How to use SNMP to monitor your servers


  • PRTG uses
    SNMP to monitor servers

  • Three PRTG
    sensors for servers

  • Automated
    alarm included

  • Tips for
    configuring SNMP Server

  • Tips for
    installing SNMP Server


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Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.






3 SNMP sensors for getting started


SNMP Traffic Sensor

The SNMP Traffic Sensor shows you the amount of data that runs through your network or a specific network device. You’ll therefore be able to immediately see if a server is heavily strained or overloaded.



SNMP Hardware Status Sensor

This sensor comes in handy for determining whether one of your server’s hardware components is running or not. You can also create special sensors that monitor components such as CPU, memory, or hard disks separately.


SNMP Custom Sensor

The SNMP Custom Sensor is customizable. In search of a way to monitor your virtual servers, mail servers, or file servers? PRTG comes with preconfigured sensors for each and every one.

 i What is a sensor?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)



Why SNMP-compatible servers
are a good idea for your IT infrastructure

The standard

SNMP (Simple Network Management Protocol) has been the standard protocol for network management for many years now. Reliable and robust, this protocol can be used to manage and monitor network devices such as servers, computers, routers, and switches. Pretty much every device – including those from the biggest manufacturers – supports SNMP. For more information, visit our page on SNMP. PRTG comes with preconfigured monitoring sensors for the servers of all the biggest manufacturers.



System administrators are often responsible for managing extremely complex networks made up of devices from many different manufacturers. These networks also use a number of different servers, including mail servers, database servers, and more. When monitoring, it therefore makes sense to focus on one central protocol. With PRTG, you can also use other protocols for your monitoring such as WMI for Windows servers, NetFlow, and packet sniffing. 



PRTG is a centralized Windows monitoring tool. It comes with a built-in dashboard that lets you keep a constant eye on the status of your servers as well as your entire network. If something goes wrong, you’ll automatically receive an alert – before the problem gets out of hand and your coworkers or customers begin to notice. PRTG lets you take action at once. You can also try or use our software free of charge. The free version of PRTG comes with 100 sensors and all the software’s features. If this is all you need, then you can take advantage of network monitoring without having to spend a penny.


Monitor your servers via SNMP
– even while on the go

PRTG can be started within minutes and it's compatible with many mobile devices.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.


PRTG monitors these vendors and applications, and more, in one view!



Configuring SNMP on your Windows servers: How it works

No two servers or Windows systems are operated in the same way. Nevertheless, we’d like to
provide you with some simple instructions for configuring SNMP. For more detailed instructions
(including screenshots), please see our blog article, in which we go over the various versions of
Windows and SNMP.


Step 1:

Determine whether your
server is compatible with SNMP

In general, Windows servers are compatible with SNMP. For other servers or devices, have a look in their manuals to find out if you can monitor them using SNMP. Product datasheets and manufacturer websites are also a good bet for finding information on whether a server is SNMP-compatible – and how to configure it.

Step 2:

Enable SNMP
in your settings

Open “Programs and Features” in your Windows settings. Here you’ll find the SNMP function. Click the box to enable SNMP. For some Windows servers, the SNMP service must be installed anew.

Step 3:

Check the
other settings

In the “Agent” category, check to make sure all the SNMP services are available. In “Security,” check the password, encryption, and port numbers. You can then create a sensor in PRTG.


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Free Download

Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.



PRTG simplifies your day

Our monitoring software works for you and promptly notifies you of potential issues.
It frees you to concentrate on your day-to-day tasks with peace of mind.


PRTG saves time

With PRTG, you get one central monitoring tool for your servers and entire network. Enjoy a quick overview of your whole infrastructure via our dashboard and app.

PRTG saves worry

Customizing PRTG is a breeze. Getting started or switching from another network monitoring tool is easy thanks to the auto-discovery and pre-configured device templates.

PRTG saves money

80% of our customers report substantial or even exceptional cost savings in the area of network monitoring. The experience shows that the costs for licenses have paid for themselves within a matter of weeks.





Software for SNMP server monitoring:
6 advantages of PRTG


Quick troubleshooting

Centralized monitoring

Many companies make do with whatever monitoring they can muster. They use a variety of small tools – usually free tools or open-source software – which can take a great deal of time and effort to set up and configure. With PRTG, you get one centralized tool that monitors your network devices, data packets, applications, and much more.

Identify shortages

Easy-to-read dashboard

With PRTG, all your monitoring data is neatly displayed on one central dashboard. It only takes a quick glance to see if everything is OK. You can also consult the dashboard from your smartphone or tablet. As a result, you’ll enjoy peace of mind and can confidently go about your other tasks. PRTG runs continually in the background, 24 hours per day, 7 days a week.

Promptly diagnose capacity

Automatic alarm

PRTG comes with an automated notification system. This alarm is included free of charge. It notifies you immediately in the event that a sensor picks up on a server error via SNMP. You get to choose the servers and devices that trigger alerts, as well as the means by which these alerts are sent (email, SMS, push notification, etc.).

Reduce costs

Improved IT security

PRTG monitors your servers, firewalls, routers, and ports in real time to root out unusual activity. It is therefore a vital part of your security structure. Open ports, in particular, can serve as loopholes for viruses and attacks.

Increase morale

Get started for free

In search of some freeware to get a feel for monitoring with SNMP? Try the full version of PRTG for 30 days for free. After the trial period, you can continue to use 100 sensors as well as all the software’s major features, including the reporting function and the notification system. You can therefore opt for fewer SNMP sensors and continue using PRTG for free. 

Increase morale

Custom licenses

At Paessler AG, we work hard to provide you with exactly the right software for your needs. We offer several custom licenses with sensor packages that meet the requirements of networks of all sizes. Tip: you’ll need about 10 sensors for every device you wish to monitor. Discover our selection of licenses here. Need more sensors down the line? No problem, you can upgrade whenever you like.




3 resources for SNMP-related problems

SNMP manuals

You’ll find the answers to numerous questions in our knowledge base – including many on SNMP. Here are 3 highlights: SNMP troubleshooting, how to install the SNMP service in Windows, and the customized monitoring of devices via SNMP. Can't find your question? Send us a message, we’ll be happy to respond!


SNMP tester

Having trouble querying data or communicating between PRTG and a specific device? Use our free SNMP tester to quickly get to the root of the problem. It sends simple SNMP queries at the protocol level and therefore helps with debugging.


SNMP videos

Wondering how to set up professional SNMP monitoring? Our videos provide step-by-step instructions on how to proceed. Simply choose “SNMP” in the menu and select the topic of your choice.


PRTG The Swiss Army knife

PRTG: The Swiss Army knife for sysadmins

Adapt PRTG individually and dynamically to your needs relying on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems
  • REST Custom Sensor: Monitor almost everything that provides XML or JSON


Over 95% of our customers recommend PRTG


Paessler AG worldwide trialled PRTG in over 600 IT departments.
The aim was to tune the network monitoring software closer to the needs of the administrators.
The result of the survey: over 95% of the participants would recommend PRTG - or already had.

Recommend PRTG


Still not convinced?



More than 500,000 sysadmins love PRTG

PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

Still not convinced?


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.




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Network Monitoring Software - Version (September 21st, 2021)


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Supported Vendors & Applications



Other SNMP-related topics

Server monitoring

What are the best ways to monitor your servers? We’ve already covered some of the basics here. On our server monitoring page, you’ll find out which sensors can be used to monitor individual servers.  

Read more


Bandwidth overload can quickly cause the entire network to come to a standstill. PRTG lets you monitor your bandwidth. It displays your current LAN and WLAN loads in real time.


Read more

Ping monitoring

PRTG uses ping queries to check the availability of all the devices in your network. In the event of interruptions or malfunctions, you'll be notified at once. Learn more about our ping sensors here.


Read more

MIB files

PRTG reads and analyzes MIB files. An MIB (“management information base”) contains information that makes it possible to monitor and manage a network device.


Read more

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