Troubleshooting the above warning message in Nagios: i) If you can specify the IP address of the host with its port number try specifying it that way instead of the host name ii) Check the the time that is set for the http check parameter and based on it try setting the -w (warning message) parameter (sample setting: command_line /usr/lib/nagios/plugins/check_http -H mywebsite.com -t 60 -w 55)

Monitor SQL Server from Nagios Instructions from Nagios website: URL: http://www.nagios.org/faqs/viewfaq.php?faq_id=156 The above link states that " .... So here's what I've done to have a way to connect to both SQL 7 and SQL 2000: 1. Download and install freetds from http://www.freetds.org. 2. Download and install sqsh from http://www.sqsh.org. 3. export SYBASE=/usr/local/freetds (or where ever your freetds is installed) (more…)

Configuring server host to respond to nagios host (monitor remote services) - CentOS Download nagios plugin and nagios-nrpe plugin in the server host (client that talks with nagios host) from nagios website. The files comes as .tar files and you need to configure them for their use. Move the files to /usr/src (more…)

What is Nagios? Nagios is a network monitoring tool which helps you identify problems in your network and fix them helping you offer extensive support. It is used to monitor both Windows and Linux/Unix based networks in addition to monitoring the web services, NNTP, POP, PING, processor load, disk usage, applications, switches, routers, firewalls, print services that run on it and the list extends. (more…)