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crack_selinux(8)	     SELinux Policy crack	      crack_selinux(8)

NAME
       crack_selinux - Security Enhanced Linux Policy for the crack processes

DESCRIPTION
       Security-Enhanced Linux secures the crack processes via flexible manda‐
       tory access control.

       The crack processes execute with the  crack_t  SELinux  type.  You  can
       check  if  you have these processes running by executing the ps command
       with the -Z qualifier.

       For example:

       ps -eZ | grep crack_t

ENTRYPOINTS
       The crack_t SELinux type can be entered via the crack_exec_t file type.

       The default entrypoint paths for the crack_t domain are the following:

       /usr/sbin/crack_[a-z]*, /usr/sbin/cracklib-[a-z]*

PROCESS TYPES
       SELinux defines process types (domains) for each process running on the
       system

       You can see the context of a process using the -Z option to ps

       Policy  governs	the  access confined processes have to files.  SELinux
       crack policy is very flexible allowing users to setup their crack  pro‐
       cesses in as secure a method as possible.

       The following process types are defined for crack:

       crack_t

       Note:  semanage	permissive  -a crack_t can be used to make the process
       type crack_t permissive. SELinux does not  deny	access	to  permissive
       process	types, but the AVC (SELinux denials) messages are still gener‐
       ated.

BOOLEANS
       SELinux policy is customizable based on least access  required.	 crack
       policy is extremely flexible and has several booleans that allow you to
       manipulate the policy and run crack with the tightest access possible.

       If you want to deny any process from ptracing or	 debugging  any	 other
       processes,  you	must  turn  on	the  deny_ptrace  boolean.  Enabled by
       default.

       setsebool -P deny_ptrace 1

       If you want to allow all domains to use other domains file descriptors,
       you must turn on the domain_fd_use boolean. Enabled by default.

       setsebool -P domain_fd_use 1

       If  you	want to allow all domains to have the kernel load modules, you
       must  turn  on  the  domain_kernel_load_modules	boolean.  Disabled  by
       default.

       setsebool -P domain_kernel_load_modules 1

       If you want to allow all domains to execute in fips_mode, you must turn
       on the fips_mode boolean. Enabled by default.

       setsebool -P fips_mode 1

       If you want to enable reading of urandom for all domains, you must turn
       on the global_ssp boolean. Disabled by default.

       setsebool -P global_ssp 1

MANAGED FILES
       The SELinux process type crack_t can manage files labeled with the fol‐
       lowing file types.  The paths listed are the default  paths  for	 these
       file types.  Note the processes UID still need to have DAC permissions.

       crack_db_t

	    /usr/share/cracklib(/.*)?
	    /var/cache/cracklib(/.*)?
	    /usr/lib/cracklib_dict.*

       crack_tmp_t

FILE CONTEXTS
       SELinux requires files to have an extended attribute to define the file
       type.

       You can see the context of a file using the -Z option to ls

       Policy governs the access  confined  processes  have  to	 these	files.
       SELinux	crack  policy  is  very flexible allowing users to setup their
       crack processes in as secure a method as possible.

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the crack, if you wanted  to
       store  files  with  these types in a diffent paths, you need to execute
       the semanage command  to	 sepecify  alternate  labeling	and  then  use
       restorecon to put the labels on disk.

       semanage fcontext -a -t crack_db_t '/srv/crack/content(/.*)?'
       restorecon -R -v /srv/mycrack_content

       Note:  SELinux  often  uses  regular expressions to specify labels that
       match multiple files.

       The following file types are defined for crack:

       crack_db_t

       - Set files with the crack_db_t type, if you want to treat the files as
       crack database content.

       Paths:
	    /usr/share/cracklib(/.*)?,		    /var/cache/cracklib(/.*)?,
	    /usr/lib/cracklib_dict.*

       crack_exec_t

       - Set files with the crack_exec_t type, if you want  to	transition  an
       executable to the crack_t domain.

       Paths:
	    /usr/sbin/crack_[a-z]*, /usr/sbin/cracklib-[a-z]*

       crack_tmp_t

       -  Set files with the crack_tmp_t type, if you want to store crack tem‐
       porary files in the /tmp directories.

       Note: File context can be temporarily modified with the chcon  command.
       If  you want to permanently change the file context you need to use the
       semanage fcontext command.  This will modify the SELinux labeling data‐
       base.  You will need to use restorecon to apply the labels.

COMMANDS
       semanage	 fcontext  can also be used to manipulate default file context
       mappings.

       semanage permissive can also be used to manipulate  whether  or	not  a
       process type is permissive.

       semanage	 module can also be used to enable/disable/install/remove pol‐
       icy modules.

       semanage boolean can also be used to manipulate the booleans

       system-config-selinux is a GUI tool available to customize SELinux pol‐
       icy settings.

AUTHOR
       This manual page was auto-generated using sepolicy manpage .

SEE ALSO
       selinux(8), crack(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
       , setsebool(8)

crack				   13-11-20		      crack_selinux(8)
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