1postfix_postqueue_selinuSxE(L8i)nux Policy postfix_postqpuoesutefix_postqueue_selinux(8)
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6 postfix_postqueue_selinux - Security Enhanced Linux Policy for the
7 postfix_postqueue processes
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10 Security-Enhanced Linux secures the postfix_postqueue processes via
11 flexible mandatory access control.
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13 The postfix_postqueue processes execute with the postfix_postqueue_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_postqueue_t
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24 The postfix_postqueue_t SELinux type can be entered via the post‐
25 fix_postqueue_exec_t file type.
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27 The default entrypoint paths for the postfix_postqueue_t domain are the
28 following:
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30 /usr/sbin/postqueue
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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_postqueue policy is very flexible allowing users to setup their
40 postfix_postqueue processes in as secure a method as possible.
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42 The following process types are defined for postfix_postqueue:
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44 postfix_postqueue_t
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46 Note: semanage permissive -a postfix_postqueue_t can be used to make
47 the process type postfix_postqueue_t permissive. SELinux does not deny
48 access to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
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53 SELinux policy is customizable based on least access required. post‐
54 fix_postqueue policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run postfix_postqueue with
56 the tightest access possible.
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60 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
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63 setsebool -P fips_mode 1
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67 If you want to allow system to run with NIS, you must turn on the
68 nis_enabled boolean. Disabled by default.
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70 setsebool -P nis_enabled 1
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75 The SELinux process type postfix_postqueue_t can manage files labeled
76 with the following file types. The paths listed are the default paths
77 for these file types. Note the processes UID still need to have DAC
78 permissions.
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80 arpwatch_tmp_t
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83 krb5_host_rcache_t
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85 /var/tmp/krb5_0.rcache2
86 /var/cache/krb5rcache(/.*)?
87 /var/tmp/nfs_0
88 /var/tmp/DNS_25
89 /var/tmp/host_0
90 /var/tmp/imap_0
91 /var/tmp/HTTP_23
92 /var/tmp/HTTP_48
93 /var/tmp/ldap_55
94 /var/tmp/ldap_487
95 /var/tmp/ldapmap1_0
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97 postfix_var_run_t
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99 /var/spool/postfix/pid/.*
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103 SELinux requires files to have an extended attribute to define the file
104 type.
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106 You can see the context of a file using the -Z option to ls
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108 Policy governs the access confined processes have to these files.
109 SELinux postfix_postqueue policy is very flexible allowing users to
110 setup their postfix_postqueue processes in as secure a method as possi‐
111 ble.
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113 STANDARD FILE CONTEXT
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115 SELinux defines the file context types for the postfix_postqueue, if
116 you wanted to store files with these types in a different paths, you
117 need to execute the semanage command to specify alternate labeling and
118 then use restorecon to put the labels on disk.
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120 semanage fcontext -a -t postfix_postqueue_exec_t '/srv/post‐
121 fix_postqueue/content(/.*)?'
122 restorecon -R -v /srv/mypostfix_postqueue_content
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124 Note: SELinux often uses regular expressions to specify labels that
125 match multiple files.
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127 The following file types are defined for postfix_postqueue:
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131 postfix_postqueue_exec_t
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133 - Set files with the postfix_postqueue_exec_t type, if you want to
134 transition an executable to the postfix_postqueue_t domain.
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138 Note: File context can be temporarily modified with the chcon command.
139 If you want to permanently change the file context you need to use the
140 semanage fcontext command. This will modify the SELinux labeling data‐
141 base. You will need to use restorecon to apply the labels.
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145 semanage fcontext can also be used to manipulate default file context
146 mappings.
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148 semanage permissive can also be used to manipulate whether or not a
149 process type is permissive.
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151 semanage module can also be used to enable/disable/install/remove pol‐
152 icy modules.
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154 semanage boolean can also be used to manipulate the booleans
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157 system-config-selinux is a GUI tool available to customize SELinux pol‐
158 icy settings.
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162 This manual page was auto-generated using sepolicy manpage .
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166 selinux(8), postfix_postqueue(8), semanage(8), restorecon(8), chcon(1),
167 sepolicy(8), setsebool(8)
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171postfix_postqueue 23-10-20 postfix_postqueue_selinux(8)