Subject: Re: FQDN
To: None <netbsd-users@netbsd.org>
From: Georges Heinesch <geohei-ml@geohei.lu>
List: netbsd-users
Date: 05/14/2001 12:12:28
Quoting Pascal Cabaud (12-May-01 13:21:29):

> On Sat, May 12, 2001 at 08:52:02AM +0100, Georges Heinesch wrote:
>> Hi.
>> 
>> I use NetBSD on a local LAN (3 machines in total). Every night (by
>> a daemon), I get the message that my hostname is not entered as
>> FQDN, which is true.
>> 
>> I dial up into the Internet to my provider, i.e. the system doesn't
>> have a permanent connection.
>> 
>> Questions:
>> 1. Should I consider entering a domain into /etc/rc.conf?
>> 2. If yes, what should I enter?
>>    (My IP address changes during every dialup)

> I don't understand... You have a LAN with 3 NetBSD boxes, right ?

No. I NetBSD box and 2 WinNT. The 2 WinNT machines are not important
for the problem exposed here.

> How does your LAN work if you have not configured /etc/hosts and
> /etc/rc.conf ? Before configure named(8), I had :

> $ more /etc/hosts
> 127.0.0.1      localhost       
> 192.168.1.2    kabs.bertillon.fr       localhost       kabs
> 192.168.1.1    diablotin.bertillon.fr  diablotin       diab
> 192.168.1.3    meleze.bertillon.fr     meleze

----- cut here -----
::1         localhost
127.0.0.1       localhost
192.168.1.1     amiga amiga3000 a3000 a3k
192.168.1.2     dimension dim pc
192.168.1.3     latitude lat laptop lap
----- cut here -----

> $ more /etc/rc.conf | grep hostname
> # Fully Qualified Internet Domain Name (a.k.a. hostname, e.g.
> foo.baz.edu) hostname="mars.bertillon.fr"                           
> # if blank, use /etc/myname
> # if there's only one way out of your network, set this to the
> hostname

----- cut here -----
hostname="amiga"
----- cut here -----

> $ more /etc/rc.conf | grep ifconfig
> auto_ifconfig=YES                               # config all avail.
> interfaces

----- cut here -----
<blank>
----- cut here -----

> $ more /etc/ifconfig.sn0
> inet 192.168.1.1 netmask 0xffffff00
> (sn0 is the Ethernet interface of my boxes)

----- cut here -----
192.168.1.1 netmask 0xffffff00
----- cut here -----

> You should read the NetBSD Install Guide and the Networking-HOWTO
> (see <http://www.netbsd.org/Documentation/>). A good introduction
> to IP is here : <http://www.3com.com/nsc/501302s.html>.

Gonna have a look at that. Thanks!

> To answer to your questions, choose a domain name and some machine
> names.

The question is which domain I should chosse if I have a dialup with
changing domains.

> You could choose your IPs for your boxes in :
> 10.0.0.0 with 24 address bits
> 172.16.0.0 with 20 address bits
> 192.168.0.0 with 16 address bits

That's done as you see above.

> pc


-- 
Cu  Georges Heinesch, Luxembourg
    geohei@geohei.lu
    http://www.geohei.lu
    PGP RSA & DH/DSS public key on request and on public servers

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