On our Glassfish enviroment we started seeing the following error: socket:java.net.SocketException: Too many open files Its caused by a limit on the OS. To find out your OS limit type: # ulimit -n To check how many open files a […]
Nagios and Centreon online demo
Demonstrations of Nagios and Centreon Nagios XI (the new paid version): http://nagiosxi.demos.nagios.com/ user: nagiosadmin pass: nagiosadmin Centreon (My Faviroute) http://demo.centreon.com/ Go directly to it
WinHTTP AutoProxy Support
Our windows event logs are filling with useless messages. I went ahead and disable that useless services. Event Type: Information Event Source: WinHttpAutoProxySvc Event ID: 12503 The WinHTTP Web Proxy Auto-Discovery Service has been idle for 15 minutes, it will […]
Nagios check_con
I wrote a simple plugin to check the number of established connections to a windows server. Just execute: cmd /c netstat -an |find /i “estab” /c I also wrote a script for Windows Here is the code I have also […]
nagios tray
Nagstamon is a Nagios status monitor for the desktop. It connects to multiple Nagios, Opsview and Centreon monitoring servers and resides in systray or as a floating statusbar at the desktop showing a brief summary of critical, warning, unknown, unreachable […]
Monitor Varnish with Nagios
Varnish is an amazing reverse proxy product and it does its job very well, but how can we know that? Or even better how can we know it detected problems in the backed? Currently I monitor those server using hit/ratio […]
System Administrator Appreciation Day
System Administrator Appreciation Day July 29, 2011 (Last Friday Of July) 12th Annual A sysadmin unpacked the server for this website from its box, installed an operating system, patched it for security, made sure the power and air conditioning was […]