cupsd_lpd_selinux man page on Oracle

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cupsd_lpd_selinux(8)	   SELinux Policy cupsd_lpd	  cupsd_lpd_selinux(8)

NAME
       cupsd_lpd_selinux  -  Security  Enhanced Linux Policy for the cupsd_lpd
       processes

DESCRIPTION
       Security-Enhanced Linux secures the cupsd_lpd  processes	 via  flexible
       mandatory access control.

       The  cupsd_lpd processes execute with the cupsd_lpd_t SELinux type. You
       can check if you have these processes running by executing the ps  com‐
       mand with the -Z qualifier.

       For example:

       ps -eZ | grep cupsd_lpd_t

ENTRYPOINTS
       The  cupsd_lpd_t	 SELinux  type can be entered via the cupsd_lpd_exec_t
       file type.

       The default entrypoint paths for the cupsd_lpd_t domain are the follow‐
       ing:

       /usr/lib/cups/daemon/cups-lpd

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
       cupsd_lpd  policy  is  very  flexible  allowing	users  to  setup their
       cupsd_lpd processes in as secure a method as possible.

       The following process types are defined for cupsd_lpd:

       cupsd_lpd_t

       Note: semanage permissive -a  cupsd_lpd_t  can  be  used	 to  make  the
       process	type  cupsd_lpd_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.
       cupsd_lpd policy is extremely flexible and has  several	booleans  that
       allow  you to manipulate the policy and run cupsd_lpd with the tightest
       access possible.

       If you want to allow users to resolve user passwd entries directly from
       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
       gin_nsswitch_use_ldap boolean. Disabled by default.

       setsebool -P authlogin_nsswitch_use_ldap 1

       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

       If  you	want  to allow confined applications to run with kerberos, you
       must turn on the kerberos_enabled boolean. Enabled by default.

       setsebool -P kerberos_enabled 1

       If you want to allow system to run with	NIS,  you  must	 turn  on  the
       nis_enabled boolean. Disabled by default.

       setsebool -P nis_enabled 1

       If  you	want to allow confined applications to use nscd shared memory,
       you must turn on the nscd_use_shm boolean. Enabled by default.

       setsebool -P nscd_use_shm 1

NSSWITCH DOMAIN
       If you want to allow users to resolve user passwd entries directly from
       ldap rather then using a sssd server for the cupsd_lpd_t, you must turn
       on the authlogin_nsswitch_use_ldap boolean.

       setsebool -P authlogin_nsswitch_use_ldap 1

       If you want to allow confined applications to run with kerberos for the
       cupsd_lpd_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

MANAGED FILES
       The  SELinux process type cupsd_lpd_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.

       cupsd_lpd_tmp_t

       cupsd_lpd_var_run_t

       print_spool_t

	    /var/spool/lpd(/.*)?
	    /var/spool/cups(/.*)?
	    /var/spool/cups-pdf(/.*)?

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 cupsd_lpd policy is very flexible allowing users to setup their
       cupsd_lpd processes in as secure a method as possible.

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the cupsd_lpd, 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 cupsd_lpd_exec_t '/srv/cupsd_lpd/content(/.*)?'
       restorecon -R -v /srv/mycupsd_lpd_content

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

       The following file types are defined for cupsd_lpd:

       cupsd_lpd_exec_t

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

       cupsd_lpd_tmp_t

       -  Set  files with the cupsd_lpd_tmp_t type, if you want to store cupsd
       lpd temporary files in the /tmp directories.

       cupsd_lpd_var_run_t

       - Set files with the cupsd_lpd_var_run_t type, if you want to store the
       cupsd lpd files under the /run or /var/run directory.

       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), cupsd_lpd(8), semanage(8), restorecon(8), chcon(1),	sepol‐
       icy(8) , setsebool(8)

cupsd_lpd			   14-05-08		  cupsd_lpd_selinux(8)
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