126 lines
4.6 KiB
Plaintext
126 lines
4.6 KiB
Plaintext
# Login access control table.
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#
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# Comment line must start with "#", no space at front.
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# Order of lines is important.
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#
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# When someone logs in, the table is scanned for the first entry that
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# matches the (user, host) combination, or, in case of non-networked
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# logins, the first entry that matches the (user, tty) combination. The
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# permissions field of that table entry determines whether the login will
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# be accepted or refused.
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#
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# Format of the login access control table is three fields separated by a
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# ":" character:
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#
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# [Note, if you supply a 'fieldsep=|' argument to the pam_access.so
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# module, you can change the field separation character to be
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# '|'. This is useful for configurations where you are trying to use
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# pam_access with X applications that provide PAM_TTY values that are
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# the display variable like "host:0".]
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#
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# permission : users : origins
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#
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# The first field should be a "+" (access granted) or "-" (access denied)
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# character.
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#
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# The second field should be a list of one or more login names, group
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# names, or ALL (always matches). A pattern of the form user@host is
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# matched when the login name matches the "user" part, and when the
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# "host" part matches the local machine name.
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#
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# The third field should be a list of one or more tty names (for
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# non-networked logins), host names, domain names (begin with "."), host
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# addresses, internet network numbers (end with "."), ALL (always
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# matches), NONE (matches no tty on non-networked logins) or
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# LOCAL (matches any string that does not contain a "." character).
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#
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# You can use @netgroupname in host or user patterns; this even works
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# for @usergroup@@hostgroup patterns.
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#
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# The EXCEPT operator makes it possible to write very compact rules.
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#
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# The group file is searched only when a name does not match that of the
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# logged-in user. Both the user's primary group is matched, as well as
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# groups in which users are explicitly listed.
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# To avoid problems with accounts, which have the same name as a group,
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# you can use brackets around group names '(group)' to differentiate.
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# In this case, you should also set the "nodefgroup" option.
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#
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# TTY NAMES: Must be in the form returned by ttyname(3) less the initial
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# "/dev" (e.g. tty1 or vc/1)
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#
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##############################################################################
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#
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# Disallow non-root logins on tty1
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#
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#-:ALL EXCEPT root:tty1
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#
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# Disallow console logins to all but a few accounts.
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#
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#-:ALL EXCEPT wheel shutdown sync:LOCAL
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#
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# Same, but make sure that really the group wheel and not the user
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# wheel is used (use nodefgroup argument, too):
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#
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#-:ALL EXCEPT (wheel) shutdown sync:LOCAL
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#
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# Disallow non-local logins to privileged accounts (group wheel).
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#
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#-:wheel:ALL EXCEPT LOCAL .win.tue.nl
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#
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# Some accounts are not allowed to login from anywhere:
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#
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#-:wsbscaro wsbsecr wsbspac wsbsym wscosor wstaiwde:ALL
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#
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# All other accounts are allowed to login from anywhere.
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#
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##############################################################################
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# All lines from here up to the end are building a more complex example.
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##############################################################################
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#
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# User "root" should be allowed to get access via cron .. tty5 tty6.
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#+ : root : cron crond :0 tty1 tty2 tty3 tty4 tty5 tty6
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#
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# User "root" should be allowed to get access from hosts with ip addresses.
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#+ : root : 192.168.200.1 192.168.200.4 192.168.200.9
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#+ : root : 127.0.0.1
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#
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# User "root" should get access from network 192.168.201.
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# This term will be evaluated by string matching.
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# comment: It might be better to use network/netmask instead.
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# The same is 192.168.201.0/24 or 192.168.201.0/255.255.255.0
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#+ : root : 192.168.201.
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#
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# User "root" should be able to have access from domain.
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# Uses string matching also.
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#+ : root : .foo.bar.org
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#
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# User "root" should be denied to get access from all other sources.
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#- : root : ALL
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#
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# User "foo" and members of netgroup "nis_group" should be
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# allowed to get access from all sources.
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# This will only work if netgroup service is available.
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#+ : @nis_group foo : ALL
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#
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# User "john" should get access from ipv4 net/mask
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#+ : john : 127.0.0.0/24
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#
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# User "john" should get access from ipv4 as ipv6 net/mask
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#+ : john : ::ffff:127.0.0.0/127
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#
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# User "john" should get access from ipv6 host address
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#+ : john : 2001:4ca0:0:101::1
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#
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# User "john" should get access from ipv6 host address (same as above)
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#+ : john : 2001:4ca0:0:101:0:0:0:1
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#
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# User "john" should get access from ipv6 net/mask
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#+ : john : 2001:4ca0:0:101::/64
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#
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# All other users should be denied to get access from all sources.
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#- : ALL : ALL
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-:ALL EXCEPT wheel sync:console
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-:wheel:ALL EXCEPT LOCAL
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