Free Linux Tutorials

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

I’ll be trying 9.10 beta release this week and hopefully give you an update about it.

The Ubuntu  team has announced the beta release of Ubuntu 9.10  Desktop and Server editions, and the Ubuntu Netbook Remix. Codenamed  “Karmic Koala”

Ubuntu 9.10 Desktop Edition improves on the work of 9.04 to get you going  faster, with improved startup times and a streamlined boot experience.

Ubuntu 9.10 Server Edition integrates Ubuntu Enterprise Cloud setup in the  installer and provides improvements to system security with AppArmor,
including an AppArmor profile for libvirtd to further isolate virtual  machines from the host system.

As posted on openSUSE website dated Oct.1 2009, their latest release of 11.2 M8 is now ready for download and you can be one to first to test for bugs or any issues.

There are some important updates and additional packages included on the release.

Changes between openSUSE 11.2 Milestone 7 and Milestone 8 are:
* Linux 2.6.31 final
* more 11.2 theming is in place
* -lang packages are built as noarch
* bluez 4.5.1, PulseAudio 0.9.17
* Samba 3.4.1, php 5.3.0, postresql 8.4.1
* Firefox/KDE integration

For complete article:

http://news.opensuse.org/2009/10/01/opensuse-11-2-milestone-8-released/

1. Wonder why you can’t send email from your linux server?

2. Is your mail server or 3rd party email hosting provider requires authentication for your outgoing server to send out emails successfully?

3. Are you using a default sendmail email client on your linux box and wonder why your getting maillog errors such as this:

——-sample sendmail maillog error from my nagios server—————
Oct  2 17:03:54 nms sendmail[25657]: n9293qiw025655: to=<nagios@freelinuxtutorials.com>,

ctladdr=<root@nms.freelinuxtutorials.com> (0/0), dela0928, relay=smtp.freelinuxtutorials.com.

[216.200.145.17], dsn=5.1.1, stat=User unknown
Oct  2 17:03:54 nms sendmail[25657]: n9293qiw025655: n9293siw025657: DSN: User unknown
Oct  2 17:03:54 nms sendmail[25657]: n9293siw025657: to=<root@nms.freelinuxtutorials.com>,

Assuming you already have mysql server installed on your machine, the reason you are
installing phpmyadmin is to ease  your administration of  your MySQL like database creation and deletion, create/alter/drop/view tables and execute any SQL statements, privilege and trigger management, stored procedures, and backup/ maintenance

phyMyAdmin is a tool built in PHP to manage and administer your MySQL servers via your browser.

Requirements:

1.PHP
2.MySQL
3.php-mysql
4.gd/gd-devel
5. Apache

There are ways to sync two MySQL tables in a non-GUI method such as mysql triggers or by Maatkit’s MySQL Table Sync, but it’s not that user-friendly.

Of course, if  you want the GUI-type, there’s always the ever dependable phpMyAdmin or the NaviCat program.

On this tutorial, I will be implementing the “TableSyncer” tool, a ruby gem built that was originally detailed on http://code.google.com/p/ruby-roger-useful-functions/wiki/TableSyncer

This was tested on CentOS 5.3 32-bit running in Pentium4@3.0GHz 1G machine.

Here are the step-by-step procedure:

1. Download rubygem by “yum” or by source. This is how I built the rubygem
#wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgz
tar zxvf rubygems-1.3.5.tgz

I had the chance to work as a systems administrator in an e-commerce company and they have Linux dedicated servers leased/purchase from a hosting provider.
Dedicated servers compared to a shared hosting is you have full control of the box. You can do whatever you want with the box, implement services and of course a full root access with the machine.

With this company, we are hosting about 200+ websites and some of them are hosted in our  boxes run in Redhat Enterprise Linux. As part of administering the box is to have a full and incremental backup of our dynamic website files and database. Scheduled shell scripts are set on this machine and luckily, I was able to find one of the useful backup solution script that can be found in this site: