Sinopsis
"What is the best distribution for my needs? What do I need to know to administer a Debian system? What's different about Debian? What is the best way to handle something specific in Debian? I ran an Internet search on these questions and got millions of results. Now what do I do? Can someone help me?" The answer to the last question is yes. Answering the others requires a bit of background. This discussion is oriented towards those who are new to Debian. In it, we'll cover Debian's place among the various Linux distributions, project organization (and how that impacts administration), and licensing issues. Those who are already familiar with Debian may wish to skip ahead to the next chapter.
Debian is just one of many Linux distributions. Selecting which distribution is best for your deployment can be a rather daunting task. The reason for so many distributions is that the developers or sponsors of each have a different vision of which software should be installed by default, which software is appropriate for particular tasks, and how the system is best administered. This means that selecting a distribution that matches your purpose and preferences will make installation and administration easier.
Linux distributions can be broken down into three branches, named from their original distribution or their package managers: SLS, RPM, and DPKG.
The Softlanding Linux System (SLS) distribution, which evolved into the Slackware distribution, is one of the oldest. Distributions in this branch generally made minimal or no changes to the original software packages before including them. Distributions using this format generally provided no native software management and depended on third-party utilities for package management and administration. These utilities were readily available and often included, so this was not necessarily a disadvantage.
The Debian Packaging System (DPKG/DEB) was developed about the same time as the RPM, and has the same features, although they are implemented differently. DPKG refers to the original software packaging utility. This has been superseded by more flexible and user-friendly utilities, so this branch is often referred to by the extension used by the package files: DEB (.deb). Some distributions in this branch have corporate sponsorship (Ubuntu is the most notable) and thus, have a unified administrative utility, similar to SuSE's YaST for example. Others, such as Debian, depend upon third-party software to fulfill this function. The most common distributions in this branch are Debian and Ubuntu. Most of the others in the branch, such as Mint and BackTrack, are derived from one of these.
Content
- Debian Basics for Administrators
- Filesystem Layout
- Package Management
- Basic Package Configuration
- System Management
- Basic System Security
- Advanced System Management
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