[CentOS] CENTOS DHCP Server and windows computer/host name ISSUE

[Phil Savoie]

See inline, please

linux-crazy wrote:
> Hi list,
> 
> We are running few Centos5.4 and windows 2003 instance  on CENTOS XEN 
> virtualized environment , all the guest are getting the 
> IP/NETWORK/GATEWAY setting from the DHCP Server running on CENTOS 5 
> server and the DNS configured on the  windows 2003 server.  
> 
>   All of the CENTOS Guests are getting the IP and  the host name as per 
> the DNS forward look up configured. For example  If the CENTOS  guest1 
> get x.y.z.1 as an IP and it gets the host name as machine1.example.com 
> <http://machine1.example.com>  and so on .
> 
> 
> But none of the windows guest is getting the hostname or computer name 
> from the DHCP server even though its getting the ip from the centos DHCP 
> server properly ,  instead all the windows guest are   setting up the 
> hostname or computername as  ORGNAME-withsomenumbers . eg: 
> techsoft-342156 as a computer name .
> 
> See at present we are not doing any static mapping of IP/HOSTNAME  based 
> on windows GUEST MAC address. So statically mapping the hostname/ip with 
> guest MAC address is out of question  now.  
> 
> 
> Is there is any configuration to be tuned on dhcpd.conf or any  files or 
> parameter to be tuned on windows 2003 guests to get the hostname from 
> the DHCP/DNS . i heard about some option like "*dhcpd  opt 12*" on 
> windows regisrty level will do the job , But am blank how to get things 
> done .
> 
> 
> 
> 
> Also is there is a way to tune CENTOS DHCP Server to lease the ip to the 
> dhcp client in uniform order rather it leases randomly .
> 
I use mac address reservations in the /etc/dhcpd.conf file, like so:

host linsrv {
         hardware ethernet 00:50:fc:57:5c:db;
         option host-name "linsrv";
         fixed-address 192.168.100.254;
}

> 
>  If any one throws me some light on how to get this done  it will be 
> really great full for me .
> 
> Regards,
> Lingu
> 

HTH,

Phil