Archive for the ‘nagios’ Category

• Owl Nagios check plugin – Basic example inc. Source

  Date: 2010.05.17 | Category: ict, nagios | Response: 0

  

  Image by shannonpatrick17 via Flickr

  I wanted to make a nagios check for the OWL energy meter.

  First thing to note, don’t run any of the owl stuff while trying to run the check.

  Secondly, I included the source so feel free to use Visual C# to hack it.

  Third thing is, well, the OWL sensor software is very slow to respond, infact if you don’t get any response from it after a few minutes I recommend turning the kettle on.  The check may take up to 10 minutes (how lame is that?) so I recommend you increase your time outs.

  Finally I’m not familiar with Visual Studio, that’s why I did so little in Windows.  I just wanted an output I could work with in a nice dark environment.

  The check in bin\release\sensorapp.exe waits for a signal from the transmitter then echos it to command line.  Do with it what you will.  I’m pulling it into a simple .bat file.

  Grab the files

  

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• Installing the NRPE client, daemon and nagios plugins on debian

  Date: 2010.01.18 | Category: guide, install, nagios, nrpe, open source | Response: 0

  We assuming have already configured nrpe on your nagios box and you are sudo’d/root

  Steps:

  adduser nagios (set the password)
  cd /home/nagios
  wget http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.12.tar.gz
  * If this step fails visit http://www.nagios.org/download/addons for the latest URL

  tar -zxvf nrpe-2.8.tar.gz
  cd nrpe-2.12
  apt-get install gcc gawk openssl
  apt-get install make
  apt-get install libssl-dev
  apt-get install nagios-plugins
  ./configure
  make all
  make install-plugin
  make install-daemon
  make install-daemon-config
  echo “only_from = 0.0.0.1″ >> /usr/local/nagios/etc/nrpe.cfg
  * Remember to replace 0.0.0.1 with your the IP address of your nagios server

  cp init-script.debian /etc/init.d/nrpe
  chmod 700 /etc/init.d/nrpe
  /etc/init.d/nrpe start

  You may want to make this script run on start up
  update-rc.d nrpe defaults

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• Send_NSCA.exe example

  Date: 2009.08.11 | Category: nagios, nsca, send_nsca | Response: 0

  1. Make sure you edit your send_nsca.cfg accordingly

  2. Copy to c:\test.vbs

  Set oArgs = WScript.Arguments.Unnamed
  Set WshShell = CreateObject(“WScript.Shell”)
  ‘ 0 = hostname of local machine
  ‘ 1 = checkname
  ‘ 2 = result, 0 is ok, 1 is warn, 2 is crit
  ‘ 3 = notes from the output
  ‘ Written by John McLear of Primary Technology 2009
  exepath = “c:\program files\montitech\nc_net\config\send_nsca.exe” ‘ path to exe
  cfgpath = “c:\program files\montitech\nc_net\config\send_nsca.cfg” ‘ path to cfg
  host = “nagios.server.com” ‘host nagios server
  tab = Chr(9)
  prefix = “c:\windows\system32\cmd.exe /q /c echo “
  cmd= prefix & oArgs.Item(0) & tab & oArgs.Item(1) & tab & oArgs.Item(2) & tab & oArgs.Item(3) & ” | ” & chr(34) & exepath & chr(34) & ” -H ” & host & ” -c ” & chr(34) & cfgpath & chr(34)
  wscript.echo cmd
  ‘ Remove or rem out above line after debug
  WshShell.Run(cmd)

  3. Edit nagios.server.com to your nagios server name.

  4. Start – run – cmd – cscript c:\test.vbs Myhostname Mycheckname Status(seebelow)
  My Example: cscript c:\test.vbs mooocow simsdbversion 0 3.142

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