###DHCPD###
Features:
1. Auto-configuration of IP client(s)
2. Include all sorts of settings: IPv4 IPv6
3. DHCP is an UDP application (UDP:67)
Tasks:
1. Reconfigure ''eth1'' to use: ''/27''
a. ''nano /etc/sysconfig/network-scripts/ifcfg-eth1'' - ''PREFIX=27
2. Install DHCP
a. ''yum -y install dhcp''
b. ''rpm -ql dhcp''
/etc/dhcp - container for DHCPD configuration
/etc/dhcp/dhcpd.conf - IPv4 config
/etc/dhcp/dhcpd6.conf - IPv6 config
/var/lib/dhcpd - container for leases
/var/lib/dhcpd/dhcpd.leases - IPv4 lease
/var/lib/dhcpd/dhcpd6.leases - IPv6 lease
3. Configure scope for: ''192.168.76.0/27'' - focilitates 2**5 -2 hosts
192.168.76.0 - Network address
192.168.76.1-30 - Usable
192.168.76.32 - broadcast
Note: Alter DHCPD to log using a different facility: i.e. ''local6'' becauses boot messages are logged via : ''local7''
4. Start/invoke ''eth1'' interface on: ''linuxcbtserv1''
Note: This will launch the ''dhcpclient'' process, which will request configuration via DHCP
a. ''ifup eth1''
inet addr:192.168.0.23 Bcast:192.168.0.255 Mask:255.255.255.0
''.224'' = ''/27''
''/24'' = ''.0''
''/25'' = ''.128''
''/26'' = ''.192''
''/27'' = ''.224''
5. Configre a reservation to ensure that: ''linuxcbtserv1'' is ALWAYS served the same address
a. ''nano /etc/dhcp/dhcpd.conf''
Note: DHCPD follows the DORA process:
D - Discovery (Client)
O - Offer (Server)
R - Request (Client)
A - Acknowledgement (Server)
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