Paessler Blog
Archive for Category "IPCheck"
2007-Oct-19
Handy SNMP resources on the Cisco website: Cisco MIB Listings, MIB Locator, and OID Translator
Recently we came across the following three pretty notable pages provided by Cisco, allowing users to find Cisco MIBs and to discern OID segment almost at a glance.2007-Aug-29
Negative PING times on AMD Dual Core Processors - Solved
[UPDATE Oct 2010] There seems to be an easier solution than the one mentioned below: By using the "/usepmtimer" boot.ini flag (simply add this line to boot.ini) you can change the time source for QueryPerformanceCounter from TSC to the PM timer which is a global time source. Note: This information was taken from here and http://wiki.ljackson.us/Negative_Ping_Time#BOOT.ini_Solution, but we did not test it ourselves on AMD CPUs). -------------- In recent weeks we have received reports about negative PING time measurements (e.g. -5 ms) from users of our monitoring products. "Great", we thought, "our software has overcome the laws the physics and is able to received network packets before they are actually sent". But now there are more and more hints showing up around the Internet that we will not receive the Nobel price in physics...2007-Aug-20
New Version 5.4.1 of IPCheck Server Monitor adds WMI Sensors and Vista Support
Today we have released the latest version 5.4.1 of IPCheck Server Monitor. The main new feature is support for five new sensors based on WMI2007-Jul-10
Latest IPCheck beta version adds WMI sensors and support for Vista
The latest beta for IPCheck Server Monitor version 5.4.1 mainly adds two new features: WMI sensors and Vista support.2007-Jul- 6
How to set up audible notifications for PRTG and IPCheck using speech synthesis software
2007-Jul- 4
GameData, Inc. keeps Counter-Strike community website up and running with Paessler PRTG and IPCheck
2007-Feb-19
Changes in the Daylight Saving Time in the USA and their impact on IPCheck and PRTG
The U.S. Energy Policy Act of 2005 extended Daylight Saving Time (DST) in the U.S. by approximately four weeks. As a result, beginning in 2007, DST will start three weeks earlier on March 11, 2007, and end one week later on November 4, 2007, resulting in a new DST period that is four weeks longer than previously observed. If your computer runs on an American or Canadian Timezone setting this situation affects your computer and software.2007-Jan-24
Setting up SQL Server Sensors for MS-SQL, MySQL and Oracle with IPCheck Server Monitor
Using the SQL Server sensors you can natively monitor the most used SQL servers: MySQL, Microsoft SQL, and Oracle SQL. Basically, the sensors monitor whether the database server process- A: accepts connections and
- B: processes requests and
- C: returns an expected result when executing a custom SQL command.
2007-Jan- 8
"This program has been damaged..." messages when starting Paessler programs
If you receive the message "This program has been damaged, possibly by a bad sector of the hard drive or a virus. Please reinstall it." when starting IPCheck Server Monitor, PRTG Traffic Grapher or Webserver Stress Tool then you either have a virus or trojan on your computer or a malfunctioning anti-spyware software.2006-Dec-27
Updating IPCheck Remote Probes Remotely
Since the remote probe software version needs to match the IPCheck host software version it is always necessary to update the probe's software each time the host's software is updated. In order to automate the process and to update the software in such a manner that the actual users working on the target machines barely notice the process, the following steps can be taken for a "silent" install.2006-Dec- 5
New beta version of IPCheck Server Monitor
We have published a new beta of IPCheck Server Monitor that adds a couple of new and interesting features.2006-Nov-24
Monitoring non-integer SNMP values with IPCheck Server Monitor
We have published a new article in our knowledge base that explains how you can use the Custom Script sensor of IPCheck Server Monitor to monitor non-integer values via SNMP.2006-Nov-24
Paessler MIB Importer V1.0 Beta
Now there is a brand new version of our MIB Importer Tool available on the website. With this software you can easily import MIB files and convert them into OID libraries for PRTG Traffic Grapher and IPCheck Server Monitor.2006-Oct-12
Minimizing diskspace usage for monitoring data by using NTFS built in compression
The monitoring databases of PRTG Traffic Grapher and IPCheck Server Monitor can become quite large for installations with many sensors. E.g. we have a monitoring database of some 3 GB for one of our internal test installations. To minimize actual disk space usage it is a good idea to enable the file system compression of the Windows operating system (available only on NTFS drives). This way the monitoring data is stored as compressed data on the disk and you save about two thirds of space.2006-Oct- 9
IE7 Is Coming This Month... Paessler Products Are Ready!
IE7 will available later this month and in the coming weeks it will be installed automatically (!) on all Windows systems on the planet via the automatic update service. Are you ready? At least your installations of Paessler software products are!2006-Aug-25
Directory Traversal Vulnerability Issue Fixed for IPCheck Server Monitor
We have published a new version of IPCheck Server Monitor that fixes a security issue in the webserver: By Using URLs with special characters a so-called "directory traversal" was possible. This fact could be exploited to gain access to files on the disk which IPCheck is installed on.2006-Aug-17
Analyzing a Slow Exchange 2003 Server
You have been there: All servers seem to be getting slower over time. Always. But is it really the problem? Does it really hurt your business? And what can you do against it? For Windows servers there are multiple reasons for a slowdown over time:- fragmented disks
- overflowing TEMP folders
- processes that eat more and more RAM
- too many processes on a system or cpu-intensive processes
- hardware problems
- faulty software
2006-Aug-16
Monitoring System Parameters like Memory, CPU and Disks on Linux Systems via SNMP
Every other day users of our monitoring products PRTG Traffic Grapher and IPCheck Server Monitor ask us how they can monitor system parameters like CPU load, memory load, swap file size or disk usage on Linux and Unix systems. Today we have published a new step-by-step article in our knowledgebase that explains how to set up system parameter monitoring for Linux systems. This screenshot shows part of the list of available sensors for a Linux system (using IPCheck Server Monitor):
2006-Aug-14
Using Multiple-Host-PINGs to monitor the performance of a WAN connection
The basic idea of this new custom sensor for IPCheck Server Monitor is that in many cases sending PINGs over a WAN connection to just one device is not a very reliable means of testing the connection. Every once and a while you will see dropped packets due to network overload, server trouble or whatever. On WAN connections you never know what happens between you and the server. Thus when monitoring just one distant system a number of lost PINGs don't tell you too much about the performance of the connection inbetween.2006-Aug- 8
Installing the NET-SNMP daemon on Debian Linux
In order to monitor system parameters like memory and CPU load on Linux systems we recommend to install an SNMP daemon on the system. Then you can monitor the parameters using SNMP. Today I found a tutorial on the debianhelp website that explains in detail how you can install the NET-SNMP service on a Debian Linux system. As soon as this service is installed and configured you can monitor system information like CPU load on a Linux system using PRTG Traffic Grapher and IPCheck Server Monitor.2006-Jul-11
Freeware and Standard Edition of IPCheck massively upgraded
Today IPCheck's lead developer Roland has released V5.3.2 of IPCheck Server Monitor which dramatically enhances the features available for the users of the Freeware Edition and the Standard Edition. These new enhancements give the Freeware a lot more value. Until now Freeware and Standard users were limited to six basic sensor types, now they can use all sensor types that IPCheck Server Monitor offers. And we put even more on top: Instead of three sensors the Freeware users can now use up to five sensors.2006-Jun-20