1postfix_bounce_selinux(8)SELinux Policy postfix_bouncepostfix_bounce_selinux(8)
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6 postfix_bounce_selinux - Security Enhanced Linux Policy for the post‐
7 fix_bounce processes
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10 Security-Enhanced Linux secures the postfix_bounce processes via flexi‐
11 ble mandatory access control.
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13 The postfix_bounce processes execute with the postfix_bounce_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_bounce_t
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24 The postfix_bounce_t SELinux type can be entered via the post‐
25 fix_bounce_exec_t file type.
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27 The default entrypoint paths for the postfix_bounce_t domain are the
28 following:
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30 /usr/libexec/postfix/bounce
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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_bounce policy is very flexible allowing users to setup their
40 postfix_bounce processes in as secure a method as possible.
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42 The following process types are defined for postfix_bounce:
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44 postfix_bounce_t
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46 Note: semanage permissive -a postfix_bounce_t can be used to make the
47 process type postfix_bounce_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_bounce policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run postfix_bounce 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_bounce_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_bounce_tmp_t
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97 postfix_spool_bounce_t
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99 /var/spool/postfix/bounce(/.*)?
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101 postfix_spool_t
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103 /var/spool/postfix.*
104 /var/spool/postfix/defer(/.*)?
105 /var/spool/postfix/flush(/.*)?
106 /var/spool/postfix/deferred(/.*)?
107 /var/spool/postfix/maildrop(/.*)?
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109 postfix_var_run_t
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111 /var/spool/postfix/pid/.*
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115 SELinux requires files to have an extended attribute to define the file
116 type.
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118 You can see the context of a file using the -Z option to ls
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120 Policy governs the access confined processes have to these files.
121 SELinux postfix_bounce policy is very flexible allowing users to setup
122 their postfix_bounce processes in as secure a method as possible.
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124 STANDARD FILE CONTEXT
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126 SELinux defines the file context types for the postfix_bounce, if you
127 wanted to store files with these types in a different paths, you need
128 to execute the semanage command to specify alternate labeling and then
129 use restorecon to put the labels on disk.
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131 semanage fcontext -a -t postfix_bounce_exec_t '/srv/postfix_bounce/con‐
132 tent(/.*)?'
133 restorecon -R -v /srv/mypostfix_bounce_content
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135 Note: SELinux often uses regular expressions to specify labels that
136 match multiple files.
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138 The following file types are defined for postfix_bounce:
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142 postfix_bounce_exec_t
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144 - Set files with the postfix_bounce_exec_t type, if you want to transi‐
145 tion an executable to the postfix_bounce_t domain.
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149 postfix_bounce_tmp_t
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151 - Set files with the postfix_bounce_tmp_t type, if you want to store
152 postfix bounce temporary files in the /tmp directories.
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156 Note: File context can be temporarily modified with the chcon command.
157 If you want to permanently change the file context you need to use the
158 semanage fcontext command. This will modify the SELinux labeling data‐
159 base. You will need to use restorecon to apply the labels.
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163 semanage fcontext can also be used to manipulate default file context
164 mappings.
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166 semanage permissive can also be used to manipulate whether or not a
167 process type is permissive.
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169 semanage module can also be used to enable/disable/install/remove pol‐
170 icy modules.
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172 semanage boolean can also be used to manipulate the booleans
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175 system-config-selinux is a GUI tool available to customize SELinux pol‐
176 icy settings.
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180 This manual page was auto-generated using sepolicy manpage .
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184 selinux(8), postfix_bounce(8), semanage(8), restorecon(8), chcon(1),
185 sepolicy(8), setsebool(8)
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189postfix_bounce 23-10-20 postfix_bounce_selinux(8)