  user accounts
  Introduction


  User accounts in Linux are all stored in the same database.  Linuxconf
  splits these accounts into different categories based on known prac-
  tices. Each category has its own menu entry.

  1.  Normal accounts


  1.1.  Edit/Create user accounts

  This is the menu to use to create normal shell accounts.


  1.2.  group definitions

  Users are member of groups. Use this menu to create and manage groups.


  1.3.  Change root password

  Use this menu to change the superuser password (root)


  2.  Special accounts

  Many user accounts are used to control specific tasks. These accounts
  are special purpose. They have a user ID and belong to a group. They
  also have a password. These accounts are not meant for human beings
  though.


  2.1.  Edit/Create PPP accounts via normal login

  These accounts let a remote machine connect and establish a network
  connection using the PPP protocol. The remote system must identify
  itself using a standard chat sequence, sending its user name followed
  by a password.


  2.2.  PPP accounts via PAP authentication


  These accounts are meant for authentication using the PAP protocol.
  The user name and password are exchanged using a special protocol
  defined in the PPP standard.


  2.3.  PPP accounts via CHAP authentication

  Same as for the PPP accounts above, except that a different, more
  secure, protocol is used to exchange authentication.


  2.4.  SLIP accounts via normal login

  SLIP is another way of establishing a network connection between two
  computers over a serial line (modem).


  2.5.  UUCP account

  UUCP is the Unix to Unix Communication Protocol. This is a batch
  oriented data transfer. It allows unattended exchange of files (and
  email) between two computers. It provides a very inexpensive but
  highly reliable way to automate data exchange. It is probably the best
  way (by far) to receive and send email on the internet unless you have
  a dedicated connection with your service provider.

  See the networking section of Linuxconf to configure UUCP.


  2.6.  POP accounts (mail only)

  POP acccounts are restricted accounts. Users can't get a shell. They
  are generally used to retrieve email using the POP (Post Office
  Protocol). They can also be used  to connect to other services such as
  Samba (file and print service for PCs machines).


  2.7.  Virtual POP accounts (mail only)

  These accounts are even more restricted. They allow retrieval of email
  using the POP protocol, from virtual email domains. See the menu
  "Networking/mail delivery system (sendmail)" to configure virtual
  email domains.


  3.  Email aliases

  Email aliases may be considered special virtual user accounts. They
  allow the redirection of email from one account (which may or may not
  exist) to one or more other email addresses.


  3.1.  Edit/Create main domain user aliases

  Use this to manage aliases for the main email domain.


  3.2.  virtual domain user aliases

  This lets you do the same for each virtual email domain.


  4.  Other stuff


  4.1.  Password & account policies

  You can control the rules for password validation and some default
  operating parameters associated with the accounts.


  4.2.  Policies for virtual domains

  You can specify defaults on a virtual per virtual domain basis.


  4.3.  Available user shells

  Many shells are available in Linux. You define them here.


  4.4.  Available PPP shells

  These shells control the parameters of a PPP session.



  4.5.  Available SLIP shells

  These shells control the parameters of a SLIP session.































































