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What is Linux?

Like Unix, MacOS, Windows and many others, Linux is a computer Operating System (OS).

It provides the core program which runs on a computer to allow all other programs and software packages to access and use the physical hardware of the computer itself.

The fundamental difference between Linux and the other operating system mentioned is that Linux is free. Not only free in the sense that you may be able to download a copy and use it without paying any form of license, or fee to its developers. Free also in the sense that you may take the source code for Linux and modify it to your own needs. The only proviso is that any changes you make, must be made available to the rest of the community.

Because of the power and flexibility of Linux, and due to the availability of source code to anyone who needs it, Linux has been adopted by a wide range of users. From the home computer user who just wants to know more about the way their computer works, right through to universities and large government agencies such as NASA who use Linux in many of their research programs.

Historically, Linux was created as a hobby by a young student, Linus Torvalds, at the University of Helsinki in Finland. Linus had need of a small UNIX-like operating system and decided to develop his own. He began his work in 1991 when he released version 0.02 and worked steadily until 1994 when version 1.0 of the Linux Kernel was released.

Since its initial release to the world by Linus, huge amounts of development work have continued. Linux should be viewed as an ongoing development, as it is now actively developed by a large group of individuals, with upgrades and changes being overseen by Linus.

There are few hardware platforms which do not currently have a Linux version available, and those that don't will almost certainly have someone developing a ported version of the kernel right now!




What is Slug?

SLUG is the Shropshire Linux User Group, who surprisingly enough, are a group of people based in and around Shropshire who use Linux. We come from a wide range of backgrounds and ability levels. However we have one common strand that links us, that is:-

"The desire to learn and use Linux in better ways, and to share our discoveries with others who share our quest for knowledge"...

 

If you would like to join us then click here for contact and joining details...
 Slug News
next meeting : See events section for details

updated : 04/03/08 11:28:23



 Linux News
OS Roundup: BSD Bug Emerges From Chrysalises
<b>Serverwatch:</b>"Paul Rubens How long does it take to spot a bug in an operating system? The answer, it seems, can be as long as 33 years. At least, that was the case with a recently discovered bug in the yacc parser generator originally developed at AT&T back in the 1970s and discovered recently by OpenBSD developer Otto Moerbeek."

Simple Multiple-Steam Output Redirection With Zsh On Linux and Unix
<b>The Linux and Unix Menagerie:</b>"Following up on yesterday's post regarding using zsh's extended globbing functionality, today we're going to look at another feature supported by zsh, that can't be done nearly as easily in most other shells. Today we're going to look at some unique ways you can manipulate input and output redirection, even with multiple streams, while avoided a lot of extra code, and maybe a temp file or three."

Setting up DRBD in an Open Source SAN
<b>SearchEnterpriseLinux:</b>"As we established in part one of this series on open storage area networks (SANs), building an open source SAN provides a cost-effective alternative for companies with a tight budget. Now that we've established the merits and some of the important considerations in creating open source SANs, we'll explain how to set up the Distributed Replicated Block Device (DRBD) service, which allows for replicated storage in a SAN."

Attack Code Published for DNS Flaw
<b>ZDNet:</b>"Exploit code for the flaw, which allows the insertion of malicious DNS records into the cache of the target nameserver, has been added to Metasploit, a freely distributed attack/pen-testing tool."

SCO Group: Its Future is All Used Up
<b>Network World:</b>"I've now been writing about SCO for five years -- how time does fly when you have someone to despise. In my first column about SCO's decision go into the lawsuit business rather than having to do all the hard work of making a product that someone might want to buy, I thought that someone would just buy the slime off. I was wrong -- I guess there is some truth to the punch line of the old joke that "there are just some things a lawyer won't do." I guess IBM's lawyers could not stomach the idea of rewarding such repulsive behavior."

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