Lesson plan

Group (database)

Group is a name service database used to store group information on Unix-like operating systems. The sources for the group database (and hence the sources for groups on a system) are configured, like other name service databases, in nsswitch.conf. The database file is located at /etc/group . It contains fields representing the group name, group id, encrypted password, and users belonging to the group. These fields are stored in a structure defined in the header file .

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Article summary

Group is a name service database used to store group information on Unix-like operating systems. The sources for the group database (and hence the sources for groups on a system) are configured, like other name service databases, in nsswitch.conf. The database file is located at /etc/group . It contains fields representing the group name, group id, encrypted password, and users belonging to the group. These fields are stored in a structure defined in the header file .

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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