<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: Architecture and User Interfaces

System Parts

PRTG core server
This is the central part of a PRTG installation. The PRTG core server includes the data storage, the web server, the report engine, the notification system, and more. The PRTG core server is configured as a Windows service that permanently runs.

Probes
This is the part of PRTG that performs the actual monitoring. There are local probes, remote probes, and cluster probes in PRTG Network Monitor, and there are hosted probes and remote probes in PRTG Hosted Monitor. Probes forward all monitoring data to the central PRTG core server. Probes are configured as Windows services that permanently run.

We assume that all systems on which the PRTG core server with the local probe or any remote probes run are secure. It is every system administrator's responsibility to make sure that only authorized persons can access these systems. For this reason, we highly recommend that you use dedicated machines for your PRTG system parts.

User Interfaces

PRTG web interface
With the Asynchronous JavaScript and XML (AJAX) based PRTG web interface, you can configure devices and sensors, review monitoring results, and configure the system administration and user management.

PRTG app for desktop
The PRTG app for desktop is a cross-platform application that you can use as an alternative interface for fast access to data and monitoring management. With the PRTG app for desktop, you can connect to several independent PRTG core servers or PRTG Hosted Monitor instances to display their data and centrally manage your monitoring.

PRTG apps for mobile network monitoring
With the PRTG apps for iOS and Android, you can monitor your network on the go and receive push notifications in case of alerts.

System Administration Tools

PRTG Administration Tool on PRTG Core Server Systems
With the PRTG Administration Tool on the PRTG core server system, you can configure basic PRTG core server settings in PRTG Network Monitor such as the PRTG System Administrator user login, web server IP addresses and the web server port, probe connection settings, the cluster mode, the system language, and more.

PRTG Administration Tool on Remote Probe Systems
With the PRTG Administration Tool on the remote probe system, you can configure basic remote probe settings such as the name of the remote probe, IP address and server connection settings, and more.

Local probe

During the installation, PRTG automatically creates the local probe. In a single-probe installation, which is the default setup, the local probe performs all monitoring.

For PRTG Network Monitor, the PRTG core server with the local probe inside the corporate LAN can monitor services and servers in the entire LAN.

Hosted probe

When you create a PRTG Hosted Monitor instance, the system automatically creates the hosted probe. The hosted probe shows monitoring values of the hosted instance and can monitor devices, servers, and services that are publicly available in the internet like websites.

Remote probes

You can create additional remote probes to monitor multiple locations, to monitor a LAN with PRTG Hosted Monitor, or for several other scenarios. Remote probes use SSL/TLS-secured connections to the PRTG core server. With remote probes, you can securely monitor services and systems inside remote networks that are not publicly available or that are secured by firewalls.

For more information, see section Add Remote Probe.

For more information, see the video tutorial: Distributed monitoring with PRTG.

Cluster probes

In a cluster, a cluster probe runs on all cluster nodes. All devices that you create on the cluster probe are monitored by all cluster nodes, so data from different perspectives is available and monitoring continues even if one of the cluster nodes fails.

Mini probes

Mini probes let you create small probes on any device, not only on Windows systems.

For more information, see section Mini Probe API.