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postfix_map_selinux(8)	  SELinux Policy postfix_map	postfix_map_selinux(8)

NAME
       postfix_map_selinux  -  Security	 Enhanced  Linux  Policy for the post‐
       fix_map processes

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

       The  postfix_map processes execute with the postfix_map_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 postfix_map_t

ENTRYPOINTS
       The   postfix_map_t   SELinux   type  can  be  entered  via  the	 post‐
       fix_map_exec_t file type.

       The default entrypoint paths for the postfix_map_t domain are the  fol‐
       lowing:

       /usr/sbin/postmap

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
       postfix_map policy is very flexible allowing users to setup their post‐
       fix_map processes in as secure a method as possible.

       The following process types are defined for postfix_map:

       postfix_map_t

       Note: semanage permissive -a postfix_map_t can  be  used	 to  make  the
       process	type postfix_map_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.	 post‐
       fix_map policy is extremely flexible  and  has  several	booleans  that
       allow  you to manipulate the policy and run postfix_map with the tight‐
       est 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. Disabled 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 postfix_map_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
       postfix_map_t, you must turn on the kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

MANAGED FILES
       The  SELinux  process  type postfix_map_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 per‐
       missions.

       mailman_data_t

	    /etc/mailman.*
	    /var/lib/mailman(/.*)?
	    /var/spool/mailman.*

       postfix_etc_t

	    /etc/postfix.*

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

       STANDARD FILE CONTEXT

       SELinux	defines	 the  file  context  types for the postfix_map, 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  postfix_map_exec_t	'/srv/postfix_map/con‐
       tent(/.*)?'
       restorecon -R -v /srv/mypostfix_map_content

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

       The following file types are defined for postfix_map:

       postfix_map_exec_t

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

       postfix_map_tmp_t

       - Set files with the postfix_map_tmp_t type, if you want to store post‐
       fix map 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 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),   postfix_map(8),   semanage(8),  restorecon(8),  chcon(1),
       sepolicy(8) , setsebool(8)

postfix_map			   13-11-20		postfix_map_selinux(8)
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