1postfix_pipe_selinux(8) SELinux Policy postfix_pipe postfix_pipe_selinux(8)
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6 postfix_pipe_selinux - Security Enhanced Linux Policy for the post‐
7 fix_pipe processes
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10 Security-Enhanced Linux secures the postfix_pipe processes via flexible
11 mandatory access control.
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13 The postfix_pipe processes execute with the postfix_pipe_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_pipe_t
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24 The postfix_pipe_t SELinux type can be entered via the post‐
25 fix_pipe_exec_t file type.
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27 The default entrypoint paths for the postfix_pipe_t domain are the fol‐
28 lowing:
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30 /usr/libexec/postfix/pipe
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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_pipe policy is very flexible allowing users to setup their
40 postfix_pipe processes in as secure a method as possible.
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42 The following process types are defined for postfix_pipe:
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44 postfix_pipe_t
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46 Note: semanage permissive -a postfix_pipe_t can be used to make the
47 process type postfix_pipe_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_pipe policy is extremely flexible and has several booleans that al‐
55 low you to manipulate the policy and run postfix_pipe 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_pipe_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 mail_spool_t
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96 /var/mail(/.*)?
97 /var/spool/imap(/.*)?
98 /var/spool/mail(/.*)?
99 /var/spool/smtpd(/.*)?
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101 postfix_pipe_tmp_t
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104 postfix_spool_t
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106 /var/spool/postfix.*
107 /var/spool/postfix/defer(/.*)?
108 /var/spool/postfix/flush(/.*)?
109 /var/spool/postfix/deferred(/.*)?
110 /var/spool/postfix/maildrop(/.*)?
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112 postfix_var_run_t
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114 /var/spool/postfix/pid/.*
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118 SELinux requires files to have an extended attribute to define the file
119 type.
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121 You can see the context of a file using the -Z option to ls
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123 Policy governs the access confined processes have to these files.
124 SELinux postfix_pipe policy is very flexible allowing users to setup
125 their postfix_pipe processes in as secure a method as possible.
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127 STANDARD FILE CONTEXT
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129 SELinux defines the file context types for the postfix_pipe, if you
130 wanted to store files with these types in a different paths, you need
131 to execute the semanage command to specify alternate labeling and then
132 use restorecon to put the labels on disk.
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134 semanage fcontext -a -t postfix_pipe_exec_t '/srv/postfix_pipe/con‐
135 tent(/.*)?'
136 restorecon -R -v /srv/mypostfix_pipe_content
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138 Note: SELinux often uses regular expressions to specify labels that
139 match multiple files.
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141 The following file types are defined for postfix_pipe:
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145 postfix_pipe_exec_t
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147 - Set files with the postfix_pipe_exec_t type, if you want to transi‐
148 tion an executable to the postfix_pipe_t domain.
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152 postfix_pipe_tmp_t
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154 - Set files with the postfix_pipe_tmp_t type, if you want to store
155 postfix pipe temporary files in the /tmp directories.
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159 Note: File context can be temporarily modified with the chcon command.
160 If you want to permanently change the file context you need to use the
161 semanage fcontext command. This will modify the SELinux labeling data‐
162 base. You will need to use restorecon to apply the labels.
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166 semanage fcontext can also be used to manipulate default file context
167 mappings.
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169 semanage permissive can also be used to manipulate whether or not a
170 process type is permissive.
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172 semanage module can also be used to enable/disable/install/remove pol‐
173 icy modules.
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175 semanage boolean can also be used to manipulate the booleans
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178 system-config-selinux is a GUI tool available to customize SELinux pol‐
179 icy settings.
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183 This manual page was auto-generated using sepolicy manpage .
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187 selinux(8), postfix_pipe(8), semanage(8), restorecon(8), chcon(1), se‐
188 policy(8), setsebool(8)
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192postfix_pipe 23-12-15 postfix_pipe_selinux(8)