What Is Server Cannot Be Found?
Many applications rely on servers. A computer user may use many servers during the course of the day. The existence of these servers usually only becomes known to the user when their absence stops a program on the local computer from working. Receiving a Server Cannot Be Found message can occur for a number of reasons, including if the servers have been moved or are temporarily overloaded.
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Definition
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A server is not a component of the computer, nor is it a program the user has on his computer. The server is another computer. Regular network communication follows the client-server model. This model involves two computers, or applications. The client is the local computer and the server is a much bigger, remote computer. The client application, running on the local computer, needs a service or resource from the server program running on the remote computer.
Networking
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Client-server systems can only work over networks. The centralized server serves many clients. So the server and all the clients it serves have to be connected over the Internet. The client does not have to be directly connected by one cable to the server. The server may be thousands of miles away and accessed over the Internet, which means communication between the two computers crosses many networks each time a message is sent in either direction. The contact between the two computers is always started by the client with a request. The server replies with a response.
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Benefits
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The creation of servers enabled more efficient use of resources. Functions that require a large amount of hardware are centralized, making client computers cheaper and easier to manage. The server needs to be faster and have more storage than a regular computer in order to fulfill its role. Servers remove repetition of data because all of the users who require a piece of information allow a centralized server to store it on their behalf, thus replacing many local copies with one central copy that can be accessed by everyone.
Detractions
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The big problem with the client-server architecture is that it places part of the resources a program needs out of the control of the computer user. This is best illustrated by the Server Cannot Be Found error message. The local program was designed to require services from a server and cannot function correctly without contact with that server. The reasons the server may be out of reach are usually because there is a network error, or the server has been removed, moved or turned off. Overloading of demand on a server can also cause it to reject new requests, making the server temporarily unavailable.
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References
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