pjb at informatimago.com
Sun Nov 23 14:29:41 PST 2003
> I'm going to create this file but i have a doubth.
> I'm using an ADSL line with a router configured like if i was a only one
> net computer ( in spanish this configuration is called MULTIPUESTO).
> I mean that i have a gateway with a static IP (that is my router) and my
> computer have an DCHP assigned IP adresss (192.168.1.x).
> When i intalled linux , all net configuretion was automatically
> downloaded by linux itself from the router.
> So.. my question is...
> Must I create hots file (in net card version) or is there anyelse way to
> get it from the router...
> Can i follow the kind of configuration that is teached in book or with
> my configuration, I have to consider some more things...
> Sorry if my english and my net level isn't good enough but i trying to
> improve. :)
If the IP address is allocated by the DHCP server (in the router),
then it can be different each time it's allocated. The D in DHCP means
Dynamical, and that means that it can change.
/etc/hosts, like DNS, is merely a mean to make a correspondance
between IP addresses and human readable names.
If your DHCP server allocates addresses in the range 192.168.1.0 to
192.168.1.255, then you can put names to these addresses, but note
that the name will change accordingly when the adresse allocated to
your computer changes.
You could put the following lines in the /etc/hosts of each of your
then you'll be able to refer them by name. But while you keep a DHCP
configuration, the computer named uno.mi-red can be one or the other
of your LAN.
What I would do is:
1- check the configuration of the router. You may keep a DHCP range
for when you want to connect a laptop or "visitor" computer on your
LAN, but make it smaller than the whole subnet.
2- have a range of your LAN addresses reserved for fixed adresses that
you'll allocate statically to your computers.
3- either run a DNS on your LAN, or copy the same /etc/hosts on all
your computers with the mapping name <-> fixed IP you want.
So you may call each of your resident computers with fixed names and
fixed addresses 192.168.1.x, and still have "visitor" computers with
dynamically allocated addresses 192.168.1.y.
Living free in Alaska or in Siberia, a grizzli's life expectancy is 35 years,
but no more than 8 years in captivity. http://www.theadvocates.org/
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