postfix_cleanup_selinux(8)

1postfix_cleanup_selinux(8S)ELinux Policy postfix_cleanuppostfix_cleanup_selinux(8)
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NAME

6       postfix_cleanup_selinux  - Security Enhanced Linux Policy for the post‐
7       fix_cleanup processes
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DESCRIPTION

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

24       The  postfix_cleanup_t  SELinux  type  can  be  entered  via  the post‐
25       fix_cleanup_exec_t file type.
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27       The default entrypoint paths for the postfix_cleanup_t domain  are  the
28       following:
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30       /usr/libexec/postfix/cleanup
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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_cleanup  policy  is very flexible allowing users to setup their
40       postfix_cleanup processes in as secure a method as possible.
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42       The following process types are defined for postfix_cleanup:
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44       postfix_cleanup_t
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46       Note: semanage permissive -a postfix_cleanup_t can be used to make  the
47       process type postfix_cleanup_t permissive. SELinux does not deny access
48       to 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_cleanup policy is extremely flexible and has several booleans  that
55       allow  you  to  manipulate  the policy and run postfix_cleanup with the
56       tightest 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_cleanup_t  can  manage  files  labeled
144       with  the following file types.  The paths listed are the default paths
145       for these file types.  Note the processes UID still need  to  have  DAC
146       permissions.
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148       anon_inodefs_t
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151       postfix_cleanup_tmp_t
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154       postfix_spool_t
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156            /var/spool/postfix.*
157            /var/spool/postfix/defer(/.*)?
158            /var/spool/postfix/flush(/.*)?
159            /var/spool/postfix/deferred(/.*)?
160            /var/spool/postfix/maildrop(/.*)?
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162       postfix_var_run_t
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164            /var/spool/postfix/pid/.*
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FILE CONTEXTS

168       SELinux requires files to have an extended attribute to define the file
169       type.
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171       You can see the context of a file using the -Z option to ls
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173       Policy governs the access  confined  processes  have  to  these  files.
174       SELinux postfix_cleanup policy is very flexible allowing users to setup
175       their postfix_cleanup processes in as secure a method as possible.
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177       STANDARD FILE CONTEXT
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179       SELinux defines the file context types for the postfix_cleanup, if  you
180       wanted  to store files with these types in a diffent paths, you need to
181       execute the semanage command to sepecify alternate  labeling  and  then
182       use restorecon to put the labels on disk.
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184       semanage    fcontext    -a   -t   postfix_cleanup_tmp_t   '/srv/mypost‐
185       fix_cleanup_content(/.*)?'
186       restorecon -R -v /srv/mypostfix_cleanup_content
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188       Note: SELinux often uses regular expressions  to  specify  labels  that
189       match multiple files.
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191       The following file types are defined for postfix_cleanup:
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195       postfix_cleanup_exec_t
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197       -  Set files with the postfix_cleanup_exec_t type, if you want to tran‐
198       sition an executable to the postfix_cleanup_t domain.
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202       postfix_cleanup_tmp_t
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204       - Set files with the postfix_cleanup_tmp_t type, if you want  to  store
205       postfix cleanup temporary files in the /tmp directories.
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209       Note:  File context can be temporarily modified with the chcon command.
210       If you want to permanently change the file context you need to use  the
211       semanage fcontext command.  This will modify the SELinux labeling data‐
212       base.  You will need to use restorecon to apply the labels.
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COMMANDS

216       semanage fcontext can also be used to manipulate default  file  context
217       mappings.
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219       semanage  permissive  can  also  be used to manipulate whether or not a
220       process type is permissive.
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222       semanage module can also be used to enable/disable/install/remove  pol‐
223       icy modules.
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225       semanage boolean can also be used to manipulate the booleans
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227
228       system-config-selinux is a GUI tool available to customize SELinux pol‐
229       icy settings.
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AUTHOR

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