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Networking Beginner

What is IP Address?

A unique numerical label assigned to each device on a computer network for identification and communication.

An IP (Internet Protocol) address uniquely identifies a device on a network. IPv4 uses 32-bit addresses (e.g., 192.168.1.1) providing about 4.3 billion addresses. IPv6 uses 128-bit addresses (e.g., 2001:db8::1) for virtually unlimited addresses.

IP addresses can be public (internet-facing) or private (local network). Private ranges include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.

Related Terms

Firewall
A network security system that monitors and controls incoming and outgoing traffic based on predetermined rules.
Multicast
A network communication method that sends data to multiple recipients simultaneously without duplicating packets for each recipient.
DNS Record Types
Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.
ARP (Address Resolution Protocol)
A protocol that maps IP addresses to physical MAC addresses on a local network segment.
DNS Propagation
The time it takes for DNS record changes to spread across all DNS servers worldwide, typically taking up to 48 hours.
SSL/TLS Certificate
A digital certificate that authenticates a website identity and enables encrypted HTTPS connections.
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