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MAC_SEEOTHERUIDS(4)    FreeBSD Kernel Interfaces Manual	   MAC_SEEOTHERUIDS(4)

NAME
     mac_seeotheruids -- simple	policy controlling whether users see other
     users

SYNOPSIS
     To	compile	the policy into	your kernel, place the following lines in your
     kernel configuration file:

	   options MAC
	   options MAC_SEEOTHERUIDS

     Alternately, to load the module at	boot time, place the following line in
     your kernel configuration file:

	   options MAC

     and in loader.conf(5):

	   mac_seeotheruids_load="YES"

DESCRIPTION
     The mac_seeotheruids policy module, when enabled, denies users to see
     processes or sockets owned	by other users.

     To	enable mac_seeotheruids, set the sysctl	OID
     security.mac.seeotheruids.enabled to 1.

     To	allow users to see processes and sockets owned by the same primary
     group, set	the sysctl OID security.mac.seeotheruids.primarygroup_enabled
     to	1.

     To	allow processes	with a specific	group ID to be exempt from the policy,
     set the sysctl OID	security.mac.seeotheruids.specificgid_enabled to 1,
     and security.mac.seeotheruids.specificgid to the group ID to be exempted.

   Label Format
     No	labels are defined for mac_seeotheruids.

SEE ALSO
     mac(4), mac_biba(4), mac_bsdextended(4), mac_ifoff(4), mac_lomac(4),
     mac_mls(4), mac_none(4), mac_partition(4),	mac_portacl(4),	mac_test(4),
     mac(9)

HISTORY
     The mac_seeotheruids policy module	first appeared in FreeBSD 5.0 and was
     developed by the TrustedBSD Project.

AUTHORS
     This software was contributed to the FreeBSD Project by Network Asso-
     ciates Labs, the Security Research	Division of Network Associates Inc.
     under DARPA/SPAWAR	contract N66001-01-C-8035 (``CBOSS''), as part of the
     DARPA CHATS research program.

BUGS
     See mac(9)	concerning appropriateness for production use.	The TrustedBSD
     MAC Framework is considered experimental in FreeBSD.

     While the MAC Framework design is intended	to support the containment of
     the root user, not	all attack channels are	currently protected by entry
     point checks.  As such, MAC Framework policies should not be relied on,
     in	isolation, to protect against a	malicious privileged user.

FreeBSD	6.0		       December	8, 2002			   FreeBSD 6.0

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY | AUTHORS | BUGS

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