Re: [ilugd] Large Debian installations in India

2011-04-03 Thread gurteshwar singh
 Message: 3
 Date: Thu, 31 Mar 2011 16:40:05 +0530
 From: Raj Mathur r...@linux-delhi.org
 To: The Linux-Delhi mailing list ilugd@lists.linux-delhi.org
 Subject: [ilugd] Large Debian installations in India
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 Hi,

 Tirveni and I just completed a large (~2500 desktops + ~40 servers)
 installation of Debian -- Squeeze and Wheezy -- in 6 locations in
 India.  Was wondering, is anyone aware of larger or comparable Debian
 installations in the country?  Or should we be spraining our wrists
 trying to pat ourselves on our backs?

 Regards,

 -- Raj

Hi,

First, congratulations on the large scale deployment !
May I also add a few related questions. Feel free to ignore any if
they fall in the NDA domain :)

1) Regarding support and access: Setting up telephony systems is not
such an easy job and messing them up seems to be even easier. So my
question is how much of access do you give the organisation's in-house
support team on your servers. Do you for example take the risk of
asterisk config files getting messed by somebody at your client's
location? Or do you only expose only the dynamic parts of the system
(adding users, retrieving call recordings etc). I imagine it would be
mandatory to give them root access. Is that correct? If yes, then is
it the case of implementing as many safeguards as you can?

2) Licensing: How do you go about explaining them the license. Do you
just list major parts like asterisk and debian and tell them we used
this and its licensed under so and so foss license? Is there detailed
written license documentation to be provided or just providing links
to licenses sufficient?

Regards,
Gurteshwar

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Re: [ilugd] [LONG] Re: Large Debian installations in India

2011-04-03 Thread Raj Mathur (राज माथुर)
On Sunday 03 Apr 2011, Andrew Lynn wrote:
 [snip]
 Please - at least - write up this aspect of the project as a white
 paper that we can circulate to govt. funded intstitutions. If you
 need help with the non-technical documentation and research, I can
 see if some students from our university can get involved in doing
 it as  research project.

Would be glad to do that provided (a) the client gets discretionary 
control on the contents of the paper and (b) someone tells me what a 
white paper is actually supposed to contain.

Regards,

-- Raj
-- 
Raj Mathurr...@kandalaya.org  http://kandalaya.org/
   GPG: 78D4 FC67 367F 40E2 0DD5  0FEF C968 D0EF CC68 D17F
PsyTrance  Chill: http://schizoid.in/   ||   It is the mind that moves

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Re: [ilugd] Large Debian installations in India

2011-04-03 Thread Raj Mathur (राज माथुर)
On Sunday 03 Apr 2011, gurteshwar singh wrote:
 1) Regarding support and access: Setting up telephony systems is not
 such an easy job and messing them up seems to be even easier. So my
 question is how much of access do you give the organisation's
 in-house support team on your servers. Do you for example take the
 risk of asterisk config files getting messed by somebody at your
 client's location? Or do you only expose only the dynamic parts of
 the system (adding users, retrieving call recordings etc). I imagine
 it would be mandatory to give them root access. Is that correct? If
 yes, then is it the case of implementing as many safeguards as you
 can?

Support falls into two categories:

1. Operational support -- diagnosing and fixing problems, adding 
resources, monitoring, etc.

2. Provisioning -- adding desktops, configuring for specific users, 
adding Asterisk accounts, etc.

For the first we've tried to create base documentation which the 
client's tech team can use to monitor, diagnose and fix common problems.  
Out of the whole tech team, there are two people who have the 
authorisation to login as root onto the Asterisk servers and run 
diagnostics and fixes.  One has years of Unix experience, the other is a 
Windows wiz-kid who's learning Linux and seems, so far, to be enjoying 
it.  He paid me the ultimate compliment the other day, saying he was -- 
and I quote -- the Raj Mathur of Windows.

Provisioning is handled completely through scripts.  Asterisk 
provisioning is handled by keeping base configurations in immutable 
files, which #include the files that contain the changing information.  
These dynamic files (user extensions, user-level call routing, inward 
routing, etc.) are again generated through scripts and copied by one of 
the two people mentioned above to the appropriate place in the Asterisk 
servers on a regular basis.

Provisioning of desktops for a specific user is completely scripted: 
login as guest, ssh to a specific account on a defined server which will 
prompt you for an employee ID, enter the ID, sit back for 2 minutes and 
the machine you were on is provisioned for that employee.

There's still lots of scope for improvement here, but we're in no hurry 
to implement systems piece-meal.  The organisation has an IT strategy, 
and the voice system processes too will get streamlined as dependent 
portions of the strategy fall into place.  For instance, once HR 
processes are in place, Asterisk user provisioning will automatically 
become a part of those.  Of course, we would have shifted to Asterisk 
Realtime (dynamic configurations from a database rather than static 
configurations from file) too by then.

 2) Licensing: How do you go about explaining them the license. Do you
 just list major parts like asterisk and debian and tell them we used
 this and its licensed under so and so foss license? Is there detailed
 written license documentation to be provided or just providing links
 to licenses sufficient?

Actually that is one thing we haven't had any issues with, since the CTO 
understands FOSS licensing.  The only time we had to explain things was 
when he saw me writing a script and putting the GPL clause at the top.  
However I explained to him that licensing and releasing were two 
different things, and just because the script was GPL didn't mean that 
he had to give it to anyone for the asking.  I think the point got 
through.

Regards,

-- Raj
-- 
Raj Mathurr...@kandalaya.org  http://kandalaya.org/
   GPG: 78D4 FC67 367F 40E2 0DD5  0FEF C968 D0EF CC68 D17F
PsyTrance  Chill: http://schizoid.in/   ||   It is the mind that moves

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Re: [ilugd] Monitor Broadband usage

2011-04-03 Thread Vivek Kapoor

On 04/02/2011 11:46 AM, Arun Khan knu...@gmail.com wrote:


I have been doing some experiments with a Buffalo WHR-HP-G300N [1]
with DD-WRT firmware (officially from Buffalo on a CDROM that needs to
be flashed).   The firmware has some cool features; for a Rs. 3500
street price I think it is worth it as it removes some of the trials
and experimentation.

[1]  This is the only model with official DD-WRT support for the Indian market.


This is cool! I had purchased a Linksys WRT54GL (I doubt it's available 
now) which had support for OpenWrt, and I could solder SD card to it to 
enhance the storage etc. I purchased all equipment, but no time to 
actually do anything, so it's just there with the default firmware.


This WHR-HP-G300N looks interesting - double the CPU (400 Mhz)  Memory 
(32 MB). Would be faster and run asterisk better :-) If only we could 
plug in a 3G SIM, we would've been able to make it a mobile wifi router!


Regards
Vivek Kapoor
http://exain.com

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