Virtual Private Networks (VPNs) enable users to connect to a remote private network through the Internet. Virtual private networks therefore span the Internet because the user connects over the Internet to the remote VPN server. With a VPN, data is first encrypted and encapsulated before it is sent to the remote VPN server. When the …
An Overview on Secure Sockets Layer (SSL) The Secure Sockets Layer (SSL) protocol was developed by Netscape Communications, and enables secure communication over the Internet. SSL works at the transport layer of Transmission Control Protocol/Internet Protocol (TCP/IP), which makes the protocol independent of the application layer protocol functioning on top of it. SSL is an …
Installing TCP/IP TCP/IP is installed automatically when the Windows Server 2003 setup process runs. It is not usually necessary to install TCP/IP after the Windows Server 2003 setup process completed. The instances when you might need to manually install TCP/IP are listed below: TCP/IP was disabled when the Windows Server 2003 setup process executed. TCP/IP …
Internet Connectivity Introduction In most organizations and networks today, Internet connectivity is no longer an additional option, but a necessity. Most organizations that have a networking environment need to provide its employees or users with some form of connectivity to the Internet. E-mail and Web sites have evolved into being important mechanisms for a vast …
NetBEUI (NetBIOS Extended User Interface) is a program used for communication between applications installed on separate computers within the same LAN (Local Area Network). It is an upgraded version of NetBIOS and provides much more flexibility and functionality by rearranging the information in a data transmission. Like NetBIOS, NetBEUI is not a networking protocol and …
A protocol is a collection of specifications or rules for data packets that enable information to be sent over the network. Network protocols are designed for network communication. In order to understand the different protocols available and their efficiencies, lets first look at the Open Systems Interconnection (OSI) reference model. This is the standard model …
NetBIOS, broadcasts names to listening nodes on the network. NetBIOS utilizes a User Datagram Protocol (UDP) query to broadcast names. NetBIOS names identified computers on the network before the introduction of Windows 2000. The NetBIOS name is resolved to an IP address through Windows Internet Name Service (WINS), broadcasting, or the LMHOSTS file. If the …
A NetBIOS name is an identifier that NetBIOS services running on a computer use. It is a combination of a 15 character (byte) name and a 16th character denoting the service. These names identify resources on the NetBIOS network. NetBIOS cannot do name resolution on the Internet because NetBIOS names are single part names and …
Monitoring Network Activity with Network Monitor The tool which you can utilize to both monitor and log network activity as it occurs on the network is the Network Monitor. You can use the information obtained from Network Monitor to optimize network traffic as well. Network Monitor stems directly from the Windows NT Network Monitor. Network …
Understanding the Limitations of IPv4 Before moving on the to an in-depth discussion of IPv6, lets first look at the limitations of IPv4: The IPv4 addresses are somewhat scarce, even though it allows for 4,294,967,296 possible addresses. Because of this limitation, organizations are forced to utilize Network Address Translator (NAT) to map a public IP …