Archive for the ‘Nagios’ Category

  • MySQL Replication Monitoring

    Thursday, July 8th, 2010

    MySQL Replication is widely and we need to have strong replication monitoring for these things 1) To monitor if the replication is working. 2) To check the latency between the master and slave . 3) TO check the consistency between the master and slave , as sometime due to manual or master server crash , [...]

  • Nagios installation using scripts

    Wednesday, April 21st, 2010

    Introduction:- Make a nagios.sh file and copy the following contents,Run on server …..simple nagios will be installed now….. $vim nagios.sh #sh nagios.sh —————————————————— #!/bin/sh # Any Failing Command Will Cause The Script To Stop set -e # Treat Unset Variables As Errors set -u echo “***** Starting Nagios Quick-Install: ” `date` echo “***** Installing pre-requisites” [...]

  • How to install NRPE agent

    Sunday, April 11th, 2010

    Introduction:- Create a new nagios user account and give it a password. /usr/sbin/useradd nagios passwd nagios cd ~/downloads wget http://osdn.dl.sourceforge.net/sourceforge/nagios/nrpe-2.8.tar.gz Extract the NRPE source code tarball. tar xzf nrpe-2.8.tar.gz cd nrpe-2.8 If openssl is not installed then install it by using this command yum install openssl* If xinetd is not installed please install it by [...]

  • Nagios Error – key verification failed

    Sunday, April 11th, 2010

    Delete host entry from server1 /var/log/nagios/.ssh/known_hosts then add new known_hosts key from server1 /root/.ssh/known_hosts Thanks Manoj

  • How imports historical Nagios log files into the mysql database

    Friday, March 5th, 2010

    NDO Utilities:- The NDO utilities add-on, written by Nagios developer Ethan Galstad, is designed to output events and data from Nagios to standard files or to a Unix socket. It also comes with a module called NDO2DB that allows Nagios data to be written to a MySQL or PostgreSQL database The add-on is made up [...]

  • Nagios: ndomod: Still unable to connect to data sink

    Thursday, March 4th, 2010

    I have Nagios 3.x running perfactly, I want to load all alerts data to Mysql for future reference so we can create reports  accordingly. I have installed NDOUtils but after instalation I am getting the following error in the /var/log/messages nagios: ndomod: Still unable to connect to data sink.  14613 items lost, 5000 queued items to [...]

  • Nagios Architecture

    Sunday, January 24th, 2010

    Overview  Nagios is a host and service monitor designed to inform you of network problems before your clients, end-users or managers do. It has been designed to run under the Linux operating system, but works fine under most *NIX variants as well. The monitoring daemon runs intermittent checks on hosts and services you specify using [...]

  • Check URL String in Nagios

    Saturday, October 31st, 2009

  • Graphing In Nagios

    Saturday, October 31st, 2009

    Graphing Nagios services with pnp4nagios Nagios is a popular open source computer system and network monitoring software application. It watches hosts and services, alerting users when things go wrong and again when they get better. Some of the major features of Nagios are: • Over 50 bundled plugins for checking common protocols and services (HTTP, [...]