Custom alerts and data visualization let you quickly identify and prevent critical events in your network.
PRTG captures, processes, and analyzes essential data.
Capture & display
As soon as PRTG receives syslog messages, PRTG syslog receiver displays all relevant information: including the IP address that the message was sent from, the time stamp of the message, and the message itself.
Process & analyze
As a syslog server, PRTG analyzes the severity level of receive syslog messages to check for potential emergencies, ranging from 0 (emergency) to 7 (debug). PRTG even reads and processes the facility code so that you can immediately identify the type of message that was sent.
Diagnose network issues by continuously tracking syslog message data. Show application availability and performance, resource usage, the syslog entries related to the root cause of the problem, and other key metrics in real time. Visualize monitoring data in clear graphs and dashboards to identify problems more easily. Gain the overview you need to troubleshoot all kinds of issues with network performance.
Device tree view of the complete monitoring setup
Custom PRTG dashboard for keeping an eye on the entire IT infrastructure
Live traffic data graph in PRTG
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network monitor”
“The real beauty of PRTG is the endless possibilities it offers”
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is very hard to beat”
If you need a free, easy to set up solution for monitoring, storing, and analyzing syslog messages, then the freeware edition of PRTG is ideal. You'll even have sensors to spare and if your requirements change, you can quickly increase your capabilities at any time.
Many sysadmins would like to use a professional network monitoring tool but don't have the budget to do so. Getting management to free up the necessary funds can be time-consuming and stressful. Often it's a lot easier to use a free tool. PRTG makes this possible by including 100 free sensors that never expire.
Have you ever sat at home in front of your computer and wondered how to set up a syslog server for your home network? You're not alone. Many sysadmins also want reliable software for their homes. The syslog server features of PRTG can be useful for any network.
With the Ping v2 sensor of PRTG, you can monitor the availability of all the hardware assets in your network. Servers, routers, switches, workstations…PRTG keeps an eye on everything. Find out more about uptime monitoring with PRTG.
How much traffic passes through your network? When and where do spikes in traffic occur? How does your traffic change over time? PRTG tells you all this and more. As a result, you can take all the necessary precautions to ensure that your network is running at optimal capacity. Find out more about bandwidth monitoring with PRTG.
PRTG not only helps with syslog monitoring, but also provides comprehensive log monitoring and log management for various systems. This includes collecting and analyzing log messages from event logs, operating system logs, and log files across different platforms like macOs, Linux, or Windows. This capability ensures that network administrators have a complete view of their network infrastructure.
PRTG comes with more than 250 native sensor types for monitoring your entire on-premises, cloud, and hybrid cloud environment out of the box. Check out some examples below!
The Syslog Receiver sensor receives and analyzes Syslog messages. It can show the following:
The SNMP Trap Receiver sensor receives and analyzes Simple Network Management Protocol (SNMP) traps. . It can show the following:
The WMI Event Log sensor monitors a Windows log file. It can show the following:
See the PRTG Manual for a list of all available sensor types.
Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.
Is your network more up or down in the fight against downtime? This report is absolutely business critical, because whenever your network is down, productivity and sales decrease. Find out more about with uptime monitoring PRTG.
PRTG monitors both open and closed ports. Port monitoring plays a vital role in ensuring that malware does not infiltrate your network. Without monitoring software, it’s next to impossible to keep an eye on all your open ports.
What’s going on with the traffic in your network? To find out, simply generate the Top 10 Talkers report. PRTG provides real-time updates on what's up with your network – and notifies you immediately if there are sudden and drastic changes.
Custom alerts and data visualization let you quickly identify and prevent critical events in your network.
Set up PRTG in minutes and use it on almost any mobile device.
“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.”
Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.
Combining PRTG’s broad monitoring feature set with IP Fabric’s automated network assurance creates a new level of network visibility and reliability.
Rhebo and PRTG offer a comprehensive monitoring solution for IT and OT environments: from condition monitoring through to anomaly and threat detection.
UVexplorer integrates tightly with PRTG to bring fast and accurate network discovery, detailed device inventory, and automatic network mapping to the PRTG platform.
Real-time notifications mean faster troubleshooting so that you can act before more serious issues occur.
Network Monitoring Software – Version 26.1.116.1532 (February 9th, 2026)
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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 such as routers, switches, firewalls, and even some printers and scanners. In addition, syslog is available on Unix- and Linux-based systems and many web servers including Apache.
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.
While most Unix implementations and network vendors like Cisco have their own barebones syslog collectors, there are several others available, too.
Via the Syslog Receiver sensor, PRTG can be used as a basic syslog receiver that monitors, collects, and analyzes incoming syslog messages.
PRTG offers a preconfigured Syslog Receiver sensor. You can add this sensor either to the probe device of your PRTG installation to collect all syslog messages sent from your entire system. Or you can add the sensor to a specific device in PRTG to collect only syslogs sent from this device.
The sensor shows the following metrics:
You can set specific filter rules to only collect and analyze syslog messages that are business critical for you. This way, you will only be notified about alerts that you really want to know about.
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.
Paessler conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins. The result of the survey: over 95% of the participants would recommend PRTG – or already have.
Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.
Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.
Everyone has different monitoring needs. That’s why we let you try PRTG for free.
