Latest Articles

User Management in Zenoss

by | October 2008 | Networking & Telephony Open Source

We should set up a user name for each person who will be using Zenoss, and all the users should log in using their user account, not as the admin user. Individual users can be granted the same privileges as the admin account. The security of the user accounts is important. Various roles and groups can be assigned to a user. In this article by Michael Badger, the following is discussed:

  • How to add new users and edit the properties of their user accounts
  • The various available roles and their privileges
  • Administered objects such as devices and systems
  • Creating and editing custom event views
  • Attaching alerts to users or groups of users
  • Creating alert escalations
  • Customizing alert messages
  • Setting a schedule for each alerting rule
  • Adding and editing groups and assigning users to groups
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Business Blogging On The Up - Technorati State of the Blogosphere 2008

by Paul Thewlis | October 2008 | MySQL Content Management Open Source PHP WordPress

"Technorati recently published its annual report, State of the Blogosphere 2008. As usual, it makes interesting reading, especially for those of us interested in business blogging.

The report shows that Technorati has indexed 133 million blogs since 2002. 1.5 million blogs have been updated in the last 7 days and 7.4 million in the last 120 days. These figures support my argument in the first chapter of my book, WordPress For Business Bloggers, that business bloggers should not be put off by the total number of blogs out there because, in fact, only a small proportion are active."

Read Business Blogging On The Up - Technorati State of the Blogosphere 2008 in full

Chatroom Application using DWR Java Framework

by Sami Salkosuo | October 2008 | AJAX Java Open Source Web Development

DWR (Direct Web Remoting), is an Open Source Java framework, licensed under commercial-friendly Apache Software License v2 for building AJAX applications. DWR's main idea is to hide AJAX implementation details such as XMLHttpRequest from developers. Developers can concentrate on developing the application and business objects and leave AJAX details behind the scenes where they belong.

In this article by Sami Salkosuo, we discuss a Chatroom application which demonstrates the use of DWR. The Chatroom sample application is a very typical multi-user chatroom. The functionalities of this sample include a list of online users, automatic refresh of chat text, and the ability to send messages to the chat room.

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Comparing Cursor and Set Approaches in Processing Relational Data

by Djoni Darmawikarta | October 2008 | MySQL PHP

MySQL introduced cursor in its release 5. You create a cursor to define a set of rows from one or more table that you want to access row-by-row sequentially. If your need is really to access the rows one at a time then use cursor. But a lot of data processing is actually set processing, and set processing is what relational database is best for.

This article by Djoni Darmawikarta compares cursor approach and set approach using various examples.

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Oracle SQL Developer Tool 1.5 with SQL Server 2005

by Jayaram Krishnaswamy | October 2008 | .NET

Oracle SQL Developer Tool is a stand alone program that connects to Oracle as well as third-party databases which can be used to perform a variety of tasks from running simple queries to migration of databases from third party vendor products to Oracle. Please review the following articles on the earlier versions 1.1 and 1.2: MS Access Queries with Oracle SQL Developer 1.2 Tool and Migrating MS Access 2003 Data using the Oracle SQL Developer 1.2.

In the present article by Dr. Jayaram Krishnaswamy the latest version of this tool [Oracle SQL Developer 1.5.0.53, IDE Version: 11.1.1.0.22.49. 33] will be described and some details of how to use this tool with SQL Server 2005 will be discussed. While the default installation is ready to connect to Oracle and Access databases the other third-party products such as SQL Server 2005, MySQL and Sybase require additional JDBC drivers. This article describes how you may connect to SQL Server 2005 and SQLExpress servers using the JDBC drivers. The Scratch Editor interface which accepts an SQL Statement from a 3rd party and translates into PL/SQL code is described. This feature was also available in the earlier version.

Read Oracle SQL Developer Tool 1.5 with SQL Server 2005 in full
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