Network Address Translation

The process where a network device, usually a firewall, assigns a public address to a computer (or group of computers) inside a private network. The main use of NAT is to limit the number of public IP addresses an organization or company must use, for both economy and security purposes.

The most common form of network translation involves a large private network using addresses in a private range (10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, or 192.168.0 0 to 192.168.255.255).
Network Address Translation (NAT) are quite complex but happen so rapidly that the end user rarely knows it has occurred. Additionally, NAT can be used to allow selective access to the outside of the network.

NAT is a very important aspect of firewall security. It conserves the number of public addresses used within an organization, and it allows for stricter control of access to resources on both sides of the firewall.



http://whatismyipaddress.com/nat

Comments

Post a Comment

Popular posts from this blog

Basic Networking

Process of prevent and monitor unauthorized access, misuse, modification, or denial of a computer network and network-accessible resources. Involves the authorization of access to data in a network controlled by network administrator. Security Management For different kind of situation on home or office may require high-maintenance and advanced software and hardware to prevent malicious attacks from hacking and spamming . Types of Attack : Passive Network - wiretapping, port scanner, idle scan, encryption and etc. Active Virus Data modification - Denial-of-service attack, DNS spoofing, ARP poisoning SQL injection, phishing, sniffing and etc. https://en.wikipedia.org/wiki/Network_security
Read more

Structured Cabling

Image
Telecommunications cabling infrastructure that consists of a number of standardized smaller elements (hence structured) called subsystems. Design and installation of a cabling systems that will support multiple hardware uses systems and be suitable for today’s needs and those of the future.   Standards that specify wiring data centers, offices, and apartment buildings for data or voice communications using various kinds of cable, most commonly category 5e (CAT5e), category 6 (CAT6), and fiber optic cabling and modular connectors. Subsystem: Entrance facilities Equipment rooms Backbone cabling Horizontal cabling wiring Telecommunications rooms Work-area components https://en.wikipedia.org/wiki/Structured_cabling
Read more