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Apache 2.4: The Major Enhancements

Apache 2.4: The Major Enhancements

It’s the first major Apache web server update since the 2.2 release in 2005. A key focus in the 2.4 release is improved performance which is delivered by way of multiple innovations.
MySQL: How Triggers act in Replication

MySQL: How Triggers act in Replication

Supposed you have a table that being updated by MySQL triggers and the DB is a master of replication, how do the triggers act in the environment? Here we might have a list of questions: Q1, Will the definition sql of the triggers be replicated? Q2, Will the data manipulation sqls triggered by triggers [...]
Configure CISCO VPN client on Ubuntu

Configure CISCO VPN client on Ubuntu

If you have ever tried the official Cisco VPN client, you might have known that it has a few major flaws and is not a good choice for you daily work. The solution came in the form of Maurice Massar’s vpnc – a relatively little-known and fairly unassuming application which does exactly as [...]
In Memoriam: 17 Tech Pioneers Who Died in 2011

In Memoriam: 17 Tech Pioneers Who Died in 2011

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.
Resize root partition for a running EBS EC2 Instance

Resize root partition for a running EBS EC2 Instance

As long as you are all right with a little downtime of the EC2 instance (in a few minutes), it is possible to extend the root partition on a running EBS boot EC2 instance, without needing to start a new instance.
vmtouch: File system cache diagnostics and control

vmtouch: File system cache diagnostics and control

From the topic above, you may have remembered one of our former post “what data is cached by operation system“. This is a similar tool asĀ Fincore, but it’s more powerful. It’s written in C and supports UNIX and unix-like systems.
Lucene and Solr 3.5 Released

Lucene and Solr 3.5 Released

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.
GSLB: How DNS-based one works

GSLB: How DNS-based one works

GSLB is short for Global Server Load Balancing, and is a tried and tested way of improving the availability and speed of Internet-based services. GSLB enables distribution of traffic across multiple sites, manages disaster recovery, and ensures that applications are consistently accessible.
Check Virtualization type for a running Linux

Check Virtualization type for a running Linux

Are you running VPS as a hosting solution? And do you want to know what kind of virtualization is it running on? Is it OpenVZ, V-server, Xen or UML, and how can I confirm this?
Nagios: Disable notifications from command line

Nagios: Disable notifications from command line

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