Discuss what NIS is and the setup and uses of NIS servers in a Linux environment. Consider a scen...
Discuss what NIS is and the setup and uses of NIS servers in a Linux environment.
Consider a scenario where you have to setup one such server for your institution, discuss its setting in an institution and what purpose it could serve and whether or not you will require a Master Server.
Please provide more than 250 words
Homework Answers
The NIS or the Network Information system is the administration system that are used for smaller networks and is being developed by Sun Microsystems. Nis works similar to the DNS and it is being designed for smaller networks. It can be used in LANs. The NIS uses a client/server model and the RPC interface for communication between the host Linux machines. The NIS uses a server, administrative tools and client programs. NIS is basically implemented with the Network File System of the Linux Operating system.
Nis allows authentication and also logon information that are to be stored on the centrally located server. This actually includes the password and the username for login authentication. For configuring a NIS server, a server and a client machine must be required and then the /etc/hosts files are updated on both the machine. Lastly, running the portmap and xinetd services to complete the configuration.
Based on the scenario, the NIS can be configured within the LAN and it could serve the purpose as well but on a very small scale. It does require a master server to configure. Because NFS can be configured in a normal server as well. With that NFS, the NIS configuration can also be performed. And once the configuration is done. The master server will act as a central repository for hosting all the configuration and also maintains an authoritative copy of files that are used by the NIS clients. Similar way the NIS client will authenticate by the NIS server during the logon process. Passwd, group and even the host files are being shared by the NIS.
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