Keeping your organizations IT operations moving with little interruption is the ultimate goal of the IT department and the responsibility of the IT manager. Here I am going to review an application that I found a few years back which helps ensure that my environment stays working.

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The application is IP Sentry by RGE software. IPSentry monitors computer systems and will send an alert to notify the necessary parties that one of the monitored systems is unavailable or not working as desired. I have found that it works quite better to know when a server or service is unavailable before others in the company call or stop by to alert you.
Note: Alerts are sent via email. Additional steps (covered later in this post) will be required to ensure even your email server can be monitored.
IP sentry can watch computer systems for the following events:
- Availability
- Service Availability
- Room temperature (with the use of external temp probes)
Once the event is chosen, the alert method will need to be configured. Alerts can be of the following types:
- Audible – if the server running IP Sentry has speakers, an sound can be played when a condition triggers the alert.
- Visual – IP Sentry can have an external light source hooked up to it, such as a siren light, to alert visually.
- Email – Alerts can be sent via email or SMS message to specified users when a condition is triggered
These alerts can also be triggered on recovery. As an example of how the application works, suppose the application is set to watch a server for availability (is the server up or not) and another alert is checking the status of a service on that same server. The app will check the status of the condition at intervals you specify, for example every 10 minutes.
How does the application work?
IP Sentry can ping a server to see if it is available. If the ping is not successful, the alert will be sent. As in the example above, if the server comes back online, another status alert will be sent to recipients to let them know the server is back online.
When working with services, IP Sentry can restart a service when it is found to be unavailable as the alert is being sent.
The recovery alert has been quite useful in situations where you need to let a group of people know that a service, like the Exchange Information Store, is back up and running. Configuring an alert that fires when this service is recovered, will send the alert out to let them know the service is back online.
The initial interface for IP Sentry is shown below in figure 1.
Figure 1

Initial interface of application
When minized or exited, the application will close to the system tray and quietly watch for items that require notification. To edit or add devices select the action menu and then the Edit devices option. This is shown in figure 2.
Figure 2

An entry for a monitored device, name cleared to protect the innocent (servers)
Once devices have been added, they will be listed here. Each device begins with its own entry, if you create a device and set it to depend on another device, it will appear as a sub-item for the parent. This is helpful when you are checking applications. For example, a device to check SQL Server could be dependent on another device to check the server’s availability. If the server is down, the database doesn’t need to be checked.
In the edit/add devices window, select Action and choose add new device to display a screen allowing you to define the device. Double clicking an existing device will show the same screen with information populated for the selected device. The add/edit details screen is shown below in figure 3.
Figure 3

Setting up monitoring
Populating the device name, description, IP address and monitor type is configured on the general tab shown above. When choosing a type of monitor, the dropdown list shows all available types, if add-ons are used, these will appear here as well. Once these items are configured click alerts to specify the notification type used.
Note: for this post I am only showing e-mail alerts as they are the most common type I have used. Pager/Cell alerts are very similar.
On the screen shown in figure 4 you will specify the mail server settings, sender information (used to login if required by your mail server) and recipient information.
Figure 4

Configure email alerts for monitored device
When all of the options necessary are configured, click the test alert button to ensure the alert can be sent out. When you are all configured click OK to add the device. Clicking OK on the list of devices will return you to the monitoring screen. To test all the items entered, press control N, which will scan devices now.
All in all
This application does what it promises, and works to alert you when systems meet or do not meet specified conditions.
Microsoft produces applications that will manage or assist with server systems and keep them running at a high level, getting IT management the information they need to ensure the proper operation of the organization. The products they market work very well and if the budget and other resources permit, they arent a bad choice, but for smaller shops or tighter budgets, the lower cost of licensing at approximately $500/site IP Sentry might be the way to get the alerts your organization needs.
Would something like this help you manage your environment?