| What is meant by Transparency in Networking? What are the types of Transparency? What is distribution transparency? In firewall technology where is transparency defined? Why do we need network transparency? In the Sun Microsystem Network File System how can a user access shared files? Explain how the NFS works and how does it benefit users with easy access of data? |
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Transparency in networking or network transparency is the condition where an operating system or other service lets a user access a resource like data or a program without knowing whether the resource is located on the local computer or on a remote computer. It is a major feature of Linux and other UNIX-like operating systems.
It is also a main convenience to users because it eases them from getting involved about the network structure details and the need to take special steps to access remote data. Network transparency also helps in simplifying the tasks of system administrators and program developers. A number of methods have been developed to allow network transparency.
One example is the NFS or Network File System which was created to let users mount a hard drive partition [HDD or hard disk drive] located on a remote computer and uses its contents as if the files or programs were located on the local computer or local machine.
Transparency in Networking:
Network Transparency is situation in which user is allowed to access resource where he doesn’t know weather he is using resources from local machine or remote machine.
Types of Transparency:
Databases
Firewalls
Distribution Transparency:
In DDBMS (Distributed Database Management Systems) transparency hides all the complexities which allow user to think that they are working on a single centralized system.
In firewall technology transparency is defined at Application Layer, Internet layer or at IP address.
We need Network Transparency to protect the data from unauthorized users.
User can access shared files by using the distributed file system protocols.
NFS(Network File System) is a protocol used for distributed file systems developed by Sun Microsystems. It allows user to access files through network like local storage. Client and server can access storage by using its predefined protocols.
It is easy way to access data because you don’t need any additional storage you simply can access data through network access.
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Transparency in networking is defined as the ability of a networking method to perform in a way that is not visible to the user. A few types of transparency are access transparency, location transparency, and concurrent transparency. The essential shared quality that makes them all transparent is that the user has no awareness of how the system is accessing or managing information and data. Distribution transparency is location transparency which specifically means that the user is not aware of where a resource is physically located on a distributed system. The importance of this method or practice is that it allows for ease-of-use and it is also a bit of a security measure. It is also a part of system stability. Within firewall technology, transparency is defined as the client targeting the real IP address of the server.
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The Sun Microsystem network file system is a distributed file system which allows a user to access files over a network with the same ease as accessing local files. Those files are accessible from many points making file sharing very easy, but this also presents a security issue.
