Following the availability of MySQL 5.5 on Oracle Linux 6 with the Unbreakable Enterprise Kernel, MySQL 5.5 is now also available on Red Hat Enterprise Linux 6 (RHEL 6) and Oracle Linux 6 with the Red Hat compatible kernel.

MySQL users can download MySQL 5.5 Community Edition binaries for Oracle Linux and Red Hat Linux 6 here.

MySQL customers can rely on Oracle Premier Support for MySQL when using the MySQL database on either Oracle Linux or Red Hat Enterprise Linux 6.

In addition to offering direct Linux support to customers running RHEL6, Oracle Linux 6, or a combination of both, Oracle also provides Oracle Linux 6 binaries, update and erratas for free via http://public-yum.oracle.com.

As you may expect from open source world thingy, almost every Linux distribution has developed it’s own way to manage our favourite RDBMS service. Yet none is perfect, or even some of them seems to not work in real server scenario1.

In this post I’m trying to compare and point out most annoying aspects of initialization scripts that I had to face in production.

In ‘old days’ probably all Linux distributions used to start and stop services using so called init scripts usually written in Unix shell (sh or Bash). But situation is not so simple these days anymore.

Folks started to think about improving things, like making system initialization faster by parallelization of starting services. So Upstart was developed in …

The open source community should feel a little safer from software patent attacks today. The Open Invention Network (OIN), a consortium of Linux contributors formed as a self-defense against software patents, has extended the definition of Linux so that a whopping 700 new software packages are covered, including many developer favorites.

Just one hitch: The new definition also includes carve-outs that put all Linux developers on notice that Phillips and Sony reserve the right to sue over virtualization, search, user interfaces, and more.

read more

Build A Free, Full-Featured Mail Server On Gentoo Linux With iRedMail

We're going to set up a free, full-featured mail server on Gentoo Linux, all mail service related components are free and open source, and you own all data. The installation process is extremly easy and smooth.

Do you get write laziness in the command line everything what you need to connect to a MySQL server every time?

It may take less than minute, but sometimes one minute is vital (especially if we’re near the end of the world):

ivancp@ubuntu$ mysql -u root -p -h mysqlhost database

When we are hurry, these commands often fail several times per minute.

The solution: we can create shortcuts with bash alias commands in file ~/.bashrc :

# File ~ /. Bashrc
 
# Command "my" to connect to a local server
alias my='mysql -u root -p'
 
# Command "my2" to connect to a remote server
alias my2='mysql -u root -h 192.168.1.56 -p'

Next time if you want to access the local server just type the command my [database name] , there only ask for database password. You can use any command aliases, I prefer  “my” and “my2” they are short and useful.

But if you have several servers comes …

Again, I have moved to a new hosting provider after my free-tier with Amazon EC2 expired.  As usual I was looking for a good VPS provider with a decent price, providing good support and in particular a provider supporting FreeBSD, my favorite OS for server (for desktop I still prefer GNU/Linux.)

This time I have carefully reviewed many options and have finally settled with RootBSD, one of the reputed VPS hosting providers if you are choosing FreeBSD as your server OS.  One of the prime reasons for choosing FreeBSD is its performance, stability and the FreeBSD ports system.

Although my …

Note: I’ve decided not to use Veewee due to silly compatibility issues for now.

Quoting from Vagrant’s web site:

Vagrant is a tool for building and distributing virtualized development environments. By providing automated creation and provisioning of virtual machines using Oracle’s VirtualBox, Vagrant provides the tools to create and configure lightweight, reproducible, and portable virtual environments.

A complementary technology called Veewee makes building VirtualBox VMs easier by automating away a lot of manual steps. Marius Ducea has a great blog post on how to use it.

My observations:
1. According to Vagrant’s web site, it should work on Windows. I’ve …

We’ve seen the rise of open source software in the enterprise and also beyond the IT industry, but the real keys to openness and its advantages in today’s technology world — where efficient use of cloud computing and supporting services are paramount — exist in open application programming interfaces, or APIs.

Open source software continues to be a critical part of software development, systems administration, IT operations and more, but much of the action in leveraging modern cloud computing and services-based infrastructures centers on APIs. Open APIs are the new open source.

Read the full story at LinuxInsider.

I was doing some research on Percona Server, and came across this great tip by Baron: if you are using Oracle’s MySQL and want to test out and learn new/improved features that are present in Percona Server, you can just stop the mysqld instance, extract Percona Server binary from its rpm/deb package or tarball file, swap the binary, and do a successful restart. You can then do a test drive, kick the tires, learn and observe to your heart’s content. Swap the original mysqld back after you are done, as necessary.

I tested it and it worked great for me. Specifically, I did the following:
1. sudo /etc/init.d/mysql(d) stop
2. sudo cp /usr/sbin/mysqld /location/mysqldFromOracleOrWhatever
3. sudo cp /perconaBinaryDirectory/mysqld /usr/sbin/mysqld
4. sudo /etc/init.d/mysql(d) start
5. Test …

The Oracle Linux and Virtualization Documentation Team is seeking an experienced Technical Writer
with a focus on writing documentation for the Oracle Linux product. (The MySQL Documentation Team is part of that group as well.)

Applicants should be located in either Ireland, the UK, Sweden, Norway, …