1postfix_map_selinux(8) SELinux Policy postfix_map postfix_map_selinux(8)
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6 postfix_map_selinux - Security Enhanced Linux Policy for the post‐
7 fix_map processes
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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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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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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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53 SELinux policy is customizable based on least access required. post‐
54 fix_map policy is extremely flexible and has several booleans that al‐
55 low you to manipulate the policy and run postfix_map with the tightest
56 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_map_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 mailman_data_t
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96 /etc/mailman.*
97 /var/lib/mailman(/.*)?
98 /var/spool/mailman.*
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100 postfix_etc_t
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102 /etc/postfix.*
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104 postfix_map_tmp_t
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109 SELinux requires files to have an extended attribute to define the file
110 type.
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112 You can see the context of a file using the -Z option to ls
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114 Policy governs the access confined processes have to these files.
115 SELinux postfix_map policy is very flexible allowing users to setup
116 their postfix_map processes in as secure a method as possible.
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118 STANDARD FILE CONTEXT
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120 SELinux defines the file context types for the postfix_map, if you
121 wanted to store files with these types in a different paths, you need
122 to execute the semanage command to specify alternate labeling and then
123 use restorecon to put the labels on disk.
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125 semanage fcontext -a -t postfix_map_exec_t '/srv/postfix_map/con‐
126 tent(/.*)?'
127 restorecon -R -v /srv/mypostfix_map_content
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129 Note: SELinux often uses regular expressions to specify labels that
130 match multiple files.
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132 The following file types are defined for postfix_map:
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136 postfix_map_exec_t
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138 - Set files with the postfix_map_exec_t type, if you want to transition
139 an executable to the postfix_map_t domain.
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143 postfix_map_tmp_t
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145 - Set files with the postfix_map_tmp_t type, if you want to store post‐
146 fix map temporary files in the /tmp directories.
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150 Note: File context can be temporarily modified with the chcon command.
151 If you want to permanently change the file context you need to use the
152 semanage fcontext command. This will modify the SELinux labeling data‐
153 base. You will need to use restorecon to apply the labels.
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157 semanage fcontext can also be used to manipulate default file context
158 mappings.
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160 semanage permissive can also be used to manipulate whether or not a
161 process type is permissive.
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163 semanage module can also be used to enable/disable/install/remove pol‐
164 icy modules.
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166 semanage boolean can also be used to manipulate the booleans
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169 system-config-selinux is a GUI tool available to customize SELinux pol‐
170 icy settings.
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174 This manual page was auto-generated using sepolicy manpage .
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178 selinux(8), postfix_map(8), semanage(8), restorecon(8), chcon(1), se‐
179 policy(8), setsebool(8)
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183postfix_map 23-10-20 postfix_map_selinux(8)