PRTG vs Nagios Comparison for Network Monitoring Tasks

prtg compared to nagios

The age long debate of which networking monitoring and management software is better never ceases to amaze us, especially in the comparison of PRTG vs NAGIOS – We're going to break down the main differences between the two software packages, along with some of their feature sets, capabilities and pricing models.

Some Features we'll be discussing and comparing between the two are as follows:

  • Network Infrastructure Monitoring
  • Scalability and Trend Forecasting
  • Email, SMS and other Alerts/Triggers
  • Plugins and Add-ons
  • SNMP and Agentless Monitoring
  • Syslog
  • Time of Implementation
  • Web Accessible GUI
  • Network Maps and Topology Visuals
  • Bandwidth and Flow (Netflow, sFlow, IPFix, etc) Analyzer and Collection
  • Hardware Monitoring (Servers, Printers, Routers/Switches, Desktops, etc)
  • Wifi (including Linksys brand) Management & Monitoring
  • VMware & Hyper-V Monitoring Capabilities
  • VoIP Monitoring Capabilities
  • Cloud Service Uptime Monitors
  • Temperature, Humidity, Physical Access to Server Room/Closet
  • Active Directory/LDAP Integration
  • Automatic Network Discovery and Scanning
  • SLA Reporting Functionality/Features

The list above is not fully comprehensive of what both software solutions are capable of, but are merely a standard that many admins and engineers look for when evaluating software packages before committing to one of the other.

To see a full list of features and capabilities each software can do, see their respective websites here for PRTG and here for Nagios to get an understanding of what they are capable of.

Comparison and Breakdown

PRTG Network

Nagios XI

Monitor Network Uptime & Critical
Forecast Trends and ExpandabilityYesYes
Alerting SystemYesYes
Add-on/Plugins (3rd Party, etc)YesYes
(Required for Network Maps,
and Wifi Monitoring)
SNMP/Agentless SupportYesYes
Syslog/Event CollectionYesYes
Implementation Time/CostYesYes
Web InterfaceYesYes
Network Topology Maps/VisualsYesNo
(Add-on/Plugin Needed)
Bandwidth/Netflow AnalysisYesYes
Hardware Health StatusYesYes
Wireless Network MonitoringYesNo
(Plugin needed)
Virtualization SupportYesNo
(Plugin Required)
VoIP and QoS Support/MonitorsYesNo
(Plugin Required)
Cloud Service Support/MonitorsYesYes
Server Room Environmental
(Plugin Required)
Active Directory/LDAP IntegrationYesYes
Auto Network Scan/DiscoveryYesYes
IP SLA Support/ReportingYesYes
CostFree Edition up to 100 Sensors (Unlimited Time)
More Pricing for Additional Sensor Found on their PRICE LIST
Core is Free
Nagios XI is $1995 up to 100 Nodes.
Full Pricing List Here
Download PRTG Free!Go to

It's no surprise that many admins and IT professionals are constantly comparing these software packages, they both have very similar traits and features that many engineers and admins want in their monitoring and management arsenal. Nonetheless, if your looking for an All-in-One solution and would like to not have to deal with configuration files within a Linux/Unix system, then PRTG is the way to go.

The battle of PRTG vs Nagios can go on and on, but for if you are looking for an Enterprise Grade solution that has the backing of a support team and fully-featured out-of-the-box solution, then we'd have to recommend PRTG in this case.

Download PRTG Here!

On the other hand, if you want to get your hands dirty and do some manual configuration, installation, and editing of config files, give Nagios a try. We've linked their plugin repositories above under each given section for the feature that is compared. If you're looking for other comparisons to PRTG, check out our other article on Solarwinds NPM for a head-to-head showdown.