[H-GEN] Thanks - Static IP address

[Paul Clarke]

[ Humbug *General* list - semi-serious discussions about Humbug and     ]
[ Unix-related topics. Posts from non-subscribed addresses will vanish. ]

Hi all,

Thanks for your responses, The solution was so easy and I learnt
something about dhcp servers. Below is the emails that I sent to
QSITE-LAN, There are a lot of schools out there that are starting to
included Linux servers in there server pool, mainly as a proxy, some are
doing some Linux desktops also.

Thanks

Paul.

-----Original Message-----
From: CLARKE PAUL GABRIEL (PAUL)
[mailto:paul.clarke at kuluinss.qld.edu.au]
Sent: Friday, 1 November 2002 09:46
To: 'qsite-lan at qsite.edu.au'
Subject: RE: QL: You learn something every day (DHCP)


Hi,

The debian server thinks it is getting a dynamic IP address, but it is
actually a static address that is allocated by the dhcp server. It makes
life even easier as all the static address (or non critical servers) are
allocated centrally.

In this way if I take it to another network (i.e. humbug) it will get an
IP that works on that network and I don't need to make any changes to
the interfaces config file.

The change I made was on the NT box here at school. When my DHCP server
(PDC) sees the unique card address (MAC address I presume, but NT
doesn't call it that) that from the Debian box it will allocate it the
x.x.x.11 address.

It is actually the same thing that happens with the IP leases that each
card has but in this case the lease never expires.

My PDC and BDC have static addresses of x.x.x.1 & x.x.x.2 and there is
am exemption in the DHCP server for the range x.x.x.1 to x.x.x.10 which
is the standard EQ Curriculum SOE build (I think)

Paul.

-----Original Message-----
From: qsite-lan-owner at qsite.edu.au
[mailto:qsite-lan-owner at qsite.edu.au]On Behalf Of Simon Bryan
Sent: Friday, 1 November 2002 09:17
To: CLARKE PAUL GABRIEL (PAUL); qsite-lan at qsite.edu.au
Subject: RE: QL: You learn something every day (DHCP)


Surely your servers should have a static IP address? Makes life much
easier, especially with web servers and proxy servers! We simply assign
them a fixed IP address from a range that we determine and then take
that range out of the scope of the DHCP server. eg we have 10.192.0.x
for all our servers and 10.192.1.x for all other systems that get their
IP from the DHCP server.

BTW by unique ID do you meanthe MAC Address of the NIC?

> -----Original Message-----
> From: qsite-lan-owner at qsite.edu.au 
> [mailto:qsite-lan-owner at qsite.edu.au]On Behalf Of CLARKE PAUL GABRIEL
> (PAUL)
> Sent: Fri, 1. November 2002 7:43 AM
> To: qsite-lan at qsite.edu.au
> Subject: QL: You learn something every day (DHCP)
>
>
> Hi all,
>
> The brief story: I am "playing" with a Debian installation of Linux. I

> set the box up (easy) and even took it down to the Humbug meeting 
> (thanks Shaun). It was set up to obtain an IP from a DHCP server, so 
> when I plugged it into the network at the Humbug meeting or here at 
> school it gets an IP address (as one would expect).
>
> But at school all my servers have a static ip (x.x.x.1 to x.x.x.10) 
> for no other reason other than it makes it easy to remember when 
> trouble shooting. So I asked the humbug list how to assign a static IP

> (I almost had it!). One
> response suggested:
> "NB. A DHCP Server can assign static IPs also which makes updating
> everything simple and central."
>
> So a quick trip to the server this morning, kicked some poor 
> workstation off it's lease (I'm sure it will get another :) found the 
> unique id for the IP the Debian server had, created a reservation with

> ip x.x.x.11
>
> Jumped into the Debian box did an 'ifdown eth0' followed by a 'ifup 
> eth0' and then a ifconfig just to check and I now have a static IP 
> assigned by the dhcp server.
>
> Then I ask myself, "Why don't I do this for the BDC?"
> ... but of course there is a very valid reason why this is not 
> advisable!
>
> So I learnt about reservations on a DHCP server and the day has 
> started well!
>
> Paul.
>
>
> Paul Clarke (QTU Member)
> Technology Manager
> The Kuluin School
> Paul.Clarke at kuluinss.qld.edu.au
>
> ----------
>
> QSITE-LAN discusses issues related to Local Area Networks (LANs). Your

> list manager is Bruce Young <b.young at uq.net.au>
> Archives: http://www.edna.edu.au/messaging/list.html?id=qsite-lan

----------

QSITE-LAN discusses issues related to Local Area Networks (LANs). Your
list manager is Bruce Young <b.young at uq.net.au>
Archives: http://www.edna.edu.au/messaging/list.html?id=qsite-lan


--
* This is list (humbug) general handled by majordomo at lists.humbug.org.au .
* Postings to this list are only accepted from subscribed addresses of
* lists 'general' or 'general-post'.  See http://www.humbug.org.au/