Hi 
 I feel its would be worth while considering the idea of the ability to 
configure any single  host
over the network or set of server farms using the configurator tool.
This would enable administrators to  use it as compliance engine across the 
organisation.
Features Like:
    Auto update
    Jump start software installations from known location


regards 
 divyank
    
    


----- Original Message ----
From: Yip Wai Peng <[EMAIL PROTECTED]>
To: [email protected]
Sent: Friday, February 1, 2008 7:52:27 PM
Subject: Re: [Slugnet] Re: Linux System Configuration


On 
Wednesday 
30 
January 
2008 
01:19:46 
am 
Kokhong 
Cheng 
wrote:
> 
Hi 
all,
>
> 
Thanks 
to 
Joel 
and 
Chris 
for 
your 
feedback 
and 
ideas. 
I 
have 
yet 
to
> 
study 
all 
available 
solutions 
mentioned, 
but 
I 
would 
like 
to 
make
> 
further 
comments.
>
> 
Instead 
of 
the 
superficial 
middle 
layer 
interfaces, 
I'm 
more 
focused 
on
> 
the 
core 
system 
facilitating 
the 
systematic 
storage 
and 
access 
of
> 
configuration 
parameters. 
I 
believe 
that 
such 
a 
centralized 
system 
is
> 
not 
so 
well 
received 
right 
now 
due 
to 
several 
factors, 
namely 
inertia
> 
(towards 
the 
old 
system), 
uncertainty 
towards 
a 
new, 
undefined 
system,
> 
and 
also 
the 
bad 
example 
of 
the 
Windows 
registry.
>
> 
First, 
I 
speak 
not 
of 
user 
interfaces 
to 
generate 
configurations, 
i.e.
> 
Webmin, 
linuxconf, 
etc. 
These 
generate 
old 
style 
configuration 
files 
in
> 
the 
end. 
I 
am 
talking 
about 
implementing 
this 
at 
the 
operating 
system
> 
level, 
yes, 
just 
like 
Windows 
- 
having 
a 
central 
registry 
where 
all
> 
applications 
store 
and 
access 
their 
configuration. 
Applications 
till
> 
Win3.11 
still 
used 
INI 
files, 
very 
much 
like 
conf 
files. 
But 
nowadays,
> 
pretty 
much 
every 
Windows 
application 
is 
using 
the 
registry. 
I 
believe
> 
this 
can 
be 
done 
for 
Linux 
applications 
too, 
provided 
the 
interface 
to
> 
the 
configuration 
system 
is 
clearly 
defined.
>
> 
The 
registry 
is 
a 
beast, 
yes, 
but 
I 
think 
it 
is 
the 
particular
> 
implementation 
and 
the 
organization 
of 
the 
Windows 
registry 
that 
puts
> 
most 
people 
off; 
of 
course 
regedt32 
is 
horrible 
too. 
But 
apart 
from
> 
that, 
I 
think 
they 
have 
pretty 
much 
figured 
out 
what 
a 
registry 
needs 
to
> 
be. 
I 
don't 
think 
the 
/etc 
is 
very 
friendly 
either. 
Well, 
at 
least
> 
/proc/sys 
is 
well 
organized; 
in 
fact 
it 
is 
exactly 
how 
we 
should 
be
> 
modeling 
the 
management 
of 
userspace 
application 
configurations!
>
> 
The 
config 
manager 
will 
be 
backed 
by 
a 
structured 
data-store. 
Most
> 
systems 
I've 
seen 
use 
either 
the 
.reg 
format 
or 
XML 
format. 
I 
personally
> 
feel 
that 
it 
should 
be 
backed 
by 
a 
REAL 
database, 
e.g. 
SQLite 
instead 
of
> 
being 
an 
XML 
file.
>

Interesting 
idea, 
let's 
throw 
a 
few 
thoughts 
around 
shall 
we?

First 
of 
all, 
why 
the 
inclination 
towards 
a 
REAL 
database 
format? 
What 
are 
the 
pros 
that 
a 
DB 
offers, 
over 
flat 
files? 
Speed 
might 
be 
one, 
but 
how 
big 
are 
conf 
files 
going 
to 
get?

What 
I 
am 
worried 
most 
about, 
is 
the 
idea 
of 
storing 
all 
your 
eggs 
in 
one 
basket. 
What 
happens 
if 
the 
registry 
gets 
corrupted? 
How 
good 
are 
the 
tools 
to 
recover 
them? 
Putting 
all 
configurations 
together 
+ 
using 
a 
binary 
format 
for 
them 
= 
bitch 
when 
you 
need 
to 
recover 
something. 
Best 
have 
a 
backup 
lying 
around, 
cos 
when 
that's 
dead 
no 
daemons 
will 
be 
able 
to 
boot.

Also, 
one 
will 
have 
to 
take 
note 
of 
what 
happens 
if 
a 
user 
wants 
to 
install 
a 
program 
by 
themself? 
For 
example, 
I 
have 
specific 
builds 
of 
mplayer/mencoder 
that 
is 
not 
available 
with 
rpms. 
They 
have 
their 
own 
conf 
files 
under 
/home/waipeng/etc/xxx/. 
In 
this 
case, 
you 
need 
to 
put 
aside 
parts 
of 
the 
registry 
for 
user.

Just 
some 
thoughts 
for 
now, 
maybe 
other 
weird 
cases 
will 
pop 
up 
while 
working.

Cheers!
Wai 
Peng

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