Check the freshness of passive checks

Posted by on Jan 30, 2013 in Nagios, NetEye | 0 comments

In case of passive checks as  for example SNMP traps or notifications via email from external checking systems, it is not always possible to know if these controls are correctly performed.

This is the reason that made us decide to look for a solution able to ensure that the passive checks are being regularly provided by external applications. To reach our target we opted for the freshness check of Nagios, that as the word itself is suggesting is a check that verifies the freshness of the results provided.

Nagios, in fact, supports freshness checks on host and service passive check results. The freshness check aims to ensure that host and service checks are being passively  provided by external applications on a regular basis. In particular, it will be guaranteed that the passive checks are registered in the expected time period. For example, if you have a daily check at 8 a.m., the freshness check will verify that the results are received exactly in that configured time frame.

How does it work?

Nagios performs periodic checks to verify the passive check results for all those hosts and services that have the freshness check enabled.

  • A “freshness” threshold is calculated for each host or service
  • For each host/service, the age of its last check result is compared with the freshness threshold.
  • If last check result is received on a time above the freshness threshold, the check result is considered “stale”.

How is the Freshness Check enabled?

Here the procedure to follow to enable the freshness check:

  • Use the check_service_freshness and check_host_freshness directives, that are already enabled by default in NetEye
  • Use service_freshness_check_interval and host_freshness_check_interval options to tell Nagios how often it should check the freshness of service and host results – configuration already enabled by default in NetEye
  • Enable freshness checking on a host- and service-specific basis by setting the check_freshness option and activating the checkbox near the same option in Monarch
  • Configure freshness thresholds by setting the freshness_threshold option in your host and service definitions
  • Configure the check_command option in your host or service definitions to reflect a valid command that should be used to actively check the host or service when it is detected as “stale”
  • The check_period option in your host and service definitions is used when Nagios determines when a host or service can be checked for freshness, so make sure it is set to a valid timeperiod
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Join us at this year’s CeBIT

Posted by on Jan 28, 2013 in EriZone & OTRS, NetEye, Network Traffic Monitoring, ntop, Real User Experience Monitoring | 0 comments


We will participate in this year’s CeBIT by introducing all new NetEye features at our stand located in Hall 6, Block F16, Stand 133. What you might expect: Practical examples of the integration of successful projects like the network traffic monitoring with ntop, the network discovery with NeDi or all the latest features on Asset and Inventory Management as well as recent developed Nagios plugins or the Service Desk with OTRS .

Georg will also held a presentation in the Open Source Park on Real User Experience Monitoring in cloud scenarios, explaining the results obtained by the integration of the network traffic monitoring of ntop with NetEye. By visiting our stand you will furthermore have the opportunity to meet NeDi expert Michael Schwartzkopff of sys4.

NetEye at CeBIT 2013 – 9th of March 2013 – Hannover fair
Hall 6, Block F16, Stand 133 – directly in the Open Source Park

Fix an appointment and win 3 iPad Mini
We offer, of course, free tickets to all customers, partners or for those who are interested to visit our stand. If you want to join us just request your ticket. All those who will schedule and appointment for meeting us at CeBIT will also participate in a 3 mini iPad drawing contest organized together with our partners from Medialinx AG.

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SyslogView Fix release 2.0.7

Posted by on Jan 22, 2013 in NetEye Updates, Syslog | 0 comments

This release contains a minor fix in case the Rsyslog Server creates a log file without any content. This very uncommon situation was leading in the syslog – parser process to a warning – notified via email – that a zero division occurred since there are no rows of logs to parse.

Details of the output: Runtime error (func=(main), adr=3): Divide by zero

Package to update: neteye-syslogview

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Good opportunities for NetEye on the growing Polish market

Posted by on Jan 15, 2013 in NetEye | 0 comments

Grzegor Walicki, CEO of SPS, foresees a considerable market potential in NetEye also for the Polish market

The growth in Poland has in recent years been one of the highest in Europe, reaching in 2012 an increase of over 2%. The value of the IT market in the software industry even under the difficult circumstances of 2012 accounted for an increase of 7% and 8% for all service related offers. The IT industry will continue to grow in the coming years compared to many other sectors.

Evaluating these circumstances we saw good market opportunities also for the area of IT-System Management and Open Source based solutions like NetEye. As a first step we signed a partnership with local IT specialist SPS, headquarteerd in Warsaw. Thanks to this cooperation we are expecting to accelerate our market entry, well considering that nevertheless the Polish market is less fragmented than most European realities in this industry, the collaboration with local partners however offers the possibility of obtaining important references in order to quickly create the right conditions for a sustainable business development. Grzegorz Walicki, CEO of our partner SPS foresees a considerable market prospect for NetEye: “Poland is one of Europe’s fastest growing IT markets, with IT services driving growth for the sector as a whole. With NetEye Würth Phoenix developed a solution which in its characteristics suits ideally for the Polish market and has good chances to challenge established local as well as international players in the business area of IT System Management”.

Poland as partner country at the CeBIT 2013

Poland is also the official partner country at this year´s CeBIT. We see in it an appropriate occasion to present our experiences in the area of IT System Management solutions in general and NetEye in specific at the main European IT-trade show. All information related to our NetEye presence at the CeBIT will follow soon. We´ll keep you up to date!

 

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