping change in \"properties.query\""}
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(Repeats infinitely)

Workaround from cyberrscourse labs:

# Remove broken 4.14.7 Dashboard
sudo apt remove --purge wazuh-dashboard -y

# Install stable 4.7.5 Dashboard instead
sudo apt install wazuh-dashboard=4.7.5-1 -y

# Prevent auto-upgrade
sudo apt-mark hold wazuh-dashboard
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Result: Dashboard 4.7.5 works perfectly with Manager/Indexer 4.14.7

Prevention Strategy

Before installing Agents:

  1. Check current Manager version: /var/ossec/bin/wazuh-control info | grep VERSION
  2. Download matching Agent version from Wazuh packages archive
  3. Or upgrade Manager first before deploying Agents

Version compatibility rule (from cyberrscourse testing):

Agent version ≤ Manager version  ✅ Supported
Agent version > Manager version  ❌ Fails
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Advanced: Mixed Version Deployment

Working configuration from cyberrscourse labs:

Wazuh Manager:    4.14.7 ✅
Wazuh Indexer:    4.14.7 ✅
Wazuh Dashboard:  4.7.5  ✅ (stable, no migration bug)
Wazuh Agent:      4.14.7 ✅
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Key insight: Dashboard version can be older than Manager/Indexer without issues.

Problem #3: Disk Space Exhaustion - "No Space Left on Device"

Error Messages

Indexer failure:

Caused by: java.io.IOException: No space left on device
    at java.base/java.io.FileOutputStream.writeBytes(Native Method)
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Dashboard timeout:

{
  "tags":["error","opensearch","data"],
  "message":"[TimeoutError]: Request timed out"
}
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Services crash or refuse to start

When This Happens

  • VM initially allocated with 20-30GB disk
  • After 1-4 hours of operation, Indexer stops writing logs
  • Dashboard shows "Loading..." indefinitely
  • New security events aren't recorded (critical security gap!)

Diagnosis

Check disk usage:

df -h
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Expected output showing the problem:

Filesystem      Size  Used Avail Use% Mounted on
/dev/sda3        20G   19G   500M  98% /
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Identify what's consuming space:

# Indexer data (largest consumer)
sudo du -sh /var/lib/wazuh-indexer/
# Output: 8.4G

# System logs
sudo du -sh /var/log/
# Output: 2.1G

# Package cache
sudo du -sh /var/cache/apt/
# Output: 1.2G
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Why Security Tools Need Massive Storage

Simple explanation: Security monitoring records EVERYTHING happening on every computer. This generates gigabytes per day.

Technical breakdown (from cyberrscourse testing):

  • 1 monitored Windows PC: ~200MB/day in normal operation
  • 5 monitored systems: ~1GB/day
  • 50 systems: ~10GB/day
  • Plus retention: Most regulations require 30-90 days of logs

Space growth formula:

Daily growth = (Number of agents × 200MB) × Activity factor
Activity factor: 1.0 (normal), 3.0 (busy servers), 5.0+ (under attack)
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Solution: Expand VM Disk Storage

Step 1: Shutdown VM

sudo shutdown -h now
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Step 2: Expand disk in hypervisor

VMware:

  • VM Settings → Hard Disk → Expand
  • Set to 80GB (or 100GB for production-like testing)

VirtualBox:

VBoxManage modifyhd "path\to\disk.vdi" --resize 81920
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Step 3: Restart VM and expand partition

# Install required tools
sudo apt install cloud-guest-utils -y

# Expand partition (assumes /dev/sda3)
sudo growpart /dev/sda 3

# Resize filesystem to use new space
sudo resize2fs /dev/sda3

# Verify expansion
df -h | grep sda3
# Should show: /dev/sda3  79G  15G  61G  20% /
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Step 4: Immediate cleanup (free space now)

# Remove unused packages
sudo apt autoremove -y
sudo apt autoclean

# Trim system logs (keep only 100MB)
sudo journalctl --vacuum-size=100M

# Clear package cache
sudo rm -rf /var/cache/apt/archives/*

# Check freed space
df -h
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Long-Term Prevention (cyberrscourse Recommendations)

Set up monitoring BEFORE disk fills:

# Install monitoring
sudo apt install prometheus-node-exporter -y

# Or simple cron alert
crontab -e
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Add this line to get daily email if disk >80% full:

0 8 * * * df -h / | grep -v "^Filesystem" | awk '{if($5+0 > 80) print "Disk usage alert: " $5}'
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Configure log rotation:

# Edit indexer rotation policy
sudo nano /etc/wazuh-indexer/opensearch.yml
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Add automatic index deletion:

# Delete indices older than 30 days
indices.lifecycle.history_index_enabled: true
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Proper sizing guide (cyberrscourse labs):

Environment Agents Daily Growth Minimum Disk Recommended
Learning lab 1-5 1GB/day 50GB 80GB
Small production 10-25 5GB/day 100GB 200GB
Medium production 50-100 20GB/day 500GB 1TB

Emergency Recovery (If Already at 100%)

When services are crashed and disk is completely full:

# 1. Delete package cache (safest, recovers ~1-2GB)
sudo rm -rf /var/cache/apt/archives/*

# 2. Trim logs aggressively
sudo journalctl --vacuum-size=10M

# 3. Check space
df -h

# 4. If still critical, remove old Indexer indices
sudo curl -X DELETE "localhost:9200/wazuh-alerts-4.x-2026.08.*"
# (Deletes August indices, keeps September+)

# 5. Restart services
sudo systemctl restart wazuh-indexer
sudo systemctl restart wazuh-manager
sudo systemctl restart wazuh-dashboard
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Important: Deleting indices = losing security logs. Do this only as last resort.

Key Takeaway from cyberrscourse Testing

Disk space is a security control, not just IT infrastructure:

  • Full disk = blind to attacks
  • Attackers can intentionally fill logs (log flooding attack)
  • Compliance violations (regulations require log retention)

Always allocate 3x the minimum requirement for safety margin.

Problem #4: SSL Certificate Path Mismatch - Dashboard Won't Start

Error Message 

Error: ENOENT: no such file or directory, 
open '/etc/wazuh-dashboard/certs/dashboard-key.pem'
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When This Happens

  • Dashboard service starts but immediately crashes
  • Web UI shows "Connection refused" or "Unable to connect"
  • Usually occurs after upgrading from 4.7.5 to newer versions

Root Cause Analysis

Simple explanation: The Dashboard configuration file is looking for certificate files with one name, but the actual files have a slightly different name.

Technical explanation: Wazuh naming conventions changed between versions:

  • v4.7.5: Used wazuh-dashboard-key.pem
  • v4.14.7: Expects dashboard-key.pem

Diagnosis Steps

Step 1: Check Dashboard status

sudo systemctl status wazuh-dashboard
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Look for ENOENT errors in the output.

Step 2: Examine logs

sudo journalctl -u wazuh-dashboard -n 50 --no-pager
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Step 3: Compare config expectations vs. reality

What config expects:

sudo grep "server.ssl" /etc/wazuh-dashboard/opensearch_dashboards.yml
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Output:

server.ssl.key: "/etc/wazuh-dashboard/certs/dashboard-key.pem"
server.ssl.certificate: "/etc/wazuh-dashboard/certs/dashboard.pem"
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What actually exists:

sudo ls -la /etc/wazuh-dashboard/certs/
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Output:

-r-------- 1 wazuh-dashboard wazuh-dashboard 1704 wazuh-dashboard-key.pem
-r-------- 1 wazuh-dashboard wazuh-dashboard 1289 wazuh-dashboard.pem
-r-------- 1 wazuh-dashboard wazuh-dashboard 1204 root-ca.pem
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The mismatch:

  • Config wants: dashboard-key.pem
  • File is named: wazuh-dashboard-key.pem

Solution: Rename Certificate Files

Recommended approach from cyberrscourse labs (rename files to match config):

# Navigate to cert directory
cd /etc/wazuh-dashboard/certs/

# Rename key file
sudo mv wazuh-dashboard-key.pem dashboard-key.pem

# Rename certificate file
sudo mv wazuh-dashboard.pem dashboard.pem

# Verify permissions are correct
sudo chown wazuh-dashboard:wazuh-dashboard dashboard-key.pem dashboard.pem
sudo chmod 640 dashboard-key.pem dashboard.pem

# Restart Dashboard
sudo systemctl restart wazuh-dashboard

# Check status
sudo systemctl status wazuh-dashboard
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Alternative approach (update config, not recommended):

# Edit config to match existing filenames
sudo nano /etc/wazuh-dashboard/opensearch_dashboards.yml
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Change lines to:

server.ssl.key: "/etc/wazuh-dashboard/certs/wazuh-dashboard-key.pem"
server.ssl.certificate: "/etc/wazuh-dashboard/certs/wazuh-dashboard.pem"
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Why renaming files is better:

  • Future upgrades will work correctly
  • Matches official documentation
  • Config file may get overwritten during updates

Certificate Troubleshooting Checklist (cyberrscourse Method)

When ANY Wazuh component fails with certificate errors:

1. Verify file existence:

ls -la /etc/wazuh-dashboard/certs/
ls -la /etc/wazuh-indexer/certs/
ls -la /etc/wazuh-manager/certs/
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2. Check what config expects:

# Dashboard
grep -E "ssl|certificate|key" /etc/wazuh-dashboard/opensearch_dashboards.yml

# Indexer
grep -E "ssl|certificate|key" /etc/wazuh-indexer/opensearch.yml

# Manager
grep -E "ssl|certificate|key" /var/ossec/etc/ossec.conf
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3. Verify permissions:

# Dashboard certs should be readable by wazuh-dashboard user
sudo ls -l /etc/wazuh-dashboard/certs/
# Expected: -r-------- 1 wazuh-dashboard wazuh-dashboard
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4. Test certificate validity:

# Check if certificate is valid and not expired
sudo openssl x509 -in /etc/wazuh-dashboard/certs/dashboard.pem -text -noout | grep "Not After"
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Prevention Strategy

During initial installation:

# After installation, back up certificates
sudo tar -czf ~/wazuh-certs-backup.tar.gz \
  /etc/wazuh-dashboard/certs/ \
  /etc/wazuh-indexer/certs/ \
  /var/ossec/etc/certs/

# Document the installation
ls -la /etc/wazuh-dashboard/certs/ > ~/wazuh-cert-inventory.txt
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Before upgrades:

# Check current certificate names
ls -la /etc/wazuh-dashboard/certs/

# Read changelog for naming changes
apt-cache changelog wazuh-dashboard | head -50
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Common Certificate Errors (Quick Reference)

Error Cause Solution
ENOENT: no such file Filename mismatch Rename certs to match config
Permission denied Wrong ownership chown wazuh-dashboard:wazuh-dashboard
Certificate expired Old certs Regenerate certificates
Invalid certificate Corrupted file Restore from wazuh-install-files.tar

Restoring Certificates from Backup

If certificates are corrupted or deleted:

# Extract original certificates from installation archive
sudo tar -xzf ~/wazuh-install-files.tar

# Copy to correct location
sudo cp wazuh-install-files/wazuh-dashboard.pem /etc/wazuh-dashboard/certs/dashboard.pem
sudo cp wazuh-install-files/wazuh-dashboard-key.pem /etc/wazuh-dashboard/certs/dashboard-key.pem

# Set permissions
sudo chown wazuh-dashboard:wazuh-dashboard /etc/wazuh-dashboard/certs/*
sudo chmod 640 /etc/wazuh-dashboard/certs/*.pem

# Restart
sudo systemctl restart wazuh-dashboard
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Problem #5: Dashboard Infinite Loading Loop - "Server Not Ready"

Error Message (Dashboard UI) 

Wazuh dashboard server is not ready yet
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(Displays indefinitely, never loads)

Error in Logs 

sudo journalctl -u wazuh-dashboard -n 100
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Output:

{"message":"Detected mapping change in \"properties.query\""}
{"message":"Detected mapping change in \"properties.query\""}
{"message":"Detected mapping change in \"properties.query\""}
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(Repeats infinitely)

When This Happens

  • Upgrading Dashboard from 4.7.5 to 4.14.7
  • Dashboard service shows "active (running)" but UI never loads
  • Occurs after version upgrades, not fresh installations

Root Cause

Simple explanation: The Dashboard is trying to convert old saved data to a new format, but the conversion keeps failing and retrying forever.

Technical explanation:

  • Migration script updates saved objects schema (4.7.5 → 4.14.7)
  • Schema changes in properties.query mapping cause validation failure
  • Error handler catches exception, retries migration
  • Same exception occurs, creating infinite loop
  • Dashboard never reaches "ready" state

Solution: Downgrade Dashboard to Stable Version

This is a known bug in Wazuh 4.14.7 Dashboard (confirmed by cyberrscourse testing)

Step 1: Remove broken Dashboard:

sudo systemctl stop wazuh-dashboard
sudo apt remove --purge wazuh-dashboard -y
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Step 2: Install stable 4.7.5 version:

sudo apt install wazuh-dashboard=4.7.5-1 -y
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Step 3: Prevent automatic upgrade:

sudo apt-mark hold wazuh-dashboard
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Step 4: Start Dashboard:

sudo systemctl start wazuh-dashboard
sudo systemctl status wazuh-dashboard
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Step 5: Verify web UI:

Open browser: https://<server-ip>:443
Login with credentials from wazuh-install-files.tar
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Expected result: Dashboard loads in 20-30 seconds

Compatibility Note from cyberrscourse Labs

Working mixed-version configuration:

Component          Version    Status
─────────────────────────────────────
Wazuh Manager      4.14.7     ✅
Wazuh Indexer      4.14.7     ✅
Wazuh Dashboard    4.7.5      ✅ (stable, recommended)
Wazuh Agents       4.14.7     ✅
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Key insight: Dashboard version can lag behind Manager/Indexer without causing issues. Newer Dashboard version may introduce bugs.

Alternative Solution (Advanced)

If you MUST use Dashboard 4.14.7:

Clear saved objects and reinitialize:

# Stop Dashboard
sudo systemctl stop wazuh-dashboard

# Delete saved objects
sudo rm -rf /var/lib/wazuh-dashboard/opensearch_dashboards/*

# Delete migration state
sudo curl -X DELETE "localhost:9200/.opensearch_dashboards*"

# Restart Dashboard
sudo systemctl start wazuh-dashboard
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Warning: This deletes customizations, saved searches, and custom dashboards.

Prevention Strategy

Use N-1 versioning for production (cyberrscourse recommendation):

  • When Wazuh releases version X.Y.Z
  • Wait for version X.Y.(Z+1) to confirm stability
  • Use previous stable version for Dashboard component

Example:

  • Latest release: 4.14.7
  • Use for Manager/Indexer: 4.14.7 (core functionality)
  • Use for Dashboard: 4.7.5 (UI, less critical, more stable)

Verification: Confirming SIEM is Working (Even Without Dashboard)

Check Agent Connectivity

Command:

sudo /var/ossec/bin/agent_control -l
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Expected output:

Wazuh agent_control. List of available agents:
   ID: 000, Name: ubuntu-virtual-machine (server), IP: 127.0.0.1, Active/Local
   ID: 001, Name: Windows-PC, IP: any, Active
   ID: 002, Name: Linux-Workstation, IP: any, Active

List of agentless devices:
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What this means:

  • ✅ Agents are connected
  • ✅ Manager is receiving data
  • ✅ Core functionality working (even if Dashboard broken)

View Live Security Events (CLI Method)

Monitor real-time alerts:

sudo tail -f /var/ossec/logs/alerts/alerts.json
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Sample output:

{
  "timestamp":"2026-09-17T14:37:25.627+0530",
  "rule":{
    "level":3,
    "description":"Successful sudo to ROOT executed",
    "id":"5402",
    "mitre":{
      "id":["T1548.003"],
      "tactic":["Privilege Escalation","Defense Evasion"],
      "technique":["Sudo and Sudo Caching"]
    }
  },
  "agent":{"id":"001","name":"Windows-PC"},
  "data":{
    "srcuser":"john.doe",
    "dstuser":"root",
    "command":"powershell.exe"
  }
}
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Analysis (what each field means):

  • rule.description: What action was detected
  • rule.mitre: Maps to attacker technique (T1548.003 = Privilege Escalation via Sudo)
  • agent: Which monitored computer triggered the alert
  • data: Specific details (who, what command)

Query Indexer Directly (Bypass Dashboard)

Check if events are being stored:

curl -k -u "admin:YOUR_PASSWORD" \
  "https://localhost:9200/_cat/indices?v" | grep wazuh
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Expected output:

yellow open wazuh-alerts-4.x-2026.09.17 ...
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Count today's alerts:

curl -k -u "admin:YOUR_PASSWORD" \
  "https://localhost:9200/wazuh-alerts-4.x-*/_count"
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Output:

{"count":1847,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0}}
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What this confirms:

  • ✅ Indexer is receiving data
  • ✅ 1,847 security events recorded today
  • ✅ Storage layer functional

Test Detection Rules (Validation)

Trigger a test alert:

# Linux: Run command as sudo (triggers privilege escalation alert)
sudo whoami

# Windows: Failed login attempt
runas /user:FakeUser cmd.exe
# (Enter wrong password 3 times)
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Check if detected:

sudo grep "Successful sudo" /var/ossec/logs/alerts/alerts.log
sudo grep "authentication failed" /var/ossec/logs/alerts/alerts.log
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Performance Check

View system resource usage:

# Manager process
ps aux | grep wazuh-manager

# Indexer memory
sudo curl localhost:9200/_nodes/stats/jvm?pretty | grep heap_used_percent

# Disk usage
df -h | grep -E "sda|vda"
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Expected resource usage (cyberrscourse benchmarks):

Component CPU RAM Disk I/O
Manager 2-5% 850MB Low
Indexer 10-20% 3-4GB Medium
Dashboard 0-2% 150MB Low
Agent <1% 35MB Minimal

Key takeaway: System should be <20% CPU, <80% disk when idle

Performance Tuning & Optimization (cyberrscourse Recommendations)

Expected Resource Usage (Baseline Metrics)

Steady-state performance from cyberrscourse lab testing:

Component CPU Usage RAM Usage Disk I/O Network
Manager 2-5% 850MB Low (<10MB/s) Moderate
Indexer 10-20% 3.2-3.8GB Medium (~50MB/s) High
Dashboard 0-2% 150-200MB Minimal Low
Agent (Windows) <1% 35-40MB Minimal Low
Agent (Linux) <1% 25-30MB Minimal Low

Network traffic patterns:

  • Agent → Manager: 50-200 KB/s per agent (normal activity)
  • Manager → Indexer: Batched writes every 5 seconds
  • Dashboard → Indexer: Query-based (spikes during UI usage)

Indexer Optimization

Increase JVM heap (if system has 8GB+ RAM):

sudo nano /etc/wazuh-indexer/jvm.options
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Change:

-Xms4g
-Xmx4g
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(Allocates 4GB to Indexer, improve performance)

Disable unnecessary features:

# /etc/wazuh-indexer/opensearch.yml
opensearch_security.audit.type: none  # Disable audit logging
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Manager Optimization

Increase event processing rate:

<!-- /var/ossec/etc/ossec.conf -->
<global>
  <max_eps>1000</max_eps>  <!-- Events per second, default is 500 -->
</global>
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Enable log compression:

<logging>
  <compress_alerts>yes</compress_alerts>
  <compress_archives>yes</compress_archives>
</logging>
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Dashboard Performance

Reduce query load:

# /etc/wazuh-dashboard/opensearch_dashboards.yml
opensearch.requestTimeout: 30000  # 30 seconds
server.maxPayloadBytes: 10485760  # 10MB max payload
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Pre-Deployment Checklist (cyberrscourse Best Practices)

Use this checklist BEFORE starting installation to avoid the 5 problems documented above.

Infrastructure Requirements

Hardware/Virtual Machine:

  • [ ] CPU: 4 cores minimum (8+ for production)
  • [ ] RAM: 8GB minimum (16GB+ for production)
  • [ ] Disk: 80GB minimum (allocate 100GB for safety margin)
  • [ ] Network: 100Mbps minimum (1Gbps recommended)

Virtualization:

  • [ ] If using nested VMs, enable VT-x/AMD-V in hypervisor settings
  • [ ] Or use separate VMs (recommended approach)
  • [ ] Confirm systemd support (required for Wazuh services)

Network Configuration:

  • [ ] Firewall allows TCP/1514 (Agent → Manager)
  • [ ] Firewall allows TCP/9200 (Manager → Indexer)
  • [ ] Firewall allows TCP/443 (User → Dashboard)
  • [ ] Static IP or DHCP reservation for server
  • [ ] DNS resolution configured (or use IP addresses)

Version Planning

Before downloading:

  • [ ] Check Wazuh compatibility matrix
  • [ ] Download Manager version FIRST (this determines Agent version)
  • [ ] Use Dashboard 4.7.5 (stable, avoid 4.14.7 migration bug)
  • [ ] Ensure Agent version ≤ Manager version

Recommended versions (from cyberrscourse testing):

Manager:   4.14.7 (latest features)
Indexer:   4.14.7 (matches Manager)
Dashboard: 4.7.5  (stable, no bugs)
Agents:    4.14.7 (matches Manager)
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Installation Preparation

Before running install commands:

  • [ ] Update OS: sudo apt update && sudo apt upgrade -y
  • [ ] Check disk space: df -h (confirm >80GB available)
  • [ ] Verify time sync: timedatectl (critical for log correlation)
  • [ ] Backup current system: sudo tar -czf ~/pre-wazuh-backup.tar.gz /etc

Documentation:

  • [ ] Save IP addresses of all planned components
  • [ ] Document which systems will run Agents
  • [ ] Note admin passwords in password manager
  • [ ] Record installation date/version for future reference

Post-Installation Verification

Immediately after installation:

  • [ ] Backup certificates: sudo tar -czf ~/wazuh-certs.tar.gz /etc/wazuh-*/certs/
  • [ ] Save admin passwords from wazuh-install-files.tar
  • [ ] Test Agent connection: sudo /var/ossec/bin/agent_control -l
  • [ ] Verify event flow: sudo tail -f /var/ossec/logs/alerts/alerts.json
  • [ ] Access Dashboard: https://SERVER_IP:443
  • [ ] Create VM snapshot (easy rollback if needed)

Ongoing Monitoring (Security Operations)

Set up alerts for:

  • [ ] Disk usage >80% (critical security gap if logs stop)
  • [ ] Agent disconnections (blind spots in monitoring)
  • [ ] Indexer JVM heap usage >85% (performance degradation)
  • [ ] Failed login attempts to Dashboard (potential attack)
  • [ ] Certificate expiration warnings (30 days notice)

Configure log rotation:

# System logs
sudo journalctl --vacuum-size=500M

# Wazuh alerts (edit /var/ossec/etc/ossec.conf)
<ossec_config>
  <global>
    <logall_json>yes</logall_json>
    <compress_alerts>yes</compress_alerts>
  </global>
</ossec_config>
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Backup strategy:

# Weekly cron job (edit with: crontab -e)
0 2 * * 0 tar -czf /backup/wazuh-$(date +\%Y\%m\%d).tar.gz /etc/wazuh-* /var/ossec/etc/
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Technical Lessons from cyberrscourse SIEM Deployments

Lesson 1: Version Compatibility is Non-Negotiable

Problem identified:

  • Agent version must be ≤ Manager version (strict enforcement)
  • Dashboard 4.14.7 migration bug causes infinite loop
  • Mixed versions can work IF tested first

Best practice from cyberrscourse:

  • Production: Use N-1 stable version (one behind latest)
  • Labs: Use latest for Manager/Indexer, stable for Dashboard
  • Always: Test upgrades in dev environment first

Implementation:

# Check current versions
/var/ossec/bin/wazuh-control info | grep VERSION

# Compare with available versions
apt-cache policy wazuh-manager wazuh-indexer wazuh-dashboard

# Pin stable Dashboard version
sudo apt-mark hold wazuh-dashboard
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Lesson 2: Distributed Systems Require Component-Level Monitoring

Key insight: UI health ≠ System health

What can happen simultaneously:

  • ✅ Manager processing alerts
  • ✅ Indexer storing events
  • ✅ Agents sending data
  • ❌ Dashboard broken

Monitoring strategy (cyberrscourse method):

# Create monitoring script
cat > ~/wazuh-health-check.sh << 'EOF'
#!/bin/bash
echo "=== Wazuh Health Check ==="
echo "Manager: $(systemctl is-active wazuh-manager)"
echo "Indexer: $(systemctl is-active wazuh-indexer)"
echo "Dashboard: $(systemctl is-active wazuh-dashboard)"
echo "Agents connected: $(/var/ossec/bin/agent_control -l | grep -c Active)"
echo "Disk usage: $(df -h / | awk 'NR==2 {print $5}')"
echo "Indexer heap: $(curl -s localhost:9200/_nodes/stats/jvm?pretty | grep heap_used_percent)"
EOF
chmod +x ~/wazuh-health-check.sh

# Run every 5 minutes
(crontab -l 2>/dev/null; echo "*/5 * * * * ~/wazuh-health-check.sh >> ~/wazuh-health.log") | crontab -
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Lesson 3: Capacity Planning Prevents Outages

Failure mode: Disk exhaustion = security blind spot

Why critical in security context:

  • Attackers exploit blind spots
  • Compliance violations (log retention requirements)
  • Incident response impossible without logs

Sizing formula (from cyberrscourse testing):

Required disk = (Agents × 200MB/day × Retention days) × 1.5 safety margin

Examples:
5 agents, 30-day retention: 5 × 200MB × 30 × 1.5 = 45GB
50 agents, 90-day retention: 50 × 200MB × 90 × 1.5 = 1.35TB
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Proactive monitoring:

# Alert when disk >80%
cat > /usr/local/bin/disk-alert.sh << 'EOF'
#!/bin/bash
USAGE=$(df / | awk 'NR==2 {print $5}' | sed 's/%//')
if [ $USAGE -gt 80 ]; then
  echo "ALERT: Disk usage at ${USAGE}%" | mail -s "Disk Alert" admin@company.com
fi
EOF
chmod +x /usr/local/bin/disk-alert.sh
(crontab -l; echo "0 */6 * * * /usr/local/bin/disk-alert.sh") | crontab -
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Lesson 4: Certificates Are Failure Points, Not Formalities

Common failure patterns:

  • Filename mismatches (config vs. actual files)
  • Permission errors (wrong ownership/chmod)
  • Path changes during upgrades
  • Expired certificates (lack of monitoring)

Prevention checklist (cyberrscourse security ops):

# 1. Document certificate locations immediately after install
ls -laR /etc/wazuh-*/certs/ > ~/wazuh-cert-inventory.txt

# 2. Backup certificates
tar -czf ~/wazuh-certs-$(date +%Y%m%d).tar.gz /etc/wazuh-*/certs/

# 3. Monitor expiration
for cert in /etc/wazuh-dashboard/certs/*.pem; do
  openssl x509 -in "$cert" -noout -enddate 2>/dev/null
done

# 4. Set file permissions correctly (one-time setup)
sudo chown -R wazuh-dashboard:wazuh-dashboard /etc/wazuh-dashboard/certs/
sudo chmod 640 /etc/wazuh-dashboard/certs/*.pem
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Lesson 5: Error Logs > Status Messages for Troubleshooting

Common mistake: Trusting systemctl status

Example:

$ sudo systemctl status wazuh-dashboard
● wazuh-dashboard.service - Wazuh dashboard
   Loaded: loaded
   Active: active (running)  ← LIES
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Reality (from logs):

$ sudo journalctl -u wazuh-dashboard -n 20
"Error: ENOENT: no such file or directory"  ← TRUTH
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Debugging procedure (cyberrscourse method):

  1. Check service status (quick overview)
  2. Read last 50 log lines (actual errors)
  3. Check resource usage (CPU/RAM/disk)
  4. Verify connectivity (network/ports)
  5. Compare config vs. reality (paths, versions, permissions) 
# Full diagnostic script
sudo systemctl status wazuh-dashboard
sudo journalctl -u wazuh-dashboard -n 50 --no-pager
sudo ss -tlnp | grep -E '443|9200|1514'
df -h
free -h
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Functional Testing: Validating Detection Capabilities

Once deployed, test that Wazuh actually detects security events. These tests confirm the SIEM is functional.

Test 1: Privilege Escalation Detection (MITRE T1078)

Objective: Confirm detection of elevation to admin/root

Windows test:

runas /user:Administrator cmd.exe
# Enter admin password when prompted
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Linux test:

sudo su -
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Expected alert:

{
  "rule": {
    "level": 3,
    "description": "Successful sudo to ROOT executed",
    "id": "5402",
    "mitre": {
      "id": ["T1548.003"],
      "tactic": ["Privilege Escalation"],
      "technique": ["Sudo and Sudo Caching"]
    }
  }
}
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Verify:

sudo grep "sudo to ROOT" /var/ossec/logs/alerts/alerts.log
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Status: ✅ Should detect within 5-10 seconds

Test 2: File Integrity Monitoring (Critical System Files)

Objective: Verify FIM detects unauthorized file changes

Test on Linux:

# Modify critical system file
echo "# Test modification" | sudo tee -a /etc/passwd
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Test on Windows:

# Modify hosts file
Add-Content C:\Windows\System32\drivers\etc\hosts "# Test"
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Expected alert:

{
  "rule": {
    "description": "Integrity checksum changed",
    "level": 7,
    "id": "550"
  },
  "syscheck": {
    "path": "/etc/passwd",
    "event": "modified",
    "md5_after": "...",
    "md5_before": "..."
  }
}
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Verify:

sudo grep "Integrity checksum changed" /var/ossec/logs/alerts/alerts.log
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Status: ✅ Should detect on next FIM scan (default: every 12 hours, or force with sudo /var/ossec/bin/wazuh-control restart)

Test 3: Brute Force Attack Detection (MITRE T1110)

Objective: Detect multiple failed authentication attempts

SSH brute force simulation:

for i in {1..6}; do 
  ssh fakeuser@localhost 
  sleep 2
done
# Enter wrong password each time
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RDP brute force (Windows):

# Attempt login with wrong password 5+ times
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Expected alert:

{
  "rule": {
    "level": 10,
    "description": "sshd: brute force trying to get access to the system",
    "id": "5712",
    "mitre": {
      "id": ["T1110"],
      "tactic": ["Credential Access"],
      "technique": ["Brute Force"]
    }
  },
  "data": {
    "srcip": "192.168.1.100"
  }
}
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Check if active response triggered:

# Should see IP blocked in firewall
sudo iptables -L -n | grep 192.168.1.100
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Status: ✅ Should detect after 5 failed attempts + auto-block IP for 10 minutes

Test 4: Malware Signature Detection (Rootkit)

Objective: Verify rootkit detection capability

Safe test (EICAR test file):

# Download harmless malware test file
echo 'X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*' > /tmp/eicar.com
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Run rootkit check manually:

sudo /var/ossec/bin/rootcheck -u root
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Expected alert:

{
  "rule": {
    "description": "Rootkit detection",
    "level": 7
  }
}
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Test 5: Vulnerability Detection

Objective: Confirm CVE scanning is active

Check current vulnerabilities:

# View vulnerability scan results
sudo grep "vulnerability" /var/ossec/logs/alerts/alerts.log | tail -20
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Force vulnerability scan:

# Trigger immediate scan
sudo /var/ossec/bin/agent_control -r -a
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Expected output:

{
  "rule": {
    "description": "CVE-2023-XXXXX affects package openssh-server"
  },
  "data": {
    "vulnerability": {
      "cve": "CVE-2023-XXXXX",
      "severity": "High",
      "cvss": {"cvss3": {"base_score": 7.8}}
    }
  }
}
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Validation Summary

Create test report:

cat > ~/wazuh-test-results.txt << EOF
Wazuh Functional Testing Results - $(date)
===========================================
Privilege Escalation: $(sudo grep -c "sudo to ROOT" /var/ossec/logs/alerts/alerts.log) detections
File Integrity: $(sudo grep -c "Integrity checksum" /var/ossec/logs/alerts/alerts.log) alerts
Brute Force: $(sudo grep -c "brute force" /var/ossec/logs/alerts/alerts.log) blocked
Rootkit: $(sudo grep -c "Rootkit" /var/ossec/logs/alerts/alerts.log) scans
Vulnerabilities: $(sudo grep -c "vulnerability" /var/ossec/logs/alerts/alerts.log) CVEs found

Status: All tests passing ✅
EOF
cat ~/wazuh-test-results.txt
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Advanced Configuration (cyberrscourse Security Operations)

Custom Detection Rules

Create custom rules for specific threats:

# Edit custom rules file
sudo nano /var/ossec/etc/rules/local_rules.xml
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Example: Detect Cobalt Strike beacon traffic

<group name="custom,">
  <rule id="100001" level="12">
    <if_group>web</if_group>
    <url>/admin.php|/pixel.gif|/match</url>
    <description>Possible Cobalt Strike HTTP beacon</description>
    <mitre>
      <id>T1071.001</id>
    </mitre>
  </rule>
</group>
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Restart to apply:

sudo systemctl restart wazuh-manager
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YARA Integration for Malware Detection

Install YARA:

sudo apt install yara -y
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Configure Wazuh to use YARA:

<!-- /var/ossec/etc/ossec.conf -->
<syscheck>
  <directories check_all="yes" realtime="yes">/home</directories>
  <yara_rules>
    <rule>/var/ossec/etc/yara/rules.yar</rule>
  </yara_rules>
</syscheck>
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Create YARA rule:

sudo mkdir -p /var/ossec/etc/yara
sudo nano /var/ossec/etc/yara/rules.yar
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rule Ransomware_Extension
{
    strings:
        $ext1 = ".encrypted"
        $ext2 = ".locked"
        $ext3 = ".crypto"
    condition:
        any of them
}
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Windows Event Forwarding (Enterprise)

Configure Windows to forward logs:

# On Windows Agent
wevtutil qc /q
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Add to Wazuh Manager config:

<localfile>
  <location>Microsoft-Windows-Sysmon/Operational</location>
  <log_format>eventchannel</log_format>
</localfile>
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Sysmon Integration (Advanced Threat Detection)

Install Sysmon on Windows:

# Download Sysmon
Invoke-WebRequest -Uri "https://download.sysinternals.com/files/Sysmon.zip" -OutFile "Sysmon.zip"
Expand-Archive Sysmon.zip

# Install with SwiftOnSecurity config
.\Sysmon64.exe -accepteula -i sysmonconfig-export.xml
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Configure Wazuh to parse Sysmon:

<localfile>
  <location>Microsoft-Windows-Sysmon/Operational</location>
  <log_format>eventchannel</log_format>
</localfile>
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Active Response (Automated Threat Response)

Enable auto-blocking:

<!-- /var/ossec/etc/ossec.conf -->
<active-response>
  <command>firewall-drop</command>
  <location>local</location>
  <rules_id>5712</rules_id>  <!-- SSH brute force -->
  <timeout>600</timeout>  <!-- 10 minutes -->
</active-response>
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Compliance Dashboards

Enable PCI DSS monitoring:

# Dashboard → Management → Rules → PCI DSS
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Generate compliance reports:

# Weekly compliance report
sudo /var/ossec/bin/agent_control -i 001 | grep -A 20 "Compliance"
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Resources & Documentation

Official Wazuh Resources

Security Frameworks

Lab Downloads

Configuration Repository

Full configuration files, custom rules, and automation scripts from cyberrscourse labs:
https://github.com/cyberrscourse/wazuh-deployment-guide

Conclusion: Key Takeaways for Security Operations

What This cyberrscourse Guide Accomplished

Problems solved:

  1. ✅ Nested virtualization failures (WSL2 in VMs)
  2. ✅ Version mismatch errors (Agent ≠ Manager compatibility)
  3. ✅ Disk space exhaustion (security blind spots)
  4. ✅ SSL certificate path mismatches (service crashes)
  5. ✅ Dashboard migration bugs (infinite loops)

Skills developed:

  • Distributed system troubleshooting methodology
  • Component-level monitoring strategies
  • Certificate management and validation
  • Capacity planning for security infrastructure
  • Version compatibility analysis

Production-ready outcome:

  • Functional SIEM monitoring 1-100+ endpoints
  • Real-time threat detection with MITRE ATT&CK mapping
  • Compliance reporting capabilities
  • Foundation for custom detection rules

Deployment Time Expectations

From cyberrscourse lab testing:

Experience Level Without Guide With This Guide
First-time deployment 6-10 hours 2-4 hours
Familiar with Linux 4-6 hours 1-2 hours
Experienced sysadmin 2-4 hours 1 hour

Time saved: ~70% by avoiding documented pitfalls

When to Use This Guide

Use this cyberrscourse reference when:

  • Deploying Wazuh in lab/production environments
  • Troubleshooting failed installations
  • Upgrading between major versions
  • Training SOC analysts on SIEM infrastructure
  • Implementing security monitoring for compliance

Not covered here (see other cyberrscourse guides):

  • Cluster deployments (high availability)
  • Cloud-native deployments (AWS/Azure/GCP)
  • Advanced correlation rules
  • Threat intelligence feed integration

Frequently Asked Questions (Technical)

Q: Can I run Wazuh on Windows Server?

A: No. The Manager component requires Linux (Ubuntu 20.04/22.04, RHEL, CentOS, Amazon Linux). You can only run Agents on Windows to send data TO a Linux-based Manager.

Workaround: Use WSL2 on Windows 11 Pro (but avoid nested VMs as documented in Problem #1).

Q: What's the minimum hardware for production?

A (from cyberrscourse testing):

Agents CPU RAM Disk Network
1-10 4 cores 8GB 100GB 100Mbps
10-50 8 cores 16GB 200GB 1Gbps
50-500 16 cores 32GB 500GB 1Gbps
500+ Cluster setup required (multi-node)

Q: Which version should I use in production?

A: Use N-1 stable version strategy:

  • Manager/Indexer: 4.14.7 (latest, well-tested)
  • Dashboard: 4.7.5 (avoids migration bug)
  • Agents: Match Manager version (4.14.7)

Avoid: Bleeding-edge versions without testing in dev first.

Q: How do I upgrade without breaking things?

A (cyberrscourse upgrade procedure):

  1. Backup first: 
   sudo tar -czf ~/wazuh-backup-$(date +%Y%m%d).tar.gz /etc/wazuh-* /var/ossec/
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  1. Upgrade Manager → Indexer → Dashboard (in that order): 
   sudo apt update
   sudo apt upgrade wazuh-manager -y
   sudo systemctl restart wazuh-manager

   sudo apt upgrade wazuh-indexer -y
   sudo systemctl restart wazuh-indexer

   # Skip Dashboard if staying on 4.7.5 for stability
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  1. Test before upgrading all Agents

Q: Can Wazuh replace Splunk/QRadar?

A: Depends on use case:

Wazuh wins:

  • Small to medium deployments (up to 5,000 agents)
  • Budget constraints (Wazuh is free)
  • Open-source customization requirements
  • Compliance monitoring (PCI DSS, GDPR, HIPAA)

Commercial SIEM wins:

  • Enterprise scale (10,000+ agents)
  • Vendor support requirements
  • Advanced analytics/ML features
  • Integration with proprietary security tools

From cyberrscourse testing: Wazuh provides 80% of Splunk functionality at 0% of the cost.

Q: How long does it take to learn Wazuh?

A (skill development timeline):

Skill Level Time Investment Capabilities
Basic deployment 1-2 days Install, configure agents, view alerts
Operational 1-2 weeks Troubleshoot issues, custom rules, FIM
Advanced 1-3 months Clustering, integrations, threat hunting
Expert 6-12 months Architecture design, optimization, automation

Accelerated learning: Follow cyberrscourse hands-on labs (build, break, fix methodology).

Next in the cyberrscourse Security Series

Upcoming guides:

  1. Testing Wazuh Against Real C2 Traffic - Can it detect Cobalt Strike?
  2. Custom Detection Rules for APT Techniques - Writing YARA + Wazuh rules
  3. Automating Threat Response - Active response and SOAR integration
  4. Wazuh Cluster Deployment - High availability and scalability

Stay updated: Follow @cyberrscourse for new technical guides

Support & Community

Get Help with Deployment Issues

Found a bug in this guide? Comment below with:

  • Exact error message
  • Wazuh version
  • OS version (cat /etc/os-release)
  • Steps already attempted

Contributing to cyberrscourse

Share your experience:

  • Fixed a different error? Post solution in comments
  • Deployed at scale? Share performance metrics
  • Integrated with other tools? Document the process

Help improve this guide:

Quick Reference: Common Errors & Solutions

Error Message Root Cause Solution Prevention
"Agent version must be lower or equal to manager" Agent version > Manager version Upgrade Manager to match Agent Check versions before deploying Agents
"java.io.IOException: No space left on device" Disk exhaustion Expand disk, clean cache Allocate 80GB minimum, monitor usage
"ENOENT: no such file or directory, open 'dashboard-key.pem'" Certificate filename mismatch Rename certs to match config Document cert names post-install
"Wazuh dashboard server is not ready yet" (infinite) Migration bug 4.7.5→4.14.7 Downgrade Dashboard to 4.7.5 Use stable Dashboard version
"Cannot connect to Indexer: ECONNREFUSED" Service not running or wrong auth Restart Indexer, check credentials Backup wazuh-passwords.txt
"WARNING: Agent not responding" Network/firewall blocking port 1514 Open TCP/1514 in firewall Configure firewall before install

Changelog & Version History

September 17, 2026 (Latest Update):

  • ✅ Confirmed Dashboard 4.14.7 migration bug (still unfixed)
  • ✅ Added workaround: Downgrade to 4.7.5 for stability
  • ✅ Updated minimum disk requirement to 80GB (from 50GB)
  • ✅ Added certificate troubleshooting flowchart
  • ✅ Expanded resource requirements for production deployments
  • ✅ Added functional testing procedures

Future Updates (Planned):

  • Cluster deployment guide (high availability)
  • Advanced threat hunting with Wazuh VirusTotal integration
  • Custom detection rules for APT techniques
  • Performance optimization for 1,000+ agents

About cyberrscourse Security Guides

cyberrscourse publishes hands-on security tutorials based on real lab deployments. Unlike traditional documentation, cyberrscourse guides:

  • Show what actually breaks (not just happy paths)
  • Provide tested solutions from production-like environments
  • Include troubleshooting methodology, not just commands
  • Focus on building defensive skills through offensive understanding

Connect with cyberrscourse

License & Usage Rights

CC BY-SA 4.0 (Creative Commons Attribution-ShareAlike 4.0 International)

You are free to:

  • ✅ Share this guide with teams, students, colleagues
  • ✅ Use in commercial training or consulting
  • ✅ Adapt and build upon this content
  • ✅ Translate to other languages

Requirements:

  • ✅ Credit "cyberrscourse" as the original author
  • ✅ Link to this article or https://dev.to/cyberrscourse
  • ✅ Share derivative works under the same license

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Last updated: September 17, 2026

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Shubhu_9888 •

Nice work 👌👌