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Network Address Translation (NAT) is a method used in networks to modify network address information in IP packet headers while in transit, allowing multiple devices on a local network to share a single public IP address. This process enhances security and conserves the limited number of available IPv4 addresses by hiding the internal IP addresses from external networks.
A public IP address is a unique identifier assigned to a device that enables it to communicate over the internet, allowing it to be located and accessed by other devices globally. These addresses are managed by the Internet Assigned Numbers Authority (IANA) and are essential for routing internet traffic effectively and securely.
A private IP address is an IP address that is reserved for internal use within a private network and is not routable on the global internet. It allows devices within the same network to communicate with each other while conserving public IP addresses and enhancing security by keeping internal devices hidden from external networks.
Port forwarding is a networking technique that allows external devices to access services on a private network by redirecting communication requests from one address and port number to another. It's crucial for enabling remote access to networked devices and services, often used in gaming, hosting servers, and accessing home security systems remotely.
Concept
Subnetting is a technique used in IP networking to divide a larger network into smaller, more manageable subnetworks, enhancing both performance and security. It optimizes the use of IP addresses and reduces network congestion by localizing traffic within subnets.
Concept
Routing is the process of selecting paths in a network along which to send data packets, ensuring efficient and reliable communication between devices. It involves the use of algorithms and protocols to determine the best path based on factors like network topology, traffic load, and link costs.
Packet filtering is a network security mechanism that controls data flow to and from a network by analyzing incoming and outgoing packets based on predefined rules. It serves as the first line of defense in network security, allowing or blocking packets based on criteria such as IP addresses, protocols, and port numbers.
Network configuration involves setting up a network's controls, flow, and operation to ensure optimal performance and security. It encompasses the process of assigning network settings, policies, and devices to facilitate communication and resource sharing within an organization.
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