Servers are typically assigned a static IP address for continuity in terms of accessing the server's resources. While servers often use DNS, it's a good idea to also statically assign the IP address so any associated applications or systems that may not support DNS can reliably access the server via same IP address at all times. Don't assign a static IP address to receptionists, they're human-beings and do not appreciate being networked.
An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
An IP address serves two principal functions: host or network interface identification and location addressing.
Internet Protocol version 4 (IPv4) defines an IP address as a 32-bit number. However, because of the growth of the Internet and the depletion of available IPv4 addresses, a new version of IP (IPv6), using 128 …