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Lesson 11

Network Concepts Conclusion

In this module, you examined the NIS system for sharing configuration information across a UNIX network. Now that you’ve completed this module, you should be able to:
  1. List the reasons for using NIS on a UNIX system
  2. Describe how NIS works
  3. List the critical configuration files NIS uses
  4. List the main NIS commands
  5. Describe how to integrate NIS into a UNIX system
  6. Set up a NIS master server and several NIS clients
  7. Enable network users to change their passwords
  8. Add new users to an NIS database
  9. Troubleshoot NIS problems

Key terms

In this module, we used the following terms:
  1. NIS: Network Information System (NIS) is a system for creating a distributed computing environment on a local network. NIS provides a network database of important configuration information and helps bind a network of machines into a single usable entity.
  2. NIS map: NIS maps are a collection of database files that represent the data shared by the members of an NIS domain.

Commands and daemons

In this module, we discussed the following commands and daemons:
Command Purpose
Nisdomainname (on Linux) domainname
(on other types of UNIX)
Queries and sets the NIS domain name
make Rebuilds NIS maps after a change
makedbm Creates NIS maps
ypcat Lists NIS maps from the NIS server
ypmatch Looks up a key in an NIS map
yppasswd Changes passwords in the NIS passwd map
ypwhich Displays NIS server that ypbind is consulting

DaemonPurpose
ypbind NIS client process
ypserv NIS server process
rpc.yppasswd Updates the NIS password map to change user passwords

Network Information Service - Quiz

Click the Quiz link below to take a multiple-choice quiz covering what you’re learned in this module.
Network Information Service - Quiz