LOGIN.ACCESS(5) BSD File Formats Manual LOGIN.ACCESS(5)
NAME
login.access -- login access control table
DESCRIPTION
The login.access file specifies on which ttys or from which hosts certain users are allowed to login.
At login, the /etc/login.access file is checked for the first entry that matches a specific user/host or user/tty combination. That entry can
either allow or deny login access to that user.
Each entry have three fields separated by colon:
o The first field indicates the permission given if the entry matches. It can be either ``+'' (allow access) or ``-'' (deny access) .
o The second field is a comma separated list of users or groups for which the current entry applies. NIS netgroups can used (if configured)
if preceeded by @. The magic string ALL matches all users. A group will match if the user is a member of that group, or it is the user's
primary group.
o The third field is a list of ttys, or network names. A network name can be either a hostname, a domain (indicated by a starting period),
or a netgroup. As with the user list, ALL matches anything. LOCAL matches a string not containing a period.
If the string EXCEPT is found in either the user or from list, the rest of the list are exceptions to the list before EXCEPT.
BUGS
If there's a user and a group with the same name, there is no way to make the group match if the user also matches.
SEE ALSO
login(1)
AUTHORS
The login_access() function was written by Wietse Venema. This manual page was written for Heimdal.
HEIMDAL
March 21, 2003 HEIMDAL