You may have been using useradd or adduser to add new users or create new accounts in your Linux powered PC.

And sometimes you may have wonder about the difference between the two of them, well, the difference is also different depending on what version you are using.

Debian / Ubuntu

There are six different runlevels in Linux, there could be more than six, but for compatibility reasons six are the default.

I have used RedHat and Debian based Linux, more specifically Fedora and Ubuntu and Debian itself, I have noticed that there is a difference in the runlevels on this different Linux distributions.

Well but first let's define the runlevels:

Runlevels in Linux are seven and they are:

- 0 = halt
- 1 = single user
- 2 = CLI, multi-user, no net
- 3 = CLI, multi-user, networked
- 4 = open
- 5 = GUI, multi-user, networked
- 6 = reboot

I always prefer to use the package manager instead of compiling from sources, mmh maybe compiling is more creates more efficient programs, than using binaries, but in that case, we better use Gentoo or Sabayon, but if we are using Debian/Ubuntu, or Centos/Fedora, I still think is better to use binaries.

Hi,

This post is to look for volunteers to help me compile and install KDE4 on Centos 5, I worked on this by this time for three days (and one night :) ).. If there is any volunteer I can post in the forums the steps I take so far, and the error I got, so we can continue working together.

Thanks and let me know if you are interested in the comments.

Update: here are my notes about what I am doing, hope this may help anybody, read How to compile KDE4 on Centos

We the Linux users, are always interacting with Windows users, and one of the most difficult part of that interaction is the exchange of documents, that they create and edit mostly with Microsoft Office, and we use Open Office, and I think that even if they use OpenOffice, they will have access to the system's fonts, so, we need MS fonts installed in our Linux Operating System, in order to look at the documents in the same way they are looking at it.

Introduction

If you need to upgrade some packages from the CentOSPlus repository, and do not want to upgrade the whole packages from it, you can enable the priority plugin of CentOS.

What CentOS will do is to install from CentOS Plus only the packages that only exists in that repository, or upgrade the ones that you will allow to upgrade from it.

I am starting to work with Asterisk which is a Linux VoIP PBX, that lets you even send your minutes traffic, to VoIP gateways, and therefore one more time Linux is helping us lower the costs of maintaining an office.

As a first thing I tried to install it from repositories both on Debian and CentOS.

Let's start with Debian.

As I wanted to install Asterisk on a CentOS Server and I did not need all the stuff a Default Server installation comes with, I made this installation of a CentOS server, only with the basic packages, so I can later install only the packages I may need.

This also applies for an Apache, or xSQL installation, I made some shots of the packages selection screens so you can use them to install your CentOS base system.

First go through all the screens selecting your language, keyboard, time zone, etc. these are two of those screens.