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107 lines
3.5 KiB
Plaintext
107 lines
3.5 KiB
Plaintext
7 years ago
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#
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# This is the configuration file for the pam_group module.
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#
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#
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# *** Please note that giving group membership on a session basis is
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# *** NOT inherently secure. If a user can create an executable that
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# *** is setgid a group that they are infrequently given membership
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# *** of, they can basically obtain group membership any time they
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# *** like. Example: games are allowed between the hours of 6pm and 6am
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# *** user joe logs in at 7pm writes a small C-program toplay.c that
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# *** invokes their favorite shell, compiles it and does
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# *** "chgrp play toplay; chmod g+s toplay". They are basically able
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# *** to play games any time... You have been warned. AGM
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#
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#
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# The syntax of the lines is as follows:
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#
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# services;ttys;users;times;groups
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#
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# white space is ignored and lines maybe extended with '\\n' (escaped
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# newlines). From reading these comments, it is clear that
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# text following a '#' is ignored to the end of the line.
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#
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# the combination of individual users/terminals etc is a logic list
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# namely individual tokens that are optionally prefixed with '!' (logical
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# not) and separated with '&' (logical and) and '|' (logical or).
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#
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# services
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# is a logic list of PAM service names that the rule applies to.
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#
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# ttys
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# is a logic list of terminal names that this rule applies to.
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#
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# users
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# is a logic list of users or a netgroup of users to whom this
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# rule applies.
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#
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# NB. For these items the simple wildcard '*' may be used only once.
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# With netgroups no wildcards or logic operators are allowed.
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#
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# times
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# It is used to indicate "when" these groups are to be given to the
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# user. The format here is a logic list of day/time-range
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# entries the days are specified by a sequence of two character
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# entries, MoTuSa for example is Monday Tuesday and Saturday. Note
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# that repeated days are unset MoMo = no day, and MoWk = all weekdays
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# bar Monday. The two character combinations accepted are
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#
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# Mo Tu We Th Fr Sa Su Wk Wd Al
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#
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# the last two being week-end days and all 7 days of the week
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# respectively. As a final example, AlFr means all days except Friday.
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#
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# Each day/time-range can be prefixed with a '!' to indicate "anything
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# but"
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#
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# The time-range part is two 24-hour times HHMM separated by a hyphen
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# indicating the start and finish time (if the finish time is smaller
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# than the start time it is deemed to apply on the following day).
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#
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# groups
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# The (comma or space separated) list of groups that the user
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# inherits membership of. These groups are added if the previous
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# fields are satisfied by the user's request
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#
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# For a rule to be active, ALL of service+ttys+users must be satisfied
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# by the applying process.
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#
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#
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# Note, to get this to work as it is currently typed you need
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#
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# 1. to run an application as root
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# 2. add the following groups to the /etc/group file:
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# floppy, play, sound
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#
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#
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# Here is a simple example: running 'xsh' on tty* (any ttyXXX device),
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# the user 'us' is given access to the floppy (through membership of
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# the floppy group)
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#
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#xsh;tty*&!ttyp*;us;Al0000-2400;floppy
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#
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# another example: running 'xsh' on tty* (any ttyXXX device),
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# the user 'sword' is given access to games (through membership of
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# the sound and play group) after work hours.
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#
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#xsh; tty* ;sword;!Wk0900-1800;sound, play
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#xsh; tty* ;*;Al0900-1800;floppy
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#
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# yet another example: any member of the group 'admin' running
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# 'xsh' on tty*, is granted access (at any time) to the group 'plugdev'
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#
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#xsh; tty* ;%admin;Al0000-2400;plugdev
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#
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# End of group.conf file
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#
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