Ohai plugins are very important components in chef client which aims to provide resource management automation on a server. The data discovered by Ohai plugins are describing the current state of the server and they will be used to maintain the server in a desired state. Each Ohai plugin discovers a specific pierce of information about the server such as cpu, memory, middleware etc.However, there are rare occasions(well I am a bit optimistic here) someone may find that the chef client run is hanging and it hangs at Ohai plugin discovery stage. Given every server has its own unique co...

There are two ways to install Oracle database on Linux :1). Using GUI; 2). Using response file. In this post, the method for using response file will be introduced.To install Oracle, please first get the Oracle database installation file ready. It can be downloaded from Oracle OTN. You need to have an Oracle account before you can download them.And there are three major components of the Oracle database installation : 1). The installation itself; 2). The network configuration; 3). Database creation. Each of the component can be completed with a response file. There are sample response files in...

Recently, YouTube has developed its new design, but is is still not officially released. But you can check out the new design now by following the steps below:1. Open http://www.youtube.com on your Chrome or Firefoc2. Press Ctrl + Shift and J in Chrome to open the Developer Tools and Press Ctrl+Shift and K in    Firefox3. On the bottom part of the development tool, you can type some commands there. Copy the following code and paste on the console window on the bottomdocument.cookie="VISITOR_INFO1_LIVE=ST1Ti53r4fU";4. Done, now refresh the YouTube page then you will be able to vi...