I installed Ubuntu 11.04 on my DELL inspiron mini 10 last night. A message poped out saying ‘The hardware does not support Unity’ when the machine rebooted after the installation finished The reason is that the Unity (the new desktop UI adopted by Ubuntu in the latest version) can only run on the supported hardward … Continue reading Unity 2D
Category: Linux
Nagios XI: A restriction
One of the disadvantages of using Nagios XI is that it does not allow you directly modify the configuration file, like /usr/local/nagios/etc/services/*.cfg, /usr/local/nagios/etc/hosts/*.cfg. Well, let me make it more accurate. I should say that you are able to directly modify the configuration files, but your modifications will be overwritten by NagiosQL when you configured something … Continue reading Nagios XI: A restriction
Nagios XI: Monitoring Cisco 877 ADSL Router
We have couple Cisco 877 ADSL routers in some remote offices. To verify the ADSL line works properly, we add the routers into our Nagios monitor list. SNR (Signal to Noise Ratio) and Attenucation are two key measurements that tell you the performance of the ADSL line: SNR reflects the signal strength to the level … Continue reading Nagios XI: Monitoring Cisco 877 ADSL Router
Nagios XI: Some Tricks
I have been playing with Nagios XI since last week. Here are some tricks I have found so far: 1) The default root password is nagiosxi. The default root password for the Nagios XI VMware virtual appliance is nagiosxi, which can be found on the login screen. 2) ‘$’ is considered as an illegal character. … Continue reading Nagios XI: Some Tricks
Nagios XI: Introduction
My company decided to use Nagios XI instead of Nagios Core. Nagios Core is open source and can be used for free. Nagios XI is not a free tool, which means you have to pay for the license. And the price is determined by the hosts/nodes you intend to monitor. The Nagios XI is actually … Continue reading Nagios XI: Introduction
Jackie Chen's IT Workshop 