Wednesday, August 5, 2009

Important '/etc' Files

/etc files

there are a lot of files on a *nix system. you are aware that the /etc directory generally contains .conf files. '.conf' are configuration files. There are other configuration files that are used by the system. I am attempting to list out a few important ones that you might need to know.

  • fstab - FileSystemTable, contains all mapping information about file systems to devices
  • mtab - Contains the currently mounted file systems
  • group - The groups defined on the system
  • inittab - The config file for the Init process when the system starts
  • motd - The Message Of the day, shows up when you log in (Try on Dunk, it gives you the long welcome message)
  • passwd - The user information file
  • shadow - The file that contains pasword hashes
  • profile - The script that runs and sets the global defaults for all users

You can read further into the contents of these files to get an idea of what they contain and what you need to change and can change.

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