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 mandatory 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 generated.

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 following 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 temporary 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 database.	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 policy modules.

       semanage boolean can also be used to manipulate the booleans

       system-config-selinux is a GUI tool available to customize SELinux policy 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								     14-06-10							  crack_selinux(8)