On Sat, 10 Jul 2004, Chad Perrin wrote:
> ##### Eben King wrote:
>
> > When I decided to use DHCP rather than static addresses, my router didn't
> > do fixed assignments, so I ran a DHCP server on one of the clients (a
> > Linux box, so it's almost always on). If it's the structure that's
> > getting you (as it got me with one of the format changes), I can give you
> > a working file.
>
> The network isn't solely mine to define the arhitecture, so I'm not sure this is
> really an option -- especially considering the only machine I could use for such
> a purpose is a 350MHz machine that's already acting as a file server and fax
> server, since it's the only Linux box that's currently connected to a UPS (and
> thus protected from having to be shut down during thunderstorms, despite my
> almost rabid advocation of ubiquitous UPS use). I'd appreciate any explication
> of your suggested solution, though, in case I can find a way to implement it,
> either now or at some point in the future.
It doesn't matter how fast the DHCP server is. I think an XT would do, if
you could find a *nix to run on it. That solitary UPSed machine is fine.
The software I use is called "dhcp-3.0pl1-9"; there may be other software
out there that works fine, or a more recent version of what I have. My
config file is /etc/dhcpd.conf and looks like this:
ddns-update-style interim;
ignore client-updates;
subnet 192.168.0.0 netmask 255.255.255.0 {
option routers 192.168.1.31; # my router's internal IP address
option subnet-mask 255.255.255.0;
option domain-name "tampabay.rr.com";
option domain-name-servers 65.32.2.130, 65.32.1.70, 128.227.128.24;
option log-servers 192.168.1.11; # my machine
default-lease-time 86400; # one day
max-lease-time 804800; # one week
host firewall { # I think that name is for internal use only
hardware ethernet 00:c0:f0:54:6f:23;
fixed-address firewall; # and that is as is listed in /etc/hosts
}
host thinkpad {
hardware ethernet 00:09:6b:bf:f0:3d;
fixed-address thinkpad;
option root-path "192.168.1.11:/nfs"; # this host boots via NFS
}
# more, similar, hosts go here
}
subnet 192.168.1.0 netmask 255.255.255.0 {
# random other machines that hook into the network
range 192.168.1.128 192.168.1.254;
option broadcast-address 192.168.1.255;
}
subnet 192.168.213.0 netmask 255.255.255.0 {
}
# other subnets that are used for whatever reason
Hmm, just realized I may have fouled up my subnet settings in that file...
have to work on that. But you get the idea. You'll probably change them
for your own use anyhow.
--
-eben ebQenW1@EtaRmpTabYayU.rIr.OcoPm home.tampabay.rr.com/hactar
He who will not reason is a bigot; he who cannot is a fool;
and he who dares not is a slave. -Sir William Drummond
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