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A generic term for computer equipment such as a hub, switch, router, or printer. DHCP server A device that automatically assigns IP addresses to networked computers from a defined pool of numbers, returning unused IP addresses to the pool.
Using a DHCP server, an administrator normally does not have to get involved with the details of assigning IP addresses to individual clients.
It offers additional options, and requires your acknowledgement before it goes away. Diffie-Hellman A mathematical algorithm that allows two users to exchange a secret key over an insecure medium without any prior secrets.
Creating a digital signature involves elaborate mathematical techniques that the sender and recipient can both perform on the transmitted data. Performing identical formulas on identical data should produce identical results at both the sending and receiving end.
If the message was modified after being sent -- even if all someone did was change the punctuation on a sentence, or added an extra space between two of the words -- you could tell. A digital signature typically depends upon three elements: The state of a Firebox when it is not actively protecting a network.
This library is intended to be a universal resource that any program can use, reducing the need to have similar snippets of code existing on a computer in multiple places. Windows comes with many DLLs that programs can use to get the recognized "Windows" feel. DMZ Demilitarized Zone A partially-protected zone on a network, not exposed to the full fury of the Internet, but not fully behind the firewall.
This technique is typically used on parts of the network which must remain open to the public such as a Web server but must also access trusted resources such as a database. The point is to allow the inside firewall component, guarding the trusted resources, to make certain assumptions about the impossibility of outsiders forging DMZ addresses.
This is what allows your computer network to understand that you want to reach the server at DNS cache poisoning A clever technique that tricks your DNS server into believing it has received authentic information when, in reality, it has been lied to.
Imagine that someone decides to use the Microsoft Update Web site to get the latest Internet Explorer patch. But, the attacker has inserted phony addresses for update. Using this technique, an attacker can convince your system that an existing Web page does not exist, or respond to requests that should lead to a legitimate Web site, with the IP address of a malicious Web site.
This differs from DNS cache poisoning because in DNS spoofing, the attacker does not hack a DNS server; instead, he inserts himself between you and the server and impersonates the server. For example, if a hacker wanted to take over fnark.
Then, he would put up his own DNS server, advertising it to everyone on the Internet as fnark.The name TCP/IP arose from the first two cooperating protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP), that resulted from the decomposition of the original Transmission Control Program, a monolithic communication protocol, into the first two layers of the communication suite.
This model was expanded to four. In this course ‘Introduction to TCP/IP,’ you will learn the operational functions of Internet technologies (which include IPv4, IPv6, TCP, UDP, addressing, routing, domain names, etc.) and your PC/laptop's security and gateway Internet setup and basic principles.
protocol characteristics library of network traffic management device. In this paper, we analyze the determinants of P2P protocol characteristics, the characteristics change of P2P software and coping.
TCP protocol operations may be divided into three phases. Connections must be properly established in a multi-step handshake process (connection establishment) before entering the data transfer srmvision.com data transmission is completed, the connection termination closes established virtual circuits and releases all allocated resources..
A TCP connection is managed by an operating system.
Introduction to TCP/IP from Yonsei University. You use the Internet through your PC (Personal Computer), laptop, tablet, smartpad, and smartphone every day in everything you do. Through your own PC/laptop, you can easily learn everything about. The Internet has revolutionized the computer and communications world like nothing before.
The invention of the telegraph, telephone, radio, and computer set the stage for this unprecedented integration of capabilities.