LOGIN.ACCESS(5) 					      BSD File Formats Manual						   LOGIN.ACCESS(5)

NAME

     login.access -- login access control table

DESCRIPTION

     The login.access file specifies (user, host) combinations and/or (user, tty) combinations for which a login will be either accepted or
     refused.

     When someone logs in, the login.access is scanned for the first entry that matches the (user, host) combination, or, in case of non-networked
     logins, the first entry that matches the (user, tty) combination.	The permissions field of that table entry determines whether the login
     will be accepted or refused.

     Each line of the login access control table has three fields separated by a ':' character: permission:users:origins

     The first field should be a "+" (access granted) or "-" (access denied) character.  The second field should be a list of one or more login
     names, group names, or ALL (always matches).  The third field should be a list of one or more tty names (for non-networked logins), host
     names, domain names (begin with "."), host addresses, internet network numbers (end with "."), ALL (always matches) or LOCAL (matches any
     string that does not contain a "." character).  If you run NIS you can use @netgroupname in host or user patterns.

     The EXCEPT operator makes it possible to write very compact rules.

     The group file is searched only when a name does not match that of the logged-in user.  Only groups are matched in which users are explicitly
     listed: the program does not look at a user's primary group id value.

FILES

     /etc/login.access	The login.access file resides in /etc.

SEE ALSO

     login(1), pam(8)

AUTHORS

     Guido van Rooij

BSD
								  April 30, 1994							       BSD