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NetBSD 6.1.5 - man page for security.conf (netbsd section 5)

SECURITY.CONF(5)		     BSD File Formats Manual			 SECURITY.CONF(5)

     security.conf -- daily security check configuration file

     The security.conf file specifies which of the standard /etc/security services are performed.
     The /etc/security script is run, by default, every night from /etc/daily, on a NetBSD sys-
     tem, if configured do to so from /etc/daily.conf.

     The variables described below can be set to "NO" to disable the test:

     check_passwd		This checks the /etc/master.passwd file for inconsistencies.

     check_group		This checks the /etc/group file for inconsistencies.

     check_rootdotfiles 	This checks the root users startup files for sane settings of
				$PATH and umask.  This test is not fail safe and any warning gen-
				erated from this should be checked for correctness.

     check_ftpusers		This checks that the correct users are in the /etc/ftpusers file.

     check_aliases		This checks for security problems in the /etc/mail/aliases file.
				For backward compatibility, /etc/aliases will be checked as well
				if exists.

     check_rhosts		This checks for system and user rhosts files with "+" in them.

     check_homes		This checks that home directories are owned by the correct user,
				and have appropriate permissions.

     check_varmail		This checks that the correct user owns mail in /var/mail, and
				that the mail box has the right permissions.

     check_nfs			This checks that the /etc/exports file does not export filesys-
				tems to the world.

     check_devices		This checks for changes to devices and setuid files.

     check_mtree		This runs mtree(8) to ensure that the system is installed cor-
				rectly.  The following configuration files are checked:

				      Default files to check.

				      Local site additions and overrides.

				      Specification for the directory DIR.

     check_disklabels		Backup text copies of the disklabels of available disk drives
				into /var/backups/work/disklabel.XXX, and display any differences
				in those and the previous copies as per check_changelist below.
				If fdisk(8) is available on the current platform, the output of
				/sbin/fdisk for each available disk drive is stored in
				/var/backups/work/fdisk.XXX, and any differences displayed as per
				the disklabels.

     check_pkgs 		This stores a list of all installed pkgs into
				/var/backups/work/pkgs and checks it for any changes.

     check_changelist		This determines a list of files from the contents of
				/etc/changelist, and the output of mtree -D for
				/etc/mtree/special and /etc/mtree/special.local.  For each file
				in the list it compares the files with their backups in
				/var/backups/file.current and /var/backups/file.backup, and dis-
				plays any differences found.  The following mtree(8) tags modify
				how files are determined from /etc/mtree/special and

				      exclude  The entry is ignored; no backups are made and the
					       differences are not displayed.  This includes
					       dynamic or binary files such as /var/run/utmp.

				      nodiff   The entry is backed up but the differences are not
					       displayed because the contents of the file are
					       sensitive.  This includes files such as

     check_pkg_vulnerabilities	Checks the currently installed packages against a database of
				known vulnerabilities and reports those that are vulnerable.
				Check the fetch_pkg_vulnerabilities setting in daily.conf(5) to
				keep the database up to date.

     check_pkg_signatures	Checks the digital signature of all files installed by packages
				against the expected values stored in the packages database.

     The variables described below can be set to modify the tests:

		    During the check_homes phase, allow the checked files to be group-writable if
		    the group name is the same as the username.

		    Lists filesystem types to ignore during the check_devices phase.  Prefixing
		    the type with a '!' inverts the match.  For example, 'procfs !local' will
		    ignore 'procfs' type filesystems and filesystems that are not 'local'.

		    Lists pathnames to ignore during the check_devices phase.  Prefixing the path
		    with a '!' inverts the match.  For example, '/tftp' will ignore paths under
		    /tftp while '!/home' will ignore paths that are not under /home.

		    During the check_mtree phase, instruct mtree to follow symbolic links.
		    Please note, this may cause the check_mtree phase to report errors for
		    entries for these symbolic links (i.e. of type=link in the mtree specifica-
		    tion) as they will always appear to be plain files for the purposes of the
		    check.  /etc/mtree/special.local may be used to override the checks for the
		    affected links.

		    If check_passwd is enabled, most warnings will be suppressed for entries
		    whose shells are listed in this space-separated list.  This is of particular
		    value when those shells are not in /etc/shells.

		    If check_passwd is enabled, suppress warnings for these users.

		    If check_passwd is enabled, do not warn about login names which use non-
		    alphanumeric characters.

		    If check_passwd is enabled, do not warn about password fields set to ``*''.
		    Note that the use of password fields such as ``*ssh'' is encouraged, instead.

     max_grouplen   If check_group is enabled, this determines the maximum permitted length of
		    group names.

     max_loginlen   If check_passwd is enabled, this determines the maximum permitted length of
		    login names.

     backup_dir     Change the backup directory from /var/backup.

     diff_options   Specify the options passed to diff(1) when it is invoked to show changes made
		    to system files.  Defaults to ``-u'', for unified-format context-diffs.

     pkgdb_dir	    DEPRECATED.  Please set PKGDB_DIR in pkg_install.conf(5) instead.

		    If defined, points to the location of the packages database.  Defaults to

		    Use rcs(1) for maintaining backup copies of files noted in check_devices,
		    check_disklabels, check_pkgs, and check_changelist instead of just keeping a
		    current copy and a backup copy.

     /etc/defaults/security.conf  defaults for /etc/security.conf
     /etc/security		  daily security check script
     /etc/security.conf 	  daily security check configuration
     /etc/security.local	  local site additions to /etc/security


     The security.conf file appeared in NetBSD 1.3.  The check_disklabels functionality was added
     in NetBSD 1.4.  The backup_uses_rcs and check_pkgs features were added in NetBSD 1.6.
     diff_options appeared in NetBSD 2.0; prior to that, traditional-format (context free) diffs
     were generated.

BSD					 February 5, 2010				      BSD

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