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Subject: Not your average client/server network
Date: Wed, 26 Jul 2000 22:51:11 -0500
From: "NW on Linux" <Linux@bdcimail.com>


NETWORK WORLD FUSION FOCUS: PHIL HOCHMUTH 
on LINUX
Today's focus: Not your average client/server network
07/26/00

Dear Russell Coker,

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Today's focus: Not your average client/server network
---------------------------------------------
By Phil Hochmuth

Progeny Linux, which just emerged last week, has been working for the 
last few months on a system it calls Linux NOW - Network of 
Workstations. It?s exactly what the name implies: a system of 
decentralized workstations that share a common file system and 
distribute processing tasks, creating an entire network without a 
central system server. 

The model for this type of system is not new. Groups of workstations 
have been tied together in educational ranks for research purposes for 
many years. Linux NOW, however, is the first commercial implementation 
of this networking model. The attraction of the system, developers say, 
is its scalability. Essentially, it is a network that becomes more 
powerful, stable and productive the more user machines are added - 
where in many networks, the opposite is more often true. Over 1,000 
workstations can be networked together this way.

Based on the Debian Linux distribution, the system is unlike standard 
client/server or host/terminal environments in that there is no one 
server or mainframe that users log on to and where common system files 
are stored. Instead, the file system, kernel, processing workload and 
network storage for all users is distributed throughout all the 
machines on the network. This design, in essence, could provide the 
ultimate system of load balancing and system clustering.

In systems such as Linux NOW that were used in the past, the biggest 
headaches were security and the integrity of the distributed file 
system. Progeny is trying to address some of these problems by creating 
a single network "image," or an illusion of a centralized computer 
system. The code, kernel and file system for it is really distributed 
across hundreds or thousands of Linux workstations.

One of the main challenges Progeny is trying to address is security. In 
a decentralized network of distributed workstations, every client is 
actually a part of the "server,? giving users a multitude of access 
points to important system and configuration files.  While an answer to 
this security conundrum is still in development at Progeny, the 
company?s goal for Linux NOW is to have a network in which users to log 
on to a ?system? where user rights and access policies are enforced, 
thus keeping important system files behind a protective curtain. 

Ian Murdock heads Progeny. Murdock founded the Debian Project (the name 
Debian, incidentally, is derived from the first names of Ian and his 
wife Debra). The company is one of the more open-source-oriented Linux 
start-ups to come along. Debian has long been one of the few Linux 
distributions to hold out from widespread commercialization, which has 
kept venture capitalists away from the technology in the past. However, 
the company?s technology was enough to attract the interest of Bruce 
Perens, who is chairman of the board at Progeny.  Perens, a 
high-profile leader of the Debian Project, has worked for several years 
in helping to bring open-source technology into the world of commercial 
software. Progeny aims to ship Linux NOW by year-end. 

To contact Phil Hochmuth: 
------------------------- 
Phil Hochmuth is a writer and researcher for Network World, and 
a former systems integrator. You can reach him at 
mailto:phochmut@nww.com.

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Got a technical question related to Linux on your corporate 
network? Post it at Experts Exchange on Fusion at 
http://nwfusion.experts-exchange.com/. Another network 
professional may have the solution to your problem.

Read more about Progeny Linux:
http://www.progenylinux.com

Find out more about Debian, the technology behind Linux NOW:
http://www.debian.org

Learn about Sprite, the predecessor to Linux NOW?s distributed 
networking model: 
http://http.cs.berkeley.edu/Research/Projects/sprite/retrospective.html

Archive of Linux newslwtter:
http://www.nwfusion.com/newsletters/linux/index.html

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