1postfix_pickup_selinux(8)SELinux Policy postfix_pickuppostfix_pickup_selinux(8)
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6 postfix_pickup_selinux - Security Enhanced Linux Policy for the post‐
7 fix_pickup processes
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10 Security-Enhanced Linux secures the postfix_pickup processes via flexi‐
11 ble mandatory access control.
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13 The postfix_pickup processes execute with the postfix_pickup_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep postfix_pickup_t
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24 The postfix_pickup_t SELinux type can be entered via the post‐
25 fix_pickup_exec_t file type.
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27 The default entrypoint paths for the postfix_pickup_t domain are the
28 following:
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30 /usr/libexec/postfix/pickup
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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_pickup policy is very flexible allowing users to setup their
40 postfix_pickup processes in as secure a method as possible.
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42 The following process types are defined for postfix_pickup:
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44 postfix_pickup_t
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46 Note: semanage permissive -a postfix_pickup_t can be used to make the
47 process type postfix_pickup_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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53 SELinux policy is customizable based on least access required. post‐
54 fix_pickup policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run postfix_pickup with the
56 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_pickup_t can manage files labeled with
76 the following file types. The paths listed are the default paths for
77 these file types. Note the processes UID still need to have DAC per‐
78 missions.
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80 krb5_host_rcache_t
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82 /var/tmp/krb5_0.rcache2
83 /var/cache/krb5rcache(/.*)?
84 /var/tmp/nfs_0
85 /var/tmp/DNS_25
86 /var/tmp/host_0
87 /var/tmp/imap_0
88 /var/tmp/HTTP_23
89 /var/tmp/HTTP_48
90 /var/tmp/ldap_55
91 /var/tmp/ldap_487
92 /var/tmp/ldapmap1_0
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94 postfix_pickup_tmp_t
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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_pickup policy is very flexible allowing users to setup
110 their postfix_pickup processes in as secure a method as possible.
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112 STANDARD FILE CONTEXT
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114 SELinux defines the file context types for the postfix_pickup, if you
115 wanted to store files with these types in a diffent paths, you need to
116 execute the semanage command to specify alternate labeling and then use
117 restorecon to put the labels on disk.
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119 semanage fcontext -a -t postfix_pickup_tmp_t '/srv/mypost‐
120 fix_pickup_content(/.*)?'
121 restorecon -R -v /srv/mypostfix_pickup_content
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123 Note: SELinux often uses regular expressions to specify labels that
124 match multiple files.
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126 The following file types are defined for postfix_pickup:
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130 postfix_pickup_exec_t
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132 - Set files with the postfix_pickup_exec_t type, if you want to transi‐
133 tion an executable to the postfix_pickup_t domain.
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137 postfix_pickup_tmp_t
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139 - Set files with the postfix_pickup_tmp_t type, if you want to store
140 postfix pickup temporary files in the /tmp directories.
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144 Note: File context can be temporarily modified with the chcon command.
145 If you want to permanently change the file context you need to use the
146 semanage fcontext command. This will modify the SELinux labeling data‐
147 base. You will need to use restorecon to apply the labels.
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151 semanage fcontext can also be used to manipulate default file context
152 mappings.
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154 semanage permissive can also be used to manipulate whether or not a
155 process type is permissive.
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157 semanage module can also be used to enable/disable/install/remove pol‐
158 icy modules.
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160 semanage boolean can also be used to manipulate the booleans
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163 system-config-selinux is a GUI tool available to customize SELinux pol‐
164 icy settings.
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168 This manual page was auto-generated using sepolicy manpage .
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172 selinux(8), postfix_pickup(8), semanage(8), restorecon(8), chcon(1),
173 sepolicy(8), setsebool(8)
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177postfix_pickup 23-02-03 postfix_pickup_selinux(8)