This video provides a guided walk-through covering each step of the Windows SSH wizard:

You can also refer to this documentation for full details:

Here is a direct link to the PDF as well:

Windows SSH Wizard in Nagios XI

Prerequisites

• Linux: root or sudo access
• Windows Server 2019/2022: local administrator
• Internet connectivity
• Zabbix server/proxy IP (e.g., 192.168.1.100)

Part 1: Install Zabbix Agent on Linux

1. Update system.

sudo dnf update -y

sudo dnf update -y

2. Add Zabbix repository.

Choose your distribution/version here: Zabbix Linux downloads.

sudo rpm -Uvh https://repo.zabbix.com/zabbix/7.0/rhel/9/x86_64/zabbix-release-7.0 1.el9.noarch.rpm 
sudo dnf clean all

sudo rpm -Uvh https://repo.zabbix.com/zabbix/7.0/rhel/9/x86_64/zabbix-release-7.0 1.el9.noarch.rpm 
sudo dnf clean all

3. Install agent.

sudo dnf install -y zabbix-agent2

sudo dnf install -y zabbix-agent2

4. Configure agent.
Edit /etc/zabbix/zabbix_agent2.conf and set:

Server=192.168.1.100 
ServerActive=192.168.1.100 
Hostname=LinuxServer01

Server=192.168.1.100 
ServerActive=192.168.1.100 
Hostname=LinuxServer01

5. Start and enable service.

sudo systemctl enable --now zabbix-agent2

sudo systemctl enable --now zabbix-agent2

6. Open firewall.

sudo firewall-cmd --add-port=10050/tcp --permanent 
sudo firewall-cmd --reload

sudo firewall-cmd --add-port=10050/tcp --permanent 
sudo firewall-cmd --reload

Part 2: Install Zabbix Agent on Windows

1. Download agent.

• Visit the Zabbix downloads page and get the latest Windows installer here: Zabbix Windows agents

2. Run installer.

• Double-click the downloaded .exe to launch the Wizard
• Click Next to continue

3. Accept License Agreement.

4. Choose installation folder.

5. Configure during setup.

• Server IP: 192.168.1.100
• Active checks: 192.168.1.100
• Hostname: WindowsServer01
• Enable the check box for Add agent location to the PATH
• Click Install, then Finish

6. Verify service.

sc query "Zabbix Agent 2"

sc query "Zabbix Agent 2"

7. Allow firewall.

• Open Windows Defender Firewall → Inbound Rules → New Rule → Port → TCP 10050 → Allow → All profiles → Name: Zabbix Agent 2

Verification & Troubleshooting

You’re all set! Your system is now ready to be monitored with Nagios XI. To learn more about the Zabbix Agent Wizard, take a look at this article: How to Use the Zabbix Agent Wizard in Nagios XI.

Prerequisites

Before you begin, make sure you have the following:

• A running instance of Nagios Log Server (2024R2)
• A Windows 10 system with administrative privileges
• Network connectivity between the Windows 10 machine and the Nagios Log Server

Step 1: Add a New Windows Log Source in Nagios Log Server

1. Log in to Nagios Log Server.
2. Click the green + Add Log Source button or navigate to Configure > + Add Log Source.
3. Click the + Windows button to begin setup for a Windows log source.

Step 2: Install NXLog Community Edition (CE)

1. On the Windows log source setup page, find the Getting Started section.

2. Click the link to download NXLog CE directly from your Nagios Log Server (not an external source).

3. Launch the installer and follow these steps:

• Accept the License Agreement.

• Choose the default or a custom installation path.
• Click Install, then click Finish once completed.

Step 3: Configure NXLog on Windows 10

1. In the Configuration Setup section of the Nagios Log Server, locate the configuration code block.
2. Click the Select All icon and copy the text.
3. On your Windows 10 machine:
   • Open Notepad as Administrator.
   • Navigate to the file: C:\Program Files\nxlog\conf\nxlog.conf or: C:\Program Files (x86)\nxlog\conf\nxlog.conf
   • In Notepad, switch file type to All Files to locate nxlog.conf.
   • Delete all contents (CTRL + A, then DELETE).
   • Paste the copied configuration block.
   • Click File > Save.

Step 4: Start NXLog Service

1. Open Command Prompt as Administrator.
2. Run the following command:

net start nxlog

net start nxlog

The NXLog service is now running and configured to start automatically on boot.

Step 5: Verify Logs in Nagios Log Server

1. Navigate to the Windows source page in Nagios Log Server.
2. In the Verify Incoming Logs section, enter the Windows machine’s IP address.
3. You can also go to the Dashboards section and run this query: host:<Windows 10 IP>
4. Confirm that log entries appear under All Events.

Troubleshooting Tips

• NXLog Service Fails to Start:
  • Ensure you have administrative privileges.
  • Verify the syntax of the nxlog.conf file.
• No Logs in Nagios Log Server:
  • Check the network connectivity between the Windows machine and Nagios Log Server.
  • Double-check the NXLog configuration.
• Firewall Issues:
  • Ensure firewalls on both Windows and Nagios Log Server allow traffic on required ports.

Conclusion

Conclusion

By following this guide, you have successfully configured Windows 10 to forward logs to Nagios Log Server 2024R2 using NXLog CE. This setup ensures you have real-time visibility into Windows system events.

For more resources and help:

• Nagios Support Forum
• Nagios Knowledgebase
• Nagios Library

Note: Windows 7 reached end-of-life on January 14, 2020, and is unsupported by Microsoft. Compatibility with modern software like Nagios Log Server 2024R2 or recent NXLog CE versions may be limited. Use this guide for legacy systems only, and consider upgrading to a supported OS (e.g., Windows 10/11) for production environments.

Prerequisites

Before starting, ensure you have the following:

• A running Nagios Log Server 2024R2 instance.
• Administrator privileges on your Windows 7 machine.
• A stable network connection between Windows 7 and Nagios Log Server.

Step 1: Add a Windows Log Source in Nagios Log Server

1. Log into Nagios Log Server:

• Access the web interface (e.g., http://<log-server-ip>).

2. Add a Windows Log Source:

• Option 1: On the Home page, click the green + Windows button in the “Add a log source” section (bottom left).

• Option 2: Navigate to Configure > + Add Log Source,

• then select Windows from the list.

3. This will guide you to the configuration page for setting up Windows logs.

Step 2: Install NXLog CE on Windows 7

1. On the Windows source page, locate the Getting Started section.

2. Click the link to download the NXLog Community Edition installer from your Nagios Log Server instance.

3. Run the downloaded installer.

4. Follow the installation steps:

• Accept the license agreement.
• Click Install.

• Wait for the installation to complete.
• Click Finish to close the installer.

Step 3: Configure NXLog CE

1. On the Windows source page of Nagios Log Server, locate the Configuration Setup section.
2. Copy the provided configuration block by clicking the Select All icon and copying the highlighted text.
3. Open Notepad on your Windows 7 machine.
4. Navigate to C:\Program Files (x86)\nxlog\conf\nxlog.conf.
   • Select All Files (.) in the file type dropdown to locate the file.
5. Open the nxlog.conf file.
6. Press CTRL + A to select all content and delete it.
7. Paste the copied configuration from Nagios Log Server.
8. Save the file by selecting File > Save.

Step 4: Start NXLog CE Service

1. Start the Service.

• Open Command Prompt as Administrator (Start > type cmd > right-click > Run as administrator).
• Run:

net start nxlog

net start nxlog

2. Set Automatic Startup:

• The installer typically configures this, but verify:
  • Press Win+R, type services.msc, and press Enter.
  • Find NXLog, right-click > Properties, ensure Startup type is Automatic, and click OK.

Step 5: Verify Incoming Logs

1. Option 1: Verify on Windows Source Page:

• On the Nagios Log Server Windows source page, scroll to Verify Incoming Logs.
• Enter the Windows machine’s IP (e.g., 192.168.107.55) and click Verify.
• Expected result: “Verified. There are X logs for the host <IP>.”

2. Option 2: Check Dashboards:

• Navigate to Dashboards in Nagios Log Server.
• Query: host:<Windows-IP> (e.g., host:192.168.107.55).
• Confirm logs appear in the All Events panel.

Troubleshooting Tips

NXLog Service Fails to Start

• Ensure you have administrative privileges.
• Verify the syntax of the nxlog.conf file.

No Logs in Nagios Log Server

• Check the network connectivity between the Windows machine and Nagios Log Server.
• Double-check the NXLog configuration.

Firewall Issues

• Ensure firewalls on both Windows and Nagios Log Server allow traffic on required ports.

Conclusion

By following these steps, you have successfully configured a Windows 7 machine to send logs to Nagios Log Server 2024R2 using NXLog CE. This setup provides valuable insights for effective monitoring and troubleshooting of your IT infrastructure.

For additional support, visit the Nagios Support Forum or check the Nagios Knowledgebase.

SNMP provides a lightweight, agentless approach to remote system monitoring, allowing you to track performance metrics efficiently without adding extra overhead. Whether you’re managing a single system or an entire network, this setup ensures real-time visibility into your Windows 7 environment. Let’s dive in and get your monitoring up and running!

Target Audience

This guide is designed for Nagios XI administrators responsible for network and system monitoring.

Prerequisites

• Windows 7 machine with administrative access
• Nagios XI instance with admin privileges
• Basic knowledge of Windows and Nagios configurations

Step 1: Install SNMP on Windows 7

1. Open Control Panel > Programs and Features.
2. Click Turn Windows features on or off.
3. Locate and install SNMP Services.
4. Open Services (type services.msc in the Run dialog).
5. Find SNMP Service, right-click, and select Properties.
6. Under the Security tab:
   • Add an allowed Community String (e.g., public for read-only access).
   • Configure Accepted Hosts by entering the Nagios XI server IP.
7. Restart SNMP Service to apply changes.

Step 2: Verify SNMP Configuration

To confirm SNMP is working, run the following command from Nagios XI:

snmpwalk -v 2c -c public <Windows7_IP>

snmpwalk -v 2c -c public <Windows7_IP>

If correctly configured, this should return system information.

Step 3: Configure Windows Firewall

1. Open Windows Defender Firewall with Advanced Security.

2. Select Inbound Rules and click New Rule..

3. Choose Port and click Next.

4. Select UDP and enter 161-162 in the Specific local ports textbox.

5. Click Next, name the rule, and Finish.

Step 4: Set Up SNMP Monitoring in Nagios XI

1. Log into Nagios XI.

2. Go to Configuration Wizards.

3. Search for SNMP and select Windows SNMP.

4. Enter:

• Windows 7 IP Address
• SNMP Community String (matches Windows setting)
• Keep SNMP version and port as default

5. Click Next and select services to monitor:

• CPU Usage
• Memory Utilization
• Disk Space
• Network Traffic

6. Click Finish and confirm the host is added.

Step 5: Verify Monitoring in Nagios XI

• Navigate to Host/Service Details in Nagios XI.
• Confirm the Windows 7 machine and selected services are active.
• If issues arise, double-check SNMP settings and firewall rules.

Troubleshooting

• Issue: Unable to connect due to incorrect community name.
  • Solution: Ensure the correct community’s name is entered in both Windows SNMP settings and Nagios XI.
• Issue: SNMP service not starting.
  • Solution: Set SNMP Service Startup Type to Automatic.

Video Guide

For a step-by-step tutorial, watch this video:

Conclusion

By following this guide, you have successfully set up SNMP monitoring for Windows 7 in Nagios XI. This ensures effective system performance tracking, allowing administrators to proactively address issues.

For more help, visit the Nagios XI Knowledge Base or Nagios Support Forums.

Active vs. Passive Monitoring

NCPA supports two monitoring methods:

• Active Monitoring: Nagios actively checks system metrics on a schedule.
• Passive Monitoring: NCPA submits check results to Nagios when triggered.

Recommendation: Active monitoring is preferred for most cases, as it allows Nagios to control check scheduling.

Prerequisites

Before starting the installation, ensure the following:

• A system running Windows 7
• Administrator privileges
• A stable internet connection

Verify your Windows version by running the following command in Command Prompt:

systeminfo | findstr /B /C:"OS Name" /C:"OS Version"

systeminfo | findstr /B /C:"OS Name" /C:"OS Version"

Example Output:

OS Name:      Microsoft Windows 7 Professional
OS Version:   6.1.7601 Service Pack 1 Build 7601

OS Name:      Microsoft Windows 7 Professional
OS Version:   6.1.7601 Service Pack 1 Build 7601

Step 1: Download the NCPA Package

To download the latest NCPA package for Windows, visit the Nagios NCPA Downloads Page. Download the appropriate installer for Windows 7.

Step 2: Install NCPA (Graphical Method)

1. Locate the downloaded installer.
2. Double-click to launch the installation wizard.
3. Follow these steps:
   • Click Next on the Welcome screen.
   • Accept the license agreement.
   • Configure passive checks (optional) by setting an API token for authentication.
   • Keep the default Bind IP (0.0.0.0) and port (5693).
   • Click Install and wait for the process to complete.
   • Click Finish once installation is complete.

Step 2 (Alternative): Silent Installation

For deploying NCPA on multiple machines, use the silent installation method:

Command Syntax

ncpa-<version>.exe /S /TOKEN='mytoken' /<variable>='<value>' /D=<base directory>

ncpa-<version>.exe /S /TOKEN='mytoken' /<variable>='<value>' /D=<base directory>

Key Configuration Variables:

• TOKEN (Required): API token for access.
• IP: Address to bind to (default: 0.0.0.0).
• PORT: Port to bind to (default: 5693).
• NRDPURL: URL for passive check submissions.
• NRDPTOKEN: Authentication token for NRDP.
• NRDPHOSTNAME: Hostname for NRDP passive checks.

Example Command:

ncpa-2.1.6.exe /S /TOKEN='Str0ngT0k3n' /NRDPURL='http://10.25.5.12/nrdp/' /NRDPTOKEN='NRDP_T0k3n' /NRDPHOSTNAME='WIN7-PC'

ncpa-2.1.6.exe /S /TOKEN='Str0ngT0k3n' /NRDPURL='http://10.25.5.12/nrdp/' /NRDPTOKEN='NRDP_T0k3n' /NRDPHOSTNAME='WIN7-PC'

Step 3: Configure NCPA

After installation, edit the NCPA configuration file:

1. Navigate to the installation directory (default: C:\Program Files (x86)\Nagios\NCPA).
2. Open ncpa.cfg in a text editor.
3. Set the API token:

community_string = mytoken

community_string = mytoken

4. Save and close the file.

Step 4: Restart the NCPA Service

Apply changes by restarting the NCPA services:

net stop ncpa_listener
net start ncpa_listener
net stop ncpa_passive
net start ncpa_passive

net stop ncpa_listener
net start ncpa_listener
net stop ncpa_passive
net start ncpa_passive

Step 5: Configure Firewall (if enabled)

If Windows Firewall is enabled, allow traffic on port 5693:

1. Open Command Prompt as Administrator.
2. Run the following command:

New-NetFirewallRule -DisplayName "Allow NCPA" -Direction Inbound -Protocol TCP -LocalPort 5693 -Action Allow

New-NetFirewallRule -DisplayName "Allow NCPA" -Direction Inbound -Protocol TCP -LocalPort 5693 -Action Allow

Step 6: Test NCPA Installation

1. Open the Services window by typing services.msc in the Start menu.
2. Scroll down and locate Nagios Cross-Platform Agent.
3. Ensure the service is running.
4. Open a web browser and navigate to: https://<NCPA_IP_Address>:5693/
5. If prompted with a security warning, click Advanced and proceed.
6. Log in using the API token.

Configuring Nagios XI

To monitor the Windows system using Nagios XI and the NCPA agent:

1. Navigate to the Nagios XI dashboard.
2. Open the NCPA wizard by selecting Configure > Run a Monitoring Wizard > NCPA.
3. Enter the required details, including the IP address of the Windows server and the API token.
4. Complete the wizard setup and apply configuration changes.

Verifying Monitoring Setup

After completing the wizard, Nagios XI should display the monitored host and its services:

1. Navigate to the Service Status page to confirm that the system is being monitored.

Troubleshooting Tips

• Issue: NCPA agent not starting.
  • Solution: Verify that the token and port configurations are correct.
• Issue: Passive checks not received by Nagios.
  • Solution: Ensure the NRDP URL and token match the Nagios server settings.
• Issue: Firewall blocking NCPA communication.
  • Solution: Allow traffic on port 5693.

Conclusion

By following this guide, you have successfully installed and configured the Nagios Cross-Platform Agent on your Windows 7 system. For additional support, refer to the Nagios Support Forum or the Nagios Knowledge Base.

Prerequisite

• Access to a Windows 10 machine
• An instance of Nagios XI with administrative privileges

Step 1: Install SNMP on Windows 10

1. Open Settings on your Windows machine.

2. Navigate to Optional Features.

3. Click “+” icon and search for “snmp”, then select both check boxes.

4. Click Add and wait for the installation to complete.

5. Verify the installation by searching for SNMP under the Added Features section.

Step 2: Configure SNMP

1. Open Services by typing it into the Windows search bar.

2. Scroll down to SNMP Service, right-click, and select Properties.

3. Under the General tab, set the Startup Type to Automatic.

4. Navigate to the Agent tab and select the services you want SNMP to monitor.

5. Go to the Security tab:

6.  Choose whether to accept SNMP packets from any host or specific IP addresses (e.g., your Nagios XI instance).

7. Click Apply to save your configuration.

Step 3: Configure Windows Firewall

1. Open Windows Defender Firewall with Advanced Security.

2. Select Inbound Rules and click New Rule

3. Choose Port and click Next.

4. Select UDP and enter 161-162 in the Specific local ports textbox.

5. Click Next through the remaining steps, give the rule a name, and click Finish.

Step 4: Set Up SNMP Monitoring in Nagios XI

1. Open Nagios XI in your browser.

2. Hover over the gear icon and select Configuration Wizards.

3. Search for SNMP.

4. Enter the following information:

5. Click Next.

6. Select the services and hardware information to monitor.

7.  Click Finish with Defaults or adjust monitoring settings as required.

8. Go back to the host and confirm that it has been added with your selected services being monitored.

Step 5: Verify Services

1. Navigate to the Host/Service Details in Nagios XI.

2. Confirm that the Windows 11 machine and its selected services are being monitored.

Conclusion

SNMP monitoring with Nagios XI provides real-time insights into Windows 10 performance, enabling proactive issue detection and resolution. With this setup, you can fine-tune alerts, expand monitoring across multiple systems, and leverage Nagios XI’s advanced features for deeper insights. By optimizing your monitoring strategy, you ensure system reliability, security, and efficiency.

For more information please visit the Nagios Support Forum or the Nagios Knowledge Base.

Active vs. Passive

NCPA can be used for both Active and Passive monitoring:

• Active Monitoring: Nagios initiates and schedules checks at regular interval.
• Passive Monitoring: NCPA submits check results to Nagios without requiring direct polling.

The NCPA installer may prompt you for settings for active and passive. Active is the most common method
used. If you are not using passive monitoring, then you do not need to configure those settings.

Prerequisites

Before beginning the installation, ensure the following requirements are met:

• A system running Windows 10
• Administrator privileges
• A stable internet connection
• A working Nagios XI instance to receive and process monitoring data

Step 1: Download the Nagios Cross-Platform Agent (NCPA) Package

To download the latest NCPA package for Windows, visit:

Nagios NCPA Downloads Page

Step 2: Install the NCPA Package

There are two methods for installing the NCPA package:

• Graphical Installation: A user-friendly, step-by-step installation wizard.
• Silent Installation: An unattended installation using command-line options, ideal for automation and scripting.

Graphical Installation

1. Navigate to the folder where the NCPA installer was downloaded.
2. Double-click the installer file to start the installation process.
3. When the welcome screen appears, Click Next on the welcome screen.

An example of the welcome page of NCPA installer.

4. Read and accept the license agreement by clicking I Agree.

5. The configuration screen for API configuration will appear.
   • Token: The only required setting to configure; used by your Nagios server to authenticate with NCPA.
   • Bind IP: 0.0.0.0 (default) – Listens on all IPv4 addresses on the Windows machine.
   • Port: 5693 (default) – Used for communication with the NCPA agent.

6. Click Next and proceed to the configuration screen for Passive checks.
   • To enable passive checks, check the Send passive checks over NRDP box.
   • Provide the following NRDP settings:
     • URL: This is the URL on your Nagios Host that accepts passive check results to be submitted
     • NRDP Token: This is the token you will be using when passing NCPA passive checks to Nagios for NRDP to accept the check. This is separate from the token that was provided for active checks.
     • Hostname: The name of the host that the passive checks will be associated with in Nagios.

• In Nagios XI, the URL and NRDP Token are configured under: Admin > Check Transfers > Inbound Transfers.

7. Click Next and proceed and continue with Passive checks.
   • The Passive Service Checks screen will appear, displaying the default checks that will be executed and sent to your Nagios server.
   • You can modify these checks if needed. The Passive Service Checks screen will appear, displaying the default checks that will be executed and sent to your Nagios server. You can modify these checks if needed.

8. Click Next and proceed and You will be presented with the install location.
   • Change the destination folder if required.

9. Click the Install button to install NCPA and Once the installation is complete, click Finish.

Silent Installation

The installer also supports a silent install, which allows system administrators to easily manage their network
workstations without disrupting the workflow of the office. The following arguments currently supported.

• /S: Initiates a silent installation.
• /D: (Optional) Installation directory; must be the last argument and an absolute path (no quotes).
• /TOKEN: The token that will be used to access the agent’s API and web interface
• /IP: IP address to bind to (0.0.0.0 for all IPv4, :: for IPv6).
• /PORT: Port to bind to (default: 5693).
• /NRDPURL: Nagios server URL for submitting passive check results.
• /NRDPTOKEN: Authentication token for NRDP (separate from active check token).
• /NRDPHOSTNAME: Hostname associated with passive checks in Nagios.

Here is an example command:

ncpa-2.1.6.exe /S /TOKEN='Str0ngT0k3n' /NRDPURL='http://10.25.5.12/nrdp/'
/NRDPTOKEN='NRDP_T0k3n' /NRDPHOSTNAME='S1601'

Step 3: Configure Firewall (if enabled)

A firewall rule needs to be created on your Windows machine to allow incoming traffic to NCPA on TCP Port
5693

To change the firewall settings, select Start and type firewall in the search dialog box and open Windows
Firewall with Advanced Security.

Then click Inbound Rules in the left-hand panel.

In the right panel, click New Rule.

Afterwards Select Port and click Next.

Then Select TCP and select Specified local ports and type 5693 in the field. Afterwards, click Next.

Afterwards, Select Allow the connection and click Next.

Make any changes to where the rule should apply and click Next.

Give the rule a Name and click Finish to create the rule.

Step 4: Test NCPA

To ensure that the installation was successful and NCPA is now listening, try accessing the web interface of
the agent. In order to do this you will need to know:

• The IP Address of the machine you installed NCPA on
• The token / community_string you configured NCPA to use

Open a web browser and connect to the NCPA web interface using the following URL:

https://<NCPA IP Address>:5693/

You’ll see a security warning—this is normal. NCPA uses self-signed certificates to encrypt communication. Your browser flags it because it doesn’t recognize the certificate. Click Advanced and Add Exception (or proceed to xxx) to continue to the NCPA page.

More information on certificates is explained in the Understanding Certificate Warnings KB article.

You will then be shown the NCPA login page.

Type the token in the field and then click the Log In button.

Once you log in you will be placed on the Dashboard page with a summary of the NCPA version and machine it is running on.

Now that NCPA is ready to be monitored by Nagios, proceed to the Configuring Nagios section.

Configuring Nagios XI

To monitor your Windows system with Nagios XI and the NCPA agent:

1. Go to the Nagios XI dashboard.
2. Open the NCPA Wizard: Configure > Run a Monitoring Wizard > NCPA.
3. Enter the Windows server’s IP address and API token.
4. Complete the wizard and apply the configuration changes.

Verify Monitoring Setup

After completing the wizard, Nagios XI should display the monitored host and its services:

1. Navigate to the Service Status page to confirm that the system is being monitored, and Nagios XI is receiving data.

Troubleshooting Tips

• Issue: NCPA agent not starting.
  • Solution: Verify that the token and port configurations are correct.
• Issue: Passive checks not received by Nagios.
  • Solution: Ensure the NRDP URL and token match the Nagios server settings.
• Issue: Firewall blocking NCPA communication.
  • Solution: Allow traffic on port 5693.

Conclusion

Congratulations! You’ve successfully installed and configured the Nagios Cross Platform Agent on Windows. For further assistance, visit the Nagios Support Forum or the Nagios Knowledge Base.

This document is intended for use by Nagios XI Administrators who are interested in monitoring Windows machines using NSClient++.

Monitoring Windows Using NSClient++ With Nagios XI – 2024 & 2026

Monitoring Windows Using NSCleint++ with XI 2026

Monitoring Windows Using NSClient++ With Nagios XI – v5 (Legacy)

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