Page 115 - RHEL8 BOOK
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More about DHCP:
               DHCP is a connectionless protocol.
               DHCP uses destination UDP port 67 for sending data to the server, and UDP port 68 for data to
                 the client.
               DHCP process is often abbreviated as DORA (Discovery, Offer, Request, and
                 Acknowledgement).
               DHCP servers and clients initially communicates via UDP broadcasts on the same subnet.
               DHCP Helper or DHCP Relay Agent may be used if servers and client are on different subnet.
               Clients communicate directly via UDP unicast, requesting renewal of an existing lease.

          Why DHCP Reservation?

          Assigning IP address dynamically has some problems that every time a client system boots it is not sure
          that it will get the same IP so it will be uneasy task for other systems to find the particular system.

          To solve the above problem, we can do mac-address
          Binding of the IPs. Just give its entry in the fixed address portion.

                                                     Requirements
            Packages
                 dhcp*

            Port Numbers
                 67 Bootp
                 68 DHCP

            Configuration File
                 /etc/dhcpd.conf
            Service
                 dhcpd
            Daemon
                 Dhcpd
















                                                       S. Pradhan
                             (MCA, MBA-IT, BCA, CCNA, MCSA 2012, RHCE, ETHICAL HACKING)
                                             Email Id:-spradhan.iiht@gmail.com
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