CentOS - Aug 2010 - CENTOS DHCP Server and windows computer/host name ISSUE

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  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 .


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

Regards,
Lingu
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On Tuesday, August 24, 2010, "linux-crazy" <hicheerup at
gmail.com> wrote:
> 
> 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 .
> 
> .
Ask on a Windows list?

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

On Tue, Aug 24, 2010 at 3:12 PM, linux-crazy <hicheerup at gmail.com>
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 ?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 .
>
>
> ?If any one throws me some light on how to get this done? it will be really
> great full for me .
>
> Regards,
> Lingu
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>
>
Why don't you run DHCP & DNS on CentOS?

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