By Timothy Parker
An exceptional introductory educational at the gateway and routing protocols of the net. Overviews open platforms, criteria, and alertness of protocols in a variety of environments (Windows, DOS, UNIX, etc..). Covers IP models, headers, datagrams, ports, connections, and sockets. Discusses routing applied sciences and daemons. Explains networks, Telent, ftp, and TCP/IP companies. exhibits how one can manage a pattern community client/server. Explains area identify prone (DNS), the community dossier method (NFS), and the community info carrier (NIS). Concludes with administration and troubleshooting techniques and a dialogue of the socket programming interface. Examines the family members of Transmission keep an eye on and web Protocols (TCP/IP) with adequate element and stability to offer an excellent clutch of the general expertise (without the overpowering arcane technological and programming details).
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Extra info for Teach Yourself TCP/IP in 14 Days
Sample text
Network File System Network File System (NFS) is a set of protocols developed by Sun Microsystems to enable multiple machines to access each other's directories transparently. They accomplish this by using a distributed file system scheme. NFS systems are common in large corporate environments, especially those that use UNIX workstations. Remote Procedure Call The Remote Procedure Call (RPC) protocol is a set of functions that enable an application to communicate with another machine (the server).
In the same manner, a network that requires encryption instead of clear-text datagrams can affect the decoding of header information. Therefore, differences in the security implemented on the subnetworks can affect datagram traffic. These differences can all be resolved with software, but the problems associated with addressing methods can become considerable. Another common problem is the different networks' tolerance for timing problems. Timeout and retry values might differ, so when two subnetworks are trying to establish communication, one might have given up and moved on to another task while the second is still waiting patiently for an acknowledgment signal.
It is easier to think of this process as layers on an onion. The inside is the data that is to be sent. As it passes through each layer of the OSI model, another layer of onion skin is added. When it is finished moving through the layers, several protocol headers are enclosing the data. When the datagram is passed back up the layers (probably on another machine), each layer peels off the protocol header that corresponds to the layer. When it reaches the destination layer, only the data is left.