Along with Steve Jobs and Dennis Ritchie, 2011 marked the passing of many computer visionaries and technology pioneers. The computing industry came of age in the 1950s, and many of the individuals who laid the groundwork for modern computing, smart electronics and the Internet are now in their 80s.

The Lucene project management committee has announced the availability of Apache Lucene 3.5.0 and Apache Solr 3.5.0. Lucene is a high-performance, full-featured text search library. Solr is a standalone search server that uses Lucene at its core for indexing and search.

With the commands below, Nagios can be controlled in command line mode. It’s helpful for your automation work. To disable notifications

This is a forwarded copy from Steves Souders‘ blog site. These rules are the key to speeding up your web pages. The key insight behind these best practices is the realization that only 10-20% of the total end-user response time is spent getting the HTML document to the browser. We need to focus [...]

The –status command line option is used to query running searchd instance status, using the connection details from the provided configuration file. It tries to connect to the running instance using the first configured UNIX socket or TCP port. On success, it will query for a number of status and [...]

Where can I find the public IP addresses that used by Amazon AWS? I think you might have such a question if you use Amazon heavily for your infrastructure. Here comes a post from Amazon’s official websites, it answers this question perfectly.

S3cmd is command line tool for uploading, downloading and managing data in Amazon S3. It’s written in Python, and ideal for scripts, automated backups triggered from cron, etc. S3cmd is an open source project and is free for both commercial and private use.

When using Amazon, your payment covers only what you use — that’s system resources and network resources based. There is no minimum fee. Also you can estimate your monthly bill using AWS Simple Monthly Calculator.

Red Hat on Wednesday (10, Nov. 2010) released version 6 of its Red Hat Enterprise Linux (RHEL) distribution. RHEL 6 has more than 2,000 packages, and an 85 percent increase in the amount of code from the previous version, said Jim Totton, vice president of Red Hat’s platform business unit. The [...]

Note: This is a copied version from IOZone official document IOzone_msword_98.pdf. Definitions of the tests Write: This test measures the performance of writing a new file. When a new file is written not only does the data need to be stored but also the overhead information for keeping track of where [...]