headers
Chris Kacoroski | 9 Nov 2004 05:02
Favicon

dhcp addresses and laptops

Hi,

I would like to know what other folks do in this situation.  I use dhcp 
addresses for all my clients in a school district with 30 class B 
subnets (one for each school).  I am starting to centrally manage these 
clients via cfengine, but I keep running into issues because the ip 
address can change.  I would like to use fixed, dhcp addresses, but 
cannot figure out a way for laptops who will move between different 
subnets not end up with an address that will not work (e.g. if the dhcp 
server fixes a laptop address to 10.121.245.200 and the laptop is 
started in a school with a subnet of 10.141.x.x).

Appreciate any ideas on how to resolve this issue.

cheers,

ski
Permalink | Reply | 1 comment |
headers
Robert Hajime Lanning | 9 Nov 2004 07:29
Picon

Re: dhcp addresses and laptops

So, are you trying to manage the notebooks with cfengine at the same time that
they are moving between subnets?

If you are, then DDNS may be the easier way to go.

Create a dynamic zone, "dhcp.district.edu", create a naming standard.  This can
be enforced via the DHCP server, since the DHCP server would be doing
the updates.
When a client gets a lease, have the DHCP server update DNS.  Then reference
the DNS name in cfengine.

Or if you are using a single instance of ISC DHCPd to run all subnets, then
you can assign multiple IP addresses to a known MAC address in the "host"
declaration.  The DHCP server will assign the address based on which subnet
it received the request from.
Permalink | Reply | 0 comments |
headers
David_Peterka | 9 Nov 2004 22:01

David Peterka/FIRNY/NorthAmerica/MCKINSEY is out of the office.


I will be out of the office starting  11/01/2004 and will not return until
11/15/2004.

I am out until 11/15.

+=========================================================+
This message may contain confidential and/or privileged
information.  If you are not the addressee or authorized to
receive this for the addressee, you must not use, copy,
disclose or take any action based on this message or any
information herein.  If you have received this message in
error, please advise the sender immediately by reply e-mail
and delete this message.  Thank you for your cooperation.
+=========================================================+
Permalink | Reply | 0 comments |
headers
Steve Traugott | 10 Nov 2004 06:55

Infrastructures BOF at LISA?

Hey, does anyone want to organize an Infrastructures BOF at LISA?  

In case you hadn't heard yet, I won't be there this year, but that
shouldn't stop folks from putting something together; I usually get one
set up myself, but if anyone else wants to, go for it.  Maybe Coordinate
here so there aren't duplicates. ;-)  Instructions are here:

    http://www.usenix.org/events/lisa04/bofs.html

If you do it this week, they'll probably still have time to print up a
nice pretty sign.  Hmmm... other hints; try not to schedule opposite
something too popular, like anything crypto, SPAM, or Linux related.
The Tuesday 8-9 slot in Sydney (right after Mark's cfengine BOF) looks
good.

Steve
--

-- 
Stephen G. Traugott  (KG6HDQ)
UNIX/Linux Infrastructure Architect, TerraLuna LLC
stevegt <at> TerraLuna.Org 
http://www.stevegt.com -- http://Infrastructures.Org
Permalink | Reply | 0 comments |
headers
Thomas Lange | 12 Nov 2004 11:51
Picon

BOF at LISA 2004

Hi,

I will give a BOF at LISA 2004 about automated installation methods.
I like to discuss user experiences with vendor tools and self made
tools for the initial OS installation (including applications). I hope
that some of you can give some experiences concerning other tools than
I know.

The date, time and room is not yet confirmed, so please check at LISA
if it has changed.

Title: How to install a computer fully automaticly

short description: 

How do you install an OS and your applications on your brand new
computers? Fully automatic? We will discuss user experiences with
different methods for automated installations like Jumpstart,
Kickstart, image based installation and I will tell something about
the project FAI. Which features do we miss in those tools? Which are
the pros & cons?

   2. What is the name & affiliation of the BoF presenter?
Thomas Lange, Debian Developer, author of FAI, University of Cologne

   3. What is your room, date, and time preference?
Thursday, November 18, Room Champagne, 9:00 p.m. - 10:00 p.m.

--

-- 
regards Thomas
(Continue reading)

Permalink | Reply | 0 comments |
headers
Carlson, Scott | 12 Nov 2004 17:53
Picon
Favicon

White Papers to Compare & Contrast "Provisioning"/"Automation"/"P ackaging" Tools

Hey folks,

I did some basic searching throught he nether regions of the internet, but
didn't really find what I was looking for.  We're finally doing some "Server
Rationalization" here with the goal of reducing 2000+ machines down to <
1000 by combining workloads, hosting web servers on the same platforms, etc.
I'm trying to figure out the best way to compare tools that are in the
running throughout the whole gamut of the infrastructures concept.  We've
basically decided to use Tivoli Config Manager for most things, but are
looking at other tools (ala CFEngine/LCFG/) to do some other things (pretty
vague, huh).

Anyway, before I sit here and type up all of our requirements, etc, I was
hoping that there was a good repository of white papers out there showing
comparisons between all of the tools that we talk about all of the time.
Can anyone share anything they've done for their own companies, or are there
especially good comparison papers that were presented at a conference.

I'll gladly summarize our findings back to the list too as things progress.
I quite honestly am at the beginning of this whole "justify what we pick,
not just pick something we know of" process that I'm looking for some good
guidance from people who have a whole lot more experience than me on this
topic.

Looking forward to seeing some of you  <at>  LISA next week!

Thanks,

Scott Carlson
Technical Director - Availability
(Continue reading)

Permalink | Reply | 0 comments |
headers
George Georgalis | 15 Nov 2004 21:11

mapping access

Hi -

I'm developing a site where mapping the access permissions is getting
elaborate. Typically we are using ssh keys and will want to purge and
propagate new keys according to a road map.

With various groups (web, dns, mail, db, cvs, etc), bidirectional
requirements and automatons (no pass phrase keys for certain
processes), the road map is getting complicated.

So I sat down with OpenOffice to diagram the access topology and quickly
realized it's not adequate. Is there a better app? How are people
mapping access models?

// George

--

-- 
George Georgalis, systems architect, administrator Linux BSD IXOYE
http://galis.org/george/ cell:646-331-2027 mailto:george <at> galis.org
Permalink | Reply | 8 comments |
headers
Sascha Silbe | 16 Nov 2004 01:05

Re: mapping access

On Mon, Nov 15, 2004 at 03:11:11PM -0500, George Georgalis wrote:

> So I sat down with OpenOffice to diagram the access topology and 
> quickly realized it's not adequate.
You might want to try one of the programs in the graphviz [1] package. 
It's a sophicasted (but easy-to-use) generic graph visualization 
package.
Just feed it a simple text file describing your graph and it will 
generate any output you like (png, svg, ps, html-imagemap, ...).

[1] http://www.research.att.com/sw/tools/graphviz/

CU Sascha

--

-- 
Registered Linux User #77587 (http://counter.li.org/)

bomb terrorist afghanistan PGP encrypt CIA FBI BND MAD StaSi anschlag 
strike sex pussy xxx kill bj hitler Gates MS Windows ZV ZDV
Permalink | Reply | 0 comments |
headers
joshua sahala | 16 Nov 2004 01:47

Re: mapping access

On (15/11/04 15:11), George Georgalis wrote:
> 
> So I sat down with OpenOffice to diagram the access topology and quickly
> realized it's not adequate. Is there a better app? How are people
> mapping access models?
> 

you might try dia (or visio if you happen to have a windoze box)...there
are icons for relational drawings, so you could probably do what you need
with that

http://www.gnome.org/projects/dia/

hth

/joshua
--

-- 
A common mistake that people make when trying to design something 
completely foolproof is to underestimate the ingenuity of complete
fools.
	- Douglas Adams -
Permalink | Reply | 0 comments |
headers
Matt S Trout | 16 Nov 2004 15:22
Picon

Re: mapping access

On Mon, Nov 15, 2004 at 03:11:33PM -0500, George Georgalis wrote:
> So I sat down with OpenOffice to diagram the access topology and quickly
> realized it's not adequate. Is there a better app? How are people
> mapping access models?

Kivio's pretty good for diagramming.

--

-- 
Bring me my etherkiller; Oh clouds unfold! / Bring me the magic smoke of desire
I shall not cease from mental fight / Nor shall my LART rest in my hand
Till we have buried the bodies / Of all the lusers in all this land
  -- rpg, ASR                        [ My homepage is http://www.trout.me.uk/ ]
Permalink | Reply | 5 comments |

Gmane