Dynamic IP addresses

Dynamic IP addresses are IP addresses that are assigned to a network devices. DHCP server is responsible assigning these. DHCP server has an IP pool range out of which IP addresses will be assigned.

Dynamic IP addresses are good for client machines, but they are not good for servers.

For example if a mail server has DHCP address, the IP address of that server maybe different next time that server is rebooted. It will invalidate firewall rules to deliver mail.

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