ProCKSI

h2. DHCP Configuration

All machines obtain their IP addresses, names, etc. dynamically for the internal interface.

h3. DHCP Server

Make sure that the DHCP server only responds to queries from the internal interface (ETH1).

Modify _/etc/sysconfig/dhcpd_:

<pre>

# Command line options here

DHCPDARGS=eth1

</pre>

Modifiy _/etc/dhcpd.conf_ on the head nodde:

<pre>

#Allow to send negative acknowledgements (NAK) to clients

#authoritative;

ddns-update-style    none;

default-lease-time   259200;

#Allow clients with unknown MAC address to obtain an IP

#(useful for installing new machines)

boot-unknown-cliensts = true;

use-host-decl-names   = true;

subnet 192.168.199.0 netmask 255.255.255.0 {

   #Default Gateway

   option routers       192.168.199.10;

   option subnet-mask   255.255.255.0;

   #DNS Options

   option domain-name         "procksi.local";

#  option domain-name-servers 192.168.199.10;

   #NIS Options

#  option nis-domain    "procksi.nis";

#  option nis-servers   192.168.199.10;

   #Time Options

   option ntp-servers   128.243.21.16, 128.243.21.19;

   #Fixed IP Settings

   host procksi0-priv {

      option host-name "procksi0-priv";

      hardware ethernet 00:00:5A:9D:44:54;

      fixed-address 192.168.199.10;

   }

   host procksi1-priv {

      option host-name "procksi1-priv";

      hardware ethernet 00:15:C5:5D:89:5A;

      fixed-address 192.168.199.11;

   }

   host procksi2-priv {

      option host-name "procksi2-priv";

      hardware ethernet 00:15:C5:5D:B8:AC;

      fixed-address 192.168.199.12;

   }

  host procksi3-priv {

     option host-name "procksi3-priv";

     hardware ethernet ;

     fixed-address 192.168.199.13;

  }

  host procksi4-priv {

     option host-name "procksi4-priv";

     hardware ethernet 00:E0:81:48:19:80;

     fixed-address 192.168.199.14;

  }

</pre>

Enable DHCP server at boottime

<pre>

chkconfig dhcpd on

</pre>

Start DHCP server

<pre>

/sbin/service dhcpd start

</pre>

h3. DHCP Client

Modify _/etc/sysconfig/network-scripts/ifcfg-eth0_ (INTERNAL INTERFACE) on each slave node and the head node:

<pre>

DEVICE=eth0

BOOTPROTO=dhcp

HWADDR= [add MAC address here]

ONBOOT=yes

TYPE=Ethernet

</pre>