# Getting Started with IIS Server Monitoring

## Overview

Internet Information Services (IIS) is a flexible, secure and extensible web server from Microsoft that helps you host anything on the web. Since it is capable of handling most demanding tasks, from media streaming to web applications, monitoring its performance and response time becomes vital.

[IIS web server performance monitoring](https://www.manageengine.com/products/applications_manager/iis-monitoring.html) capabilities from Applications Manager helps you to proactively monitor your IIS servers by providing complete visibility into the performance of your websites and web application pools that are running within. It keeps tracks of various key web server metrics such as response time, connection statistics, data and file transaction rate, along with the list of anonymous users that are currently using the website at regular intervals.

In this help document, you will learn how to get started with IIS web server performance monitoring using Applications Manager's IIS traffic monitor.

## Creating a new IIS server monitor

**Prerequisites for monitoring IIS server metrics:** [Click here](https://www.manageengine.com/products/applications_manager/help/prerequisites-for-applications-manager.html#iis)

**Using the REST API to add a new IIS server monitor:** [Click here](https://www.manageengine.com/products/applications_manager/help/web-server-services-api.html#iis)

To create an IIS traffic monitor, follow the steps given below:

1. Click on **New Monitor** link. Choose **IIS Server**.
2. Enter the **Display Name** of the monitor.
3. Enter the **IP Address** or **hostname** of the host in which the Monitor is running.
4. Provide the **port** number in which the monitor is running.
5. Choose **SSL** option, if SSL is enabled in IIS Server.
6. Choose the preferred **Mode of Monitoring** — either **WinRM** or **WMI**— to retrieve details about websites and application pools.

   **Note:** [WinRM mode](https://www.manageengine.com/products/applications_manager/help/winrm-prerequisites.html) is only supported in Applications Manager versions **16820 and above**.

7. If WinRM mode is being utilized, choose the **WinRM protocol** to be used. By default, **HTTPS** operates on port **5986**, and **HTTP** operates on port **5985**.
8. To utilize a custom WinRM port, select the **Use custom WinRM port** option and enter the desired port number in the **Custom WinRM Port** textbox.
9. Provide IIS Server credential if required. Under **Credential Details**, if you opt to use the '**Use below Credential**' option, specify the IIS Server **username** and **password** details for this monitor. if you opt to fetch the details from the preconfigured credential details in Credentials Manager, choose the '**Select from Credential list**' option.
10. Select **View Additional Settings** to access the **Do not resolve DNS name** and **Response Header check** option.
11. Enable the **Do not resolve DNS name** checkbox if you have multiple system IP addresses configured with single DNS name.
12. Enable **Response Header Check** to check whether the IIS keyword is present in the response header. By default, it is disabled.
13. Enable **Re-try URL check during data collection** to retry basic URL check during data collection if it fails. This option is disabled by default.
14. Enable **Re-try basic WMI check during data collection** to retry the basic WMI connectivity check during data collection if it fails intermittently. By default, Applications Manager retries the check once after 5 seconds when this option is selected.
15. Enable **Response Code Check** to validate the response code from the URL response. By default, this option is disabled. When disabled, the monitor will not validate the response code if any response header is received. When enabled, only response codes greater than 0 and less than 400 will be considered valid.
16. Enter the [polling interval](https://www.manageengine.com/products/applications_manager/help/glossary-applications-manager.html#polling-interval) time in minutes.
17. If you are adding a new monitor from an Central Server, [select a Probe Server.](https://www.manageengine.com/products/applications_manager/help/enterprise-managed-server.html)
18. Choose the **Monitor Group** from the combo box with which you want to associate IIS Monitor (optional). You can choose multiple groups to associate your monitor.
19. Click **Add Monitor(s)**. This discovers the IIS Server from the network and starts monitoring them.

**Note:** To collect data for **Website Statistics** and **Application Pools**, the host where the IIS Server is running should be monitored in WMI mode. (Applicable only for Applications Manager versions 15110 and below)

## Monitored Parameters

Go to the **Monitors Category** View by clicking the **Monitors** tab. Click on **IIS Server** under the **Web Server / Services** category. Displayed is the IIS Server monitor bulk configuration view distributed into three tabs:

- **Availability** tab displays the Availability history for the past 24 hours or 30 days.
- **Performance** tab displays the Health Status and events for the past 24 hours or 30 days.
- **List view** tab enables you to perform [bulk admin configurations](https://www.manageengine.com/products/applications_manager/help/bulk-config.html).

**Note:** IIS Server monitoring is supported in Linux setup (Applicable only for Applications Manager versions 15120 and above), where you can monitor IIS URL Response time. However, IIS Websites statistics & Application Pool details are not available. [Refer here](https://www.manageengine.com/products/applications_manager/help/windows-vs-linux.html) to know more.

Applications Manager's IIS traffic monitor provide complete visibility into your IIS web server environments altogether in a single window based on the following metrics:

- [Overview](https://www.manageengine.com/manageengine/products/applications_manager/help/iis-server-monitoring.html#overview)
- [Performance](https://www.manageengine.com/manageengine/products/applications_manager/help/iis-server-monitoring.html#performance)

### Overview

| Parameter | Description |
|---|---|
| **RESPONSE TIME** |  |
| Response Time | Amount of time taken to connect to the server and provide response (in ms). |

### Performance

| Parameter | Description |
|---|---|
| **Website Statistics** |  |
| Website Name | Name of the website hosted by the IIS server. |
| Current Connections | Number of connections that are currently established with the IIS server. |
| Maximum Connections | Maximum number of connections that have been established with the IIS server. |
| Bytes Sent/sec | Amount of bytes sent from the website per second. |
| Bytes Received/sec | Amount of bytes received by the website per second. |
| Bytes Transferred/sec | Amount of bytes transferred from the website per second. |
| Files Sent/sec | Number of files sent from the website per second. |
| Files Received/sec | Number of files received by the website per second. |
| Files Transferred/sec | Number of files transferred from the website per second. |
| Current Anonymous Users | Number of anonymous users that are currently connected to the website. |
| Anonymous Users/sec | Number of anonymous users that are connected to the website per second. |
| Current Non-Anonymous Users | Number of non-anonymous users that are currently connected to the website. |
| Non-Anonymous Users/sec | Number of non-anonymous users that are connected to the website per second. |
| **Application Pools** |  |
| Application Pool Name | Name of the application pool. |
| CPU Usage | Amount of CPU utilized by the application pool (in percentage). |
| Memory Usage | Amount of memory utilized by the application pool (in percentage). |
| No of Worker Process | The number of worker processes (different programs) assigned to a pool. |
| Queue Length | Length of the HTTP.sys request queue of an application pool. |

In addition to the above metrics, following are the list of graphs that are shown in this tab:

- **Top Websites by Current Connections** - Shows a graphical representation of the websites that have the highest number of current connections established.
- **Top Websites by Bytes transferred** - Shows a graphical representation of the websites that have the highest number of bytes transferred per second.
- **Top Websites by Files transferred** - Shows a graphical representation of the websites that have the highest number of files transferred per second.
- **Top Websites by Anonymous users** - Shows a graphical representation of the websites that have the highest number of anonymous users connected per second.
- **Top Websites by Non-Anonymous users** - Shows a graphical representation of the websites that have the highest number of non-anonymous users connected per second.

**Note:** Starting from version **17.96.00**, actions are available for Websites and Application Pools. Websites support Start, Stop, and Restart actions, while Application Pools support Start, Stop, and Recycle actions.