postfix_map_selinux(8)

1postfix_map_selinux(8)    SELinux Policy postfix_map    postfix_map_selinux(8)
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NAME

6       postfix_map_selinux  -  Security  Enhanced  Linux  Policy for the post‐
7       fix_map processes
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DESCRIPTION

10       Security-Enhanced Linux secures the postfix_map processes via  flexible
11       mandatory access control.
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13       The  postfix_map processes execute with the postfix_map_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep postfix_map_t
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ENTRYPOINTS

24       The   postfix_map_t   SELinux   type  can  be  entered  via  the  post‐
25       fix_map_exec_t file type.
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27       The default entrypoint paths for the postfix_map_t domain are the  fol‐
28       lowing:
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30       /usr/sbin/postmap
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PROCESS TYPES

33       SELinux defines process types (domains) for each process running on the
34       system
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36       You can see the context of a process using the -Z option to ps
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38       Policy governs the access confined processes have  to  files.   SELinux
39       postfix_map policy is very flexible allowing users to setup their post‐
40       fix_map processes in as secure a method as possible.
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42       The following process types are defined for postfix_map:
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44       postfix_map_t
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46       Note: semanage permissive -a postfix_map_t can  be  used  to  make  the
47       process  type postfix_map_t permissive. SELinux does not deny access to
48       permissive process types, but the AVC (SELinux  denials)  messages  are
49       still generated.
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BOOLEANS

53       SELinux  policy  is customizable based on least access required.  post‐
54       fix_map policy is extremely flexible  and  has  several  booleans  that
55       allow  you to manipulate the policy and run postfix_map with the tight‐
56       est access possible.
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60       If you want to allow users to resolve user passwd entries directly from
61       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
62       gin_nsswitch_use_ldap boolean. Disabled by default.
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64       setsebool -P authlogin_nsswitch_use_ldap 1
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68       If you want to deny any process from ptracing or  debugging  any  other
69       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
70       default.
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72       setsebool -P deny_ptrace 1
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76       If you want to allow any process  to  mmap  any  file  on  system  with
77       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
78       ean. Enabled by default.
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80       setsebool -P domain_can_mmap_files 1
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84       If you want to allow all domains write to kmsg_device, while kernel  is
85       executed  with  systemd.log_target=kmsg parameter, you must turn on the
86       domain_can_write_kmsg boolean. Disabled by default.
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88       setsebool -P domain_can_write_kmsg 1
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92       If you want to allow all domains to use other domains file descriptors,
93       you must turn on the domain_fd_use boolean. Enabled by default.
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95       setsebool -P domain_fd_use 1
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99       If  you  want to allow all domains to have the kernel load modules, you
100       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
101       default.
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103       setsebool -P domain_kernel_load_modules 1
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107       If you want to allow all domains to execute in fips_mode, you must turn
108       on the fips_mode boolean. Enabled by default.
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110       setsebool -P fips_mode 1
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114       If you want to enable reading of urandom for all domains, you must turn
115       on the global_ssp boolean. Disabled by default.
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117       setsebool -P global_ssp 1
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121       If  you  want  to allow confined applications to run with kerberos, you
122       must turn on the kerberos_enabled boolean. Enabled by default.
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124       setsebool -P kerberos_enabled 1
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128       If you want to allow system to run with  NIS,  you  must  turn  on  the
129       nis_enabled boolean. Disabled by default.
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131       setsebool -P nis_enabled 1
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135       If  you  want to allow confined applications to use nscd shared memory,
136       you must turn on the nscd_use_shm boolean. Disabled by default.
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138       setsebool -P nscd_use_shm 1
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MANAGED FILES

143       The SELinux process type postfix_map_t can manage  files  labeled  with
144       the  following  file types.  The paths listed are the default paths for
145       these file types.  Note the processes UID still need to have  DAC  per‐
146       missions.
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148       mailman_data_t
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150            /etc/mailman.*
151            /var/lib/mailman(/.*)?
152            /var/spool/mailman.*
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154       postfix_etc_t
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156            /etc/postfix.*
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158       postfix_map_tmp_t
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FILE CONTEXTS

163       SELinux requires files to have an extended attribute to define the file
164       type.
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166       You can see the context of a file using the -Z option to ls
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168       Policy governs the access  confined  processes  have  to  these  files.
169       SELinux  postfix_map  policy  is  very flexible allowing users to setup
170       their postfix_map processes in as secure a method as possible.
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172       STANDARD FILE CONTEXT
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174       SELinux defines the file context types  for  the  postfix_map,  if  you
175       wanted  to store files with these types in a diffent paths, you need to
176       execute the semanage command to sepecify alternate  labeling  and  then
177       use restorecon to put the labels on disk.
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179       semanage  fcontext  -a  -t  postfix_map_tmp_t  '/srv/mypostfix_map_con‐
180       tent(/.*)?'
181       restorecon -R -v /srv/mypostfix_map_content
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183       Note: SELinux often uses regular expressions  to  specify  labels  that
184       match multiple files.
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186       The following file types are defined for postfix_map:
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190       postfix_map_exec_t
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192       - Set files with the postfix_map_exec_t type, if you want to transition
193       an executable to the postfix_map_t domain.
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197       postfix_map_tmp_t
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199       - Set files with the postfix_map_tmp_t type, if you want to store post‐
200       fix map temporary files in the /tmp directories.
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204       Note:  File context can be temporarily modified with the chcon command.
205       If you want to permanently change the file context you need to use  the
206       semanage fcontext command.  This will modify the SELinux labeling data‐
207       base.  You will need to use restorecon to apply the labels.
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COMMANDS

211       semanage fcontext can also be used to manipulate default  file  context
212       mappings.
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214       semanage  permissive  can  also  be used to manipulate whether or not a
215       process type is permissive.
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217       semanage module can also be used to enable/disable/install/remove  pol‐
218       icy modules.
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220       semanage boolean can also be used to manipulate the booleans
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223       system-config-selinux is a GUI tool available to customize SELinux pol‐
224       icy settings.
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AUTHOR

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