Paessler PRTG

Analyze syslogs and safeguard your network's security with PRTG


  • Monitor all your system messages and logs from one place
  • Get alerted about system errors and security loopholes
  • Collect a wide range of syslog data, including source, IP address, and severity level

Our users give top ratings for monitoring with Paessler PRTG



PRTG makes analyzing syslog messages easy

Custom alerts and data visualizations make it easy to monitor, identify, and prevent system errors and other network security issues.








Stress-free syslog analysis. Stronger security.

Is it one of the routers? A firewall? The scanner someone insisted you keep, even though nobody's scanned anything in years?

With hundreds of syslog messages per second even on relatively small networks, tracking down what's causing system errors and spotting network vulnerabilities can feel like trying to unravel a tightly knotted piece of string.

Unless… What if you could zoom in on the root cause of an issue straight away?

Working quietly in the background, Paessler PRTG examines syslog messages and alerts you the moment something doesn't look right, so you can fix errors and close security loopholes before they do lasting damage.


Fix system errors fast: 3 reasons to choose PRTG as your syslog monitoring tool

Real-time alerts

No need to manually trawl through syslog messages ever again.

PRTG monitors your network 24/7, sounding the alarm as soon as there's an error and telling you exactly where (and what) it is via SMS, email, push notification – or even sending out a syslog message or SNMP trap itself.

Custom configuration

Fix system and device downtimes with a few clicks. Sort syslog messages by source and threat level and get notified about specific events you define.

For a more in-depth view, PRTG logs all incoming system messages, which you can analyze to easily find the root cause of an issue.

Comprehensive tracking

With more than 250 preconfigured sensors for monitoring your IT infrastructure, PRTG syslog analyzer can gather an unparalleled wealth of data in one place.

This makes it easy to keep an eagle eye on your whole network and ensure it stays secure.


What syslog monitoring looks like in PRTG

Diagnose network issues by continuously monitoring system messages and logs. Show the source, severity level, and timestamp of system errors in real time and visualize data in graphic maps & dashboards to identify problems more easily. Gain the visibility you need to troubleshoot and fix system errors and other network security loopholes.


Start syslog monitoring with PRTG and see how it can make your network more reliable and your job easier.


How PRTG syslog analyzer works

PRTG acts as your central syslog server
. Our sophisticated Syslog Receiver sensor gathers and processes system messages and logs from devices across your network, notifying you as soon as there's an error or if specific performance metrics fall below your chosen thresholds. The sensor shows:

  • The number of dropped packets on the syslog port
  • The number of messages categorized as "error"
  • The number of received messages
  • The number of messages categorized as "warning"


It also logs the following data in a list of processed syslog messages:

Combine it with any other of our PRTG sensors – including sensor s for monitoring, for example, your VPN, SharePoint server, or backups – to conduct deeper analysis and make your network even more secure.


PRTG is compatible with all major vendors and manufacturers

vendors applications blue


Easily find the source of the problem with our PRTG syslog monitoring solution

Real-time alerts and custom notifications make it easy to solve system failures and other network issues.



Your syslog analyzer at a glance – even on the go

Set up PRTG in minutes and use it on almost any mobile device.


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 in one view!


vendors vm ware



Create innovative solutions with Paessler’s partners

Partnering with innovative vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.


IT that works constitutes a business-critical basis for a company's success. Availability and security must be defined for the respective purpose and closely monitored – by OT and IT alike.

Read more


Integrating monitoring results from PRTG into NetBrain maps makes the foundation for network automation.

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With ScriptRunner, Paessler integrates a powerful event automation platform into PRTG Network Monitor.

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“Excellent tool for detailed monitoring. Alarms and notifications work greatly. Equipment addition is straight forward and server initial setup is very easy. ...feel safe to purchase it if you intend to monitor a large networking landscape.”

Infrastructure and Operations Engineer in the Communications Industry, firm size 10B - 30B USD

Read the entire review at Gartner Peer Insights 


PRTG makes analyzing syslog messages easy

Custom alerts and data visualizations make it easy to monitor, identify, and prevent system errors and other network security issues.


Monitor syslog messages: FAQ


1. What is syslog?

Syslog stands for System Logging Protocol and is a standard protocol used to send system log or event messages to a specific server, called a syslog server. It is primarily used to collect various device logs from several different machines in a central location for monitoring and review. The protocol is enabled on most network equipment. In addition, syslog is available on Unix- and Linux-based systems and many web servers including Apache.

2. Can I use PRTG as a syslog analyzer?

Yes. PRTG is a proprietary network monitoring tool that also monitors and evaluates system messages and logs in real time. It can receive and analyze syslog messages from routers, printers, scanners, switches, firewalls, and other devices on your network. If it detects errors or unusual activity, it sends you a text, email, or in-app message, so you can fix the issue before it causes serious security issues or network disruption.

3. What is a syslog server in the context of PRTG?

Syslog servers are also known as syslog collectors or syslog receivers. Devices that are accordingly configured send syslog messages to the syslog receiver. For example, the IP address of the destination syslog server must be configured on the sending device. There is no mechanism within the syslog protocol that allows a server other than the one you configured to request syslog data.

PRTG can be used as a basic syslog receiver that monitors, collects, and analyzes incoming syslog messages.

4. Why should I use a syslog analyzer?

There are lots of good reasons to use a syslog analyzer. Having a specialized syslog analyzer means you don't have to retrieve and check syslogs manually. It ensures security risks don't fall through the cracks. And, most importantly, it means you can be proactive, addressing network vulnerabilities before bad actors can exploit them.

5. What is a sensor in PRTG?

In PRTG, “sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, for example the traffic of a switch port, the CPU load of a server, or the free space on a disk drive.

On average, you need about 5-10 sensors per device or one sensor per switch port.


More than just a monitoring tool:
Reasons our customers love PRTG



PRTG the multi-tool

PRTG: The multi-tool for sysadmins

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

  • HTTP API: Access monitoring data and manipulate monitoring objects via HTTP requests
  • Custom sensors: Create your own PRTG sensors for customized monitoring
  • Custom notifications: Create your own notifications and send action triggers to external systems
  • REST Custom sensor: Monitor almost everything that provides data in XML or JSON format


Still not convinced?


More than 500,000
sysadmins love PRTG

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


Monitor your entire IT infrastructure

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


Try Paessler PRTG
for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free.



Paessler PRTG 

Start syslog monitoring with PRTG and see how it can make your network more reliable and your job easier.




Network Monitoring Software - Version (February 14th, 2024)


Download for Windows and cloud-based version PRTG Hosted Monitor available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more

Supported Vendors & Applications

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