Paessler Support Knowledge Base - In-Depth Technical Information
Informations techniques sur la surveillance réseau
Cette page n’existe pas en français en ce moment. Nous vous prions de nous excuser.
The Paessler Support Knowledge Base contains articles and HowTos that can be helpful with the usage of Paessler products.
Search the Knowledge Base
Please enter one or more search terms:
Note: You can optionally use the Google search query syntax.
View Articles by Category
Licensing and Maintenance
IPCheck Server Monitor V5
- IPCheck Server Monitor V5 (9)
- How can I load/import my MIB files into PRTG or IPCheck?
- Do I need PRTG Traffic Grapher or IPCheck Server Monitor?
- Where can I find error logs when running into trouble with IPCheck?
- How does IPCheck Server Monitor calculate the uptime/downtime values?
- Top 5 Reasons for Notification Problems - Why don't I get notifications from IPCheck Server Monitor? Hints for debugging
- How to update to the latest version of IPCheck Server Monitor
- Monitoring the thread count of active processes via WMI Query sensors
- Testing WMI Requests
- What to do when getting the 'Code Error 80041010 - Invalid Class' error while creating or using WMI sensors
- IPCheck Server Monitor V5 - Sensor Related Topics (20)
- Using CMD/Batch Files as Custom Sensors in IPCheck Server Monitor
- How to Set Up HTTP Transaction Sensors for IPCheck Server Monitor
- What to look for if an IPCheck sensor reports a "down" state
- Creating a custom PING sensor with millisecond warning and error configuration
- Using SNMP GET requests in a Custom Script Sensor
- How to find out OIDs for Custom SNMP sensors
- How can I load/import my MIB files into PRTG or IPCheck?
- How do I install the SNMP daemon on Linux machines?
- How does IPCheck Server Monitor calculate the uptime/downtime values?
- Fileinfo: Monitoring file parameters with IPCheck using a custom EXE Sensor
- How does the scheduling for sensor requests work in IPCheck Server Monitor?
- Remotely Monitoring Free Disk Space on a PHP Enabled Web Server With IPCheck Server Monitor
- Creating a custom sensor that uses multiple PINGs to monitor WAN networks
- Monitoring System Parameters like Memory, CPU and Disks on Linux Systems via SNMP
- Monitoring numeric non-integer SNMP values with IPCheck Server Monitor
- Setting up SQL Server Sensors for MS-SQL, MySQL and Oracle with IPCheck Server Monitor
- Using phpSysInfo to monitor the system health of a PHP webserver with IPCheck Server Monitor
- Monitoring the thread count of active processes via WMI Query sensors
- Testing WMI Requests
- What to do when getting the 'Code Error 80041010 - Invalid Class' error while creating or using WMI sensors
- IPCheck Server Monitor V5 - Common Technical Problems (15)
- Why do I see requests from IPCheck or www.paessler.com in my web log?
- How to run the websites of IIS5/6 and IPCheck on one machine
- Checking and debugging your local IPs
- Solving "Could not connect" or "Error 10060" Messages when using SNMP
- Installing the SNMP service on Windows NT/2000/XP/2003
- Where can I find error logs when running into trouble with IPCheck?
- Experiencing "TCP/IP has reached the security limit imposed on the number of concurrent TCP connect attempts" with IPCheck
- Top 5 Reasons for Notification Problems - Why don't I get notifications from IPCheck Server Monitor? Hints for debugging
- How does the scheduling for sensor requests work in IPCheck Server Monitor?
- The HELP function of my Paessler product does not work on Vista or Longhorn
- What to do with "This program has been damaged" messages when starting Paessler programs
- How to update to the latest version of IPCheck Server Monitor
- Monitoring the thread count of active processes via WMI Query sensors
- Testing WMI Requests
- What to do when getting the 'Code Error 80041010 - Invalid Class' error while creating or using WMI sensors
- IPCheck Server Monitor V5 - Data Storage and Access (7)
- Accessing the monitoring data of IPCheck Server Monitor
- How IPCheck stores its data. How to backup IPCheck's data.
- How to move an installation of IPCheck Server Monitor
- Where can I find error logs when running into trouble with IPCheck?
- Documentation of the TEXTLIST interface of IPCheck Server Monitor and PRTG Network Monitor
- How to change the storage drive and folder for the database of IPCheck Server Monitor
- How to update to the latest version of IPCheck Server Monitor
- IPCheck Server Monitor V5 - Notification Related Topics (7)
- Sending notifications via SNMP traps from IPCheck Server Monitor
- Posting notifications into the Event Log with IPCheck Server Monitor
- Sending SYSLOG notifications with IPCheck Server Monitor
- How does IPCheck Server Monitor calculate the uptime/downtime values?
- Top 5 Reasons for Notification Problems - Why don't I get notifications from IPCheck Server Monitor? Hints for debugging
- How does the scheduling for sensor requests work in IPCheck Server Monitor?
- How does IPCheck process sensor notifications? (Flowchart)
- IPCheck Server Monitor V5 - Tips&Tricks (10)
- Changing IPCheck's program name and upgrade URLs shown in the WebGUI
- Monitoring one IPCheck instance with another instance of IPCheck
- How to change the storage drive and folder for the database of IPCheck Server Monitor
- Remotely Monitoring Free Disk Space on a PHP Enabled Web Server With IPCheck Server Monitor
- Remotely Updating Remote Probe Installations for IPCheck Server Monitor
- Using phpSysInfo to monitor the system health of a PHP webserver with IPCheck Server Monitor
- How to set up audible notifications for PRTG and IPCheck using speech synthesis software
- Monitoring the thread count of active processes via WMI Query sensors
- Testing WMI Requests
- Command Line Parameters and Exit Codes for Paessler Setups
- IPCheck Server Monitor V5 - Custom Sensor Samples (8)
- IPCheck Custom Sensor: Reading Free Disk Bytes from local or remote computer using WMI
- IPCheck Custom Sensor: Reading Windows Performance Counters from local or remote computer
- Creating a Custom Sensor DLL for IPCheck Server Monitor using Delphi
- Creating a Custom Sensor EXE for IPCheck Server Monitor using Delphi
- Fileinfo: Monitoring file parameters with IPCheck using a custom EXE Sensor
- Remotely Monitoring Free Disk Space on a PHP Enabled Web Server With IPCheck Server Monitor
- Creating a custom sensor that uses multiple PINGs to monitor WAN networks
- Monitoring numeric non-integer SNMP values with IPCheck Server Monitor
PRTG Traffic Grapher V6
- PRTG Traffic Grapher V6 (27)
- PRTG Traffic Grapher Version History (V4-6)
- Configuration Tips for Cisco Routers and PRTG
- How PRTG Traffic Grapher stores its data
- Using live graphs from PRTG in other webpages using static image URLs
- Upgrading from PRTG Version 3 to Version 6
- Upgrading from PRTG Version 4 to Version 6
- Solving "Could not connect" or "Error 10060" Messages when using SNMP
- How can I load/import my MIB files into PRTG or IPCheck?
- Do I need the Freeware Edition or PRTG or one of the Commercial Editions?
- Do I need PRTG Traffic Grapher or IPCheck Server Monitor?
- Analyzing runtime problems of PRTG Traffic Grapher
- What does the OTHER channel mean in PRTG Traffic Grapher
- What is shown in the "Coverage" column in data tables of PRTG Traffic Grapher?
- Why do I see Huge Peaks or Spikes in Graphs for SNMP Sensors?
- How can I change the colors of the sensor list in the web interface of PRTG Traffic Grapher
- Customizing Panel Layouts for Custom Graphs
- Details about the meaning of the "Busy Sensors" value in PRTG Traffic Grapher
- Does my Cisco device (Router/Switch) support NetFlow Export?
- What to do if the PRTG service does not start after shutting down the GUI
- No data displayed in PRTG Live Graph
- How to update to the latest version of PRTG Traffic Grapher
- Binding historic datasets to new sensors and recalculating historic data for an individual sensor
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- How to Discern Excessive Bandwidth Usage using PRTG Traffic Grapher
- Issues with SNMP Helper Pro / Packet Sniffer sensors caused by DEP settings
- Installation of PRTG Traffic Grapher on Ubuntu with Wine
- Why we do not recommend installing software via Remote Desktop
- PRTG Traffic Grapher V6 - Data Storage and Access (10)
- How PRTG Traffic Grapher stores its data
- Upgrading from PRTG Version 3 to Version 6
- Upgrading from PRTG Version 4 to Version 6
- What do the values in PRTG's exported CSV log file say?
- How to change the data storage drive and folder of PRTG Traffic Grapher
- How to move an installation of PRTG Traffic Grapher to another computer
- How RAM memory is allocated when using top lists in PRTG Traffic Grapher
- How to update to the latest version of PRTG Traffic Grapher
- Binding historic datasets to new sensors and recalculating historic data for an individual sensor
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- PRTG Traffic Grapher V6 - Common Technical Problems (30)
- How to run the websites of IIS5/6 and PRTG on one machine
- How to set up traffic monitoring with PRTG for various infrastructures
- Planning large installations of PRTG Traffic Grapher
- Why PRTG may stop recording data as soon as the Windows GUI is closed
- PRTG service is not started (Event ID 7000/Error 193 in system log)
- Checking and debugging your local IPs
- Solving "Could not connect" or "Error 10060" Messages when using SNMP
- Installing the SNMP service on Windows NT/2000/XP/2003
- What to do if PRTG shows a "Multiple Instances Detected" message
- Using Paessler Netflow Tester to debug NetFlow installations
- Using Paessler SNMP Tester to debug SNMP problems with PRTG
- Using Paessler Network Card Packet Counter to debug problems with PRTG
- Analyzing runtime problems of PRTG Traffic Grapher
- What does the OTHER channel mean in PRTG Traffic Grapher
- How to change the data storage drive and folder of PRTG Traffic Grapher
- How to move an installation of PRTG Traffic Grapher to another computer
- The HELP function of my Paessler product does not work on Vista or Longhorn
- What is shown in the "Coverage" column in data tables of PRTG Traffic Grapher?
- Why do I see Huge Peaks or Spikes in Graphs for SNMP Sensors?
- What to do with "This program has been damaged" messages when starting Paessler programs
- Details about the meaning of the "Busy Sensors" value in PRTG Traffic Grapher
- What does the sensor name "Error converting OID" mean when creating sensors using an OIDLIB in PRTG
- What to do if the PRTG service does not start after shutting down the GUI
- No data displayed in PRTG Live Graph
- How to update to the latest version of PRTG Traffic Grapher
- Binding historic datasets to new sensors and recalculating historic data for an individual sensor
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- Issues with SNMP Helper Pro / Packet Sniffer sensors caused by DEP settings
- Installation of PRTG Traffic Grapher on Ubuntu with Wine
- Why we do not recommend installing software via Remote Desktop
- PRTG Traffic Grapher V6 - Project Design and Planning (14)
- How to set up traffic monitoring with PRTG for various infrastructures
- Configuration Tips for Cisco Routers and PRTG
- Netflow 5 Filter Parameters supported by PRTG Traffic Grapher
- Planning large installations of PRTG Traffic Grapher
- Comparing PRTG's SNMP based monitoring with Netflow Monitoring and Packet Sniffer based monitoring
- Using Paessler Netflow Tester to debug NetFlow installations
- How to move an installation of PRTG Traffic Grapher to another computer
- How RAM memory is allocated when using top lists in PRTG Traffic Grapher
- Does my Cisco device (Router/Switch) support NetFlow Export?
- How to update to the latest version of PRTG Traffic Grapher
- Binding historic datasets to new sensors and recalculating historic data for an individual sensor
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- How to Discern Excessive Bandwidth Usage using PRTG Traffic Grapher
- Why we do not recommend installing software via Remote Desktop
- PRTG Traffic Grapher V6 - Tips&Tricks (23)
- Serving Web Pages of PRTG Traffic Grapher With Other Web Servers
- Using live graphs from PRTG in other webpages using static image URLs
- How to find out OIDs for Custom SNMP sensors
- Automated License Key Installation for PRTG Traffic Grapher
- Changing the port number of a sensor in the .prtg file manually
- What does the OTHER channel mean in PRTG Traffic Grapher
- How to change the data storage drive and folder of PRTG Traffic Grapher
- How to move an installation of PRTG Traffic Grapher to another computer
- Monitoring System Parameters like Memory, CPU and Disks on Linux Systems via SNMP
- Why do I see Huge Peaks or Spikes in Graphs for SNMP Sensors?
- How can I change the colors of the sensor list in the web interface of PRTG Traffic Grapher
- Customizing Panel Layouts for Custom Graphs
- How RAM memory is allocated when using top lists in PRTG Traffic Grapher
- How to set up audible notifications for PRTG and IPCheck using speech synthesis software
- What to do if the PRTG service does not start after shutting down the GUI
- No data displayed in PRTG Live Graph
- How to update to the latest version of PRTG Traffic Grapher
- Binding historic datasets to new sensors and recalculating historic data for an individual sensor
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- How to Discern Excessive Bandwidth Usage using PRTG Traffic Grapher
- Installation of PRTG Traffic Grapher on Ubuntu with Wine
- Why we do not recommend installing software via Remote Desktop
- Command Line Parameters and Exit Codes for Paessler Setups
- PRTG Traffic Grapher V6 - SNMP Related Topics (13)
- How to find out OIDs for Custom SNMP sensors
- SNMP, MIBs and OIDs - an Overview
- Solving "Could not connect" or "Error 10060" Messages when using SNMP
- Installing the SNMP service on Windows NT/2000/XP/2003
- How can I load/import my MIB files into PRTG or IPCheck?
- How do I install the SNMP daemon on Linux machines?
- Finding MIB files for specific devices or systems
- Using Paessler SNMP Tester to debug SNMP problems with PRTG
- Performing Silent Installations of SNMP Helper Freeware and SNMP Helper Pro
- Monitoring System Parameters like Memory, CPU and Disks on Linux Systems via SNMP
- What does the sensor name "Error converting OID" mean when creating sensors using an OIDLIB in PRTG
- Changing existing PRTG custom sensors from Delta to Gauge (and vice-versa)
- Issues with SNMP Helper Pro / Packet Sniffer sensors caused by DEP settings
- PRTG Traffic Grapher V6 - Common Pre-Sales Questions (9)
- Configuration Tips for Cisco Routers and PRTG
- Do I need the Freeware Edition or PRTG or one of the Commercial Editions?
- Do I need PRTG Traffic Grapher or IPCheck Server Monitor?
- Can I monitor the bandwidth usage of different protocols?
- Can I monitor the traffic of several websites running on one machine?
- Can I monitor the traffic of several computers using one leased line?
- Can I monitor the individual bandwidth usage of each port of my router?
- How many sensors can I monitor using PRTG Traffic Grapher?
- Does my Cisco device (Router/Switch) support NetFlow Export?
PRTG Network Monitor 7
- PRTG Network Monitor 7 - Tips&Tricks (8)
- Publishing Monitoring Results using a PHP Script (Alternative 1)
- Documentation of the TEXTLIST interface of IPCheck Server Monitor and PRTG Network Monitor
- Publishing Monitoring Results using a PHP Script (Alternative 2)
- Command Line Parameters and Exit Codes for Paessler Setups
- PRTG 7 Placeholder Overview
- Filtering Data when using Custom Packet Sniffing or Netflow Sensors Under PRTG Network Monitor 7
- Using Graphs from PRTG Network Monitor in other webpages
- Turning off all SUM channels in a PRTG Network Monitor configuration
SNMP Helper
- SNMP Helper (8)
- Recommendations for MS Exchange Server Monitoring using SNMP Helper
- Recommended CPU Related SNMP Helper Sensors
- Recommended Memory Related SNMP Helpers Sensors
- Recommended Disk Related SNMP Helpers Sensors
- Tips for MS SQL Server Monitoring using SNMP Helper
- Monitoring Activity and Load of Specific Processes Using SNMP Helper Pro
- Performing Silent Installations of SNMP Helper Freeware and SNMP Helper Pro
- Issues with SNMP Helper Pro / Packet Sniffer sensors caused by DEP settings
- SNMP Helper - Recommended Performance Counters (6)
- Recommendations for MS Exchange Server Monitoring using SNMP Helper
- Recommended CPU Related SNMP Helper Sensors
- Recommended Memory Related SNMP Helpers Sensors
- Recommended Disk Related SNMP Helpers Sensors
- Tips for MS SQL Server Monitoring using SNMP Helper
- Monitoring Activity and Load of Specific Processes Using SNMP Helper Pro
- SNMP Helper - Common Technical Problems (5)
- After installing SNMP Helper on a device I don't see any disk drive counters
- Why can't I access performance counters after installing SNMP Helper?
- Performing Silent Installations of SNMP Helper Freeware and SNMP Helper Pro
- The HELP function of my Paessler product does not work on Vista or Longhorn
- Issues with SNMP Helper Pro / Packet Sniffer sensors caused by DEP settings
Webserver Stress Tool
- Webserver Stress Tool (14)
- The Basics of Webserver Performance Testing
- Recording HTTP URLs for Complex Web Applications
- Book Recommendations for Webserver Load and Performance Testing
- Removing XP SP2's limitation on outgoing TCP connection attempts
- Load and Stress Testing SOAP Servers and SOAP Services
- Reusing data from the HTML code of a webpage (e.g. session id) for subsequent requests
- Avoiding "10048 (Address already in use.)" Errors in Webserver Stress Tool
- What are the benefits of using Webserver Stress Tool?
- Webserver Stress Tool: What it does - and what not
- Why does Webserver Stress Tool show errors when I run it against my server? When I access the website with my browser I don't see errors.
- The HELP function of my Paessler product does not work on Vista or Longhorn
- What to do with "This program has been damaged" messages when starting Paessler programs
- How can I define my own functions in URL Scripts for Webserver Stress Tool
- Achieving maximum HTTP requests per second with Webserver Stress Tool
General Networking
- General Networking (8)
- The Basics of Website and Network Monitoring
- A short introduction to IP Addresses
- The Basics of Webserver Performance Testing
- Removing XP SP2's limitation on outgoing TCP connection attempts
- SNMP, MIBs and OIDs - an Overview
- A short introduction to IP Addresses
- Installing the SNMP service on Windows NT/2000/XP/2003
- Testing WMI Requests
- General Networking - SNMP FAQs (10)
- Configuration Tips for Cisco Routers and PRTG
- SNMP, MIBs and OIDs - an Overview
- Solving "Could not connect" or "Error 10060" Messages when using SNMP
- Installing the SNMP service on Windows NT/2000/XP/2003
- How can I load/import my MIB files into PRTG or IPCheck?
- Security aspects when working with SNMP on Windows
- How do I install the SNMP daemon on Linux machines?
- Finding MIB files for specific devices or systems
- Using Paessler SNMP Tester to debug SNMP problems with PRTG
- Changing the SNMP Port Number on a Windows System