[CentOS] Set hostname via DHCP ?
Niki Kovacs
contact at kikinovak.net
Mon Jun 29 08:00:35 UTC 2009
Rob Townley a écrit :
> # i do NOT have any kind of use-host-decl-names on; entry. Do you use
> dnsmasq or dhcpd?
I'm using DHCPD. I took two spare machines this morning and played
around with them to make some tests. Here's what I got.
a) Server-side, static IP configuration of course, here's what
dhcpd.conf looks like:
# Options globales
ddns-update-style interim;
authoritative;
default-lease-time 86400; # un jour
max-lease-time 86400; # un jour
# Données du réseau local
option broadcast-address 192.168.1.255;
option subnet-mask 255.255.255.0;
option routers 192.168.1.254;
option domain-name-servers 62.4.16.70, 62.4.17.69;
option domain-name "local";
# Plage d'adresses dynamiques
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.1 192.168.1.240;
}
host raymonde {
hardware ethernet 00:20:ed:b8:e8:ec;
fixed-address 192.168.1.2;
option host-name "raymonde";
}
b) on the client side, just a plain (default) DHCP client configuration.
Now the client ("raymonde") gets his pre-defined address OK. And even
the hostname gets transmitted. Now the question is: how do I also assign
the domain name ("local") to the client?
If I take a look at /var/lib/dhclient/dhclient-eth0.leases (on the
client), here's a summary of the lease:
lease {
interface "eth0";
fixed-address 192.168.1.2;
option subnet-mask 255.255.255.0;
option routers 192.168.1.254;
option dhcp-lease-time 86400;
option dhcp-message-type 5;
option domain-name-servers 62.4.16.70,62.4.17.69;
option dhcp-server-identifier 192.168.1.252;
option broadcast-address 192.168.1.255;
option host-name "raymonde";
option domain-name "local";
renew 1 2009/6/29 17:04:30;
rebind 2 2009/6/30 04:47:44;
expire 2 2009/6/30 07:47:44;
}
Here's what 'hostname' returns:
# hostname
raymonde
But when I go for the domain name, I get this:
# hostname -d
hostname: Hôte inconnu --> means 'Unknown host' in french :o)
Any idea what I'm doing wrong here?
Cheers,
Niki
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