# time.conf

## NAME



           time.conf - configuration file for the pam_time module
    


## DESCRIPTION



           The pam_time PAM module does not authenticate the user, but
           instead it restricts access to a system and or specific
           applications at various times of the day and on specific days or
           over various terminal lines. This module can be configured to deny
           access to (individual) users based on their name, the time of day,
           the day of week, the service they are applying for and their
           terminal from which they are making their request.
    
           For this module to function correctly there must be a correctly
           formatted /etc/security/time.conf file present. White spaces are
           ignored and lines maybe extended with '\' (escaped newlines). Text
           following a '#' is ignored to the end of the line.
    
           The syntax of the lines is as follows:
    
           _services_ ;_ttys_ ;_users_ ;_times_
    
           In words, each rule occupies a line, terminated with a newline or
           the beginning of a comment; a '**#** '. It contains four fields
           separated with semicolons, '**;** '.
    
           The first field, the _services_ field, is a logic list of PAM
           service names that the rule applies to.
    
           The second field, the _tty_ field, is a logic list of terminal names
           that this rule applies to.
    
           The third field, the _users_ field, is a logic list of users or a
           netgroup of users to whom this rule applies.
    
           A logic list namely means individual tokens that are optionally
           prefixed with '!' (logical not) and separated with '&' (logical
           and) and '|' (logical or).
    
           For these items the simple wildcard '*' may be used only once.
           With netgroups no wildcards or logic operators are allowed.
    
           The _times_ field is used to indicate the times at which this rule
           applies. The format here is a logic list of day/time-range
           entries. The days are specified by a sequence of two character
           entries, MoTuSa for example is Monday Tuesday and Saturday. Note
           that repeated days are unset MoMo = no day, and MoWk = all
           weekdays bar Monday. The two character combinations accepted are
           Mo Tu We Th Fr Sa Su Wk Wd Al, the last two being week-end days
           and all 7 days of the week respectively. As a final example, AlFr
           means all days except Friday.
    
           Each day/time-range can be prefixed with a '!' to indicate
           "anything but". The time-range part is two 24-hour times HHMM,
           separated by a hyphen, indicating the start and finish time (if
           the finish time is smaller than the start time it is deemed to
           apply on the following day).
    
           For a rule to be active, ALL of service+ttys+users must be
           satisfied by the applying process.
    
           Note, currently there is no daemon enforcing the end of a session.
           This needs to be remedied.
    
           Poorly formatted rules are logged as errors using syslog(3).
    


## EXAMPLES



           These are some example lines which might be specified in
           /etc/security/time.conf.
    
           All users except for _root_ are denied access to console-login at
           all times:
    
               login ; tty* & !ttyp* ; !root ; !Al0000-2400
    
           Games (configured to use PAM) are only to be accessed out of
           working hours. This rule does not apply to the user _waster_ :
    
               games ; * ; !waster ; Wd0000-2400 | Wk1800-0800
    


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