PRTG Linux server monitoring:
Stable, secure, effective


  • PRTG monitors Linux-based networks both
    securely and thoroughly
  • PRTG automatically notifies you when threshold
    values are exceeded
  • PRTG lets you keep a constant eye on network
    structure, traffic, and connections


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 hosted for you


Flawless Linux network monitoring with PRTG

As a company, you need a central network management. Most important work processes run via the in-house network, which can run via a Windows or Linux server. The job of administrators is to ensure smooth operation and cost-effective utilization. Professional monitoring software such as PRTG can help.

PRTG is not only compatible with Windows systems, but also with networks running via Linux servers. With Linux monitoring, you get an overview of the system and device status, as well as updates on traffic strength and potential bottlenecks. You also get important information on users, connections, and your network structure.

Thanks to the built-in Linux server monitoring of PRTG, well-founded decisions can be made on the future development and optimization of your service management. Linux monitoring also lets you monitor the amount of free disk space, allowing you to quickly fix memory errors. Moreover, PRTG features time synchronization monitoring (via NTP).

With PRTG, admins obtain an overview of their Linux networks, employees enjoy a stable working environment, and managers are given figures they can trust. Improve the performance of your network and solve problems before they arise.

Thanks to PRTG, everyone will work with peace of mind.

A sneak peek into Linux monitoring with PRTG


This is how Linux monitoring with PRTG works


iWhat 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.)

PRTG uses customized Linux and Unix sensors to monitor Linux systems, without the need to install or modify anything on the target device. Linux operating systems are monitored by way of SNMP and SSH protocols, while Linux servers are monitored using WBEM and SSH protocols. With SSH, data is sent via a secure connection to prevent sensitive information from being compromised during the sending of monitoring data.

Customize your own threshold and alarm values. These values are used to inform you if memory surges on one or more servers. Such information is especially important for application and terminal servers which are used by a great many users. Even standard applications such as word processors or spreadsheets can take up so much system memory that overall system performance is impaired. PRTG notifies you before memory bottlenecks occur, enabling your network to perform optimally in the long run.

The PRTG Linux monitoring also lets you monitor the available hard disk space of Linux systems and time synchronization via NTP (Network Time Protocol). PRTG for Linux servers gathers information on system load, RAM, and hard drives directly from the respective systems. 

7 good reasons
to choose PRTG
as your Linux
monitoring tool






i 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.
Read more

Gain an overview

Gain an overview

The PRTG dashboard provides for a convenient overview of the status and performance of your Linux network, over- and undercapacities, NTP, hard drives, and memory.

Be notified

Be notified

If a bandwidth overload is looming or another threshold value exceeded, you’ll be notified at once, wherever you happen to be.

Reduce workloads

Reduce workloads

You won’t need to retrieve the various system messages yourself, but can rely on the PRTG Syslog Sensor and notification system.

Stabilize your network

Stabilize your network

With constant monitoring, you will ensure that critical weak points and imbalances in your Linux network are repaired as quickly as possible.

Secure your business

Secure your business

Linux network monitoring lets you follow up on unusual incidents, analyze suspicious traffic, prevent critical errors, and promptly set up new capacities.

Make your IT more effective

Make your IT more effective

Monitoring and quick solutions provide your co-workers with a stable and effective IT environment, and lay the groundwork for achieving company goals.

Measure your network structure

Measure your network structure

With PRTG, you get a detailed view of how data traffic is structured in your Linux network, and can take corresponding steps to advance the needs of your business.

Your Linux servers and devices at a glance
- even 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!



“We can all work with greater peace of mind knowing that our systems are constantly being monitored.”

Markus Puke, Network Administrator, Schüchtermann Klinik, Germany.


200,000 administrators worldwide
trust in our software.

“Fantastic network and infrastructure monitoring solution that is easy to deploy and easier still to use. Simply the best available.”

Read more reviews

“Software is absolutely perfect, Support is superior. Meets all needs and requirements, This is a must have solution if you are needing any form of monitoring.”

Read more reviews

“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”

Read more reviews

  • 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 makes life easier!

Let our Linux monitoring software work for you.
So you can concentrate on your day-to-day tasks with peace of mind.

PRTG saves time

With PRTG, you get one central monitoring tool for all your Linux networks. You’ll enjoy a quick and complete overview at all times via our dashboard and app.

PRTG saves worry

Monitoring your Linux networks around the clock has never been easier. The built-in alarm feature is quick to act – before crashes and complaints can arise.


80% of our customers report substantial or even exceptional network management cost savings. Our customers report that their PRTG licenses have paid for themselves in an average of a few weeks.

Linux server monitoring sensors

The following sensors can be used for Linux server monitoring with PRTG:

SNMP Linux

Various sensors that monitor different parameters of a Linux/Unix system using SNMP like:

  • Free disk space
  • Average system load
  • Memory usage
  • Input/output on disks


Several SSH sensors show data like free disk space, load average, memory usage of a Linux/Unix system, status and details of SANs or monitors scripts using SSH.

Python Script Advanced

The Python Script Advanced sensor executes a Python script on the computer and is provided as part of the PRTG API. It can show values returned by the Python script in multiple channels (must be valid JSON or XML).

More data collecting sensors

SNMP Linux Load Average

The SNMP Linux Load Average sensor monitors the "load average” of a Linux/Unix system by way of Secure Shell (SSH) or the Simple Network Management Protocol (SNMP).

SNMP Linux Meminfo

The SNMP Linux Meminfo sensor monitors the memory usage of a Linux/Unix system using Simple Network Management Protocol (SNMP).

Linux Disk Free

The Disk Free Sensor monitors available hard disk space for Linux. This sensor uses SSH or SNMP to display the total free disk space as a sum and as a percentage for each mounted partition (data carrier).

SNMP Traffic

The SNMP Traffic sensor monitors traffic on a device using SNMP.

WBEM Custom

The WBEM Custom sensor performs custom queries via WBEM.


ebook cloud roadmap

Thinking of going to the cloud with your IT?
Here is our proven roadmap

There are many questions to answer before moving your IT to the cloud, so Paessler offers
a free ebook that could help you.

Get your free copy of our cloud ebook now.

PRTG: The swiss army knife for sys admins

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
  • New REST API Sensor: Monitor almost everything that provides XML or JSON

Read more about REST API Monitoring here >


Also interesting:


Packet Capture: PRTG analyzes data packets and displays the data packet loss rate. In the event a critical value is exceeded, you’ll automatically receive an alert.

Sharepoint Monitoring: A SharePoint Server malfunction can have serious consequences. PRTG monitoring helps you solve problems faster and keep SharePoint stable.

Backup Monitoring: PRTG secures cloud and online backups, operating system backups and virtual machines. In case of incorrect backups, you get automatically notified.

German quality

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



Administrators must compare monitoring tools or search for a free one. There are several suppliers on the market.

PRTG comes with a full range of advantages:

1. Free trial version: PRTG is available in a free trial version. Use this version to get a feel for our network monitoring tool with no risk whatsoever.

2. Over 200,000 administrators: whether in large or small businesses, authorities, colleges or administrations - all around the world, more than 200,000 administrators put their trust in our network monitoring tool, and can therefore also monitor their bandwidth. Read our case studies here.

3. Support: do you have a question? We respond in a jiffy! You can already access a great deal of information online by consulting our FAQs, manuals, videos, webcasts, or knowledge base. You can of course also send us a message. We'll do our best to get back to you within 24 hours on business days.

PRTG – your network monitoring tool

PRTG is the Paessler AG all-in-one network monitoring tool. Our software is used by more than 200,000 administrators worldwide, whether it be to monitor their hardware- and server performance , their virtual environments, or the accessibility of their websites. Use PRTG for database monitoring or sql monitoring.  PRTG is a one fits all network analyzer tool.

Save time, worry, and money. PRTG is configured in a matter of minutes. The trial version is offered free of charge. And you can upgrade whenever you like.


Network Monitoring Software - Version (January 22nd, 2020)


Download for Windows and hosted version 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


Related Topics