Free Linux Tutorials

One of the most important procedure in setting up master-slave replication on Mysql database successfully is to have a consistent dump or backup of database(s) from the master server by locking all tables during mysqldump so write access is not possible.

master log file and log position will be taken from the master and configure it on the slave server. But it’s not always good times. There are some bad times too. And one of it is sudden stop of your slave and no longer synching with the master database.

Tomcat,known as Apache Tomcat or Jakarta Tomcat is a servlet container developed by ASF or Apache Software Foundation. It implements the JavaServer Pages (JSP) and Java Servlet specifications from Sun Microsystems. To make it simple, it is use as a java http web server environment where you can run your Java code.

This is a brief tutorial on installing and running tomcat in Linux.

Prerequisites:
Java SDK should be installed.

Tested in CentOS 5.X

1. Download Java SDK from sun.com website

http://java.sun.com/javaee/downloads/index.jsp

In this tutorial, we will be using Java EE 5 SDK

Fedora 12 has been released,the latest innovative Linux distribution from the Fedora Project, a global, collaborative partnership of free software community members sponsored by Red Hat.

Fedora is a leading edge, free and open source operating system that continues to deliver innovative features to many users, with a new release about every six months. We bring to you the latest and greatest release of Fedora ever, Fedora 12! We have several major new features with special focus on desktops, netbooks, virtualization and system administration.

In relation to this release, I installed Ubuntu 9.10 on my laptop and no issues on wifi or audio of whatsoever using the linux generic, as reference to the previous release as I posted on my old post –>http://www.freelinuxtutorials.com/quick-tips-and-tricks/looping-soundno-audioslow-audio-playback-on-ubuntu/

Oct 29,2009

“The latest version of Ubuntu 9.10 (Karmic Koala) has been released. Offering numerous enhancements for both desktop and server environments, this release includes notable features like Ubuntu Enterprise Cloud images, the Ubuntu One “personal cloud”, and Linux kernel version 2.6.31. Please be sure to use a release mirror close to your geographic location to help reduce the stress on Ubuntu’s primary servers; using BitTorrent for downloads can help alleviate the load even more. If your organization has adequate network and server resources, please consider hosting a mirror as well.”

I’ve been working with the servers most of the time, and few days ago, i had free time to test ubuntu on one of my laptop, it’s not new but not too old either, it’s dual core MSI VR320 and guess what it’s kinda frustrating to have issues on this laptop upon installing ubuntu 8.04 and 9.04.

with 8.04, wifi (using WPA-PSK at home) is not working and sound is looping
with 9.04, wifi is ok but audio playback is damn too slow.

Obviously, this is really an old procedure, actually this is my documentation way back early 2006 when it’s my first time to work with asterisk. This procedure was implemented before in about 30-50 call center agents using softphones and it quite worked well.

So many things have changed, as we all know, from asterisk 1.2 to asterisk 1.6 , and Asterisk Management Portal is popularly known now as FreePBX. Other packages were also updated now, many changes but still asterisk is standing there as the best open source telephony system.  We had many community and commercial PBX softwares today that are asterisk-based, that’s how big asterisk right now comparing back 2006

There’s an easy way of installing Apache, Mysql and PHP and it’s via yum. You can install or update httpd,mysql-server and php, php-mysql and some minor changes on your configuration files and you’re good to go. Well, the procedure below is one way to install also, if you’re quite bored and want to develop your sysadmin skills.

I. Operating System Installation

1.    The typical type of installation is thru  CD-ROM or DVD. If you want network install, you should have a CentOS boot disk to boot the server

date:Oct. 7, 2009

The Debian Release Team is pleased to announce that it sees the port of
the Debian system to the FreeBSD kernel fit to be handeld equal with the
other release ports.  The upcoming release codenamed ‘Squeeze’ is
planned to be the first Debian distribution to be released with Linux
and FreeBSD kernels.

The kFreeBSD architectures for the AMD64/Intel EM64T and i386 processor
architectures are now release architectures.  Severe bugs on these
architectures will be considered release critical the same way as bugs
on other architectures like armel or i386 are.  If a particular package
does not build or work properly on such an architecture this problem is
considered release-critical.

KDE 4.3.2 Stabilizes Free Desktop

KDE Community Ships Second Translation and Service Release of the 4.3 Free Desktop, Containing Numerous Bugfixes, Performance Improvements and Translation Updates

October 6th, 2009. Another month has passed since the release of KDE 4.3.0, so today the KDE Community announces the immediate availability of KDE 4.3.2, a bugfix, translation and maintenance update for the latest generation of the most advanced and powerful free desktop. KDE 4.3.2 is a monthly update to KDE 4.3. It ships with a desktop workspace and many cross-platform applications such as administration programs, network tools, educational applications, utilities, multimedia software, games, artwork, development tools and more. KDE’s award-winning tools and applications are available in more than 50 languages.

Do you want a free Web Conferencing? Then you can try DIMDIM.
Dimdim lets anyone deliver synchronized live presentations, whiteboards and web pages and share their voice and video over the Internet – with no download required

Official Dimdim Website:  www.dimdim.com

You can try the Open source Community Edition.

This is based on Dimdim Installation Procedure for CentOS

This step-by-step procedure was tested and implemented successfully on CentOS 5.2 32 bit (64 bit won’t work since the dimdim installation pack is for 32-bit only)

Requirements