1procmail_selinux(8) SELinux Policy procmail procmail_selinux(8)
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6 procmail_selinux - Security Enhanced Linux Policy for the procmail pro‐
7 cesses
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10 Security-Enhanced Linux secures the procmail processes via flexible
11 mandatory access control.
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13 The procmail processes execute with the procmail_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep procmail_t
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24 The procmail_t SELinux type can be entered via the procmail_exec_t file
25 type.
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27 The default entrypoint paths for the procmail_t domain are the follow‐
28 ing:
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30 /usr/bin/procmail
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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 procmail policy is very flexible allowing users to setup their procmail
40 processes in as secure a method as possible.
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42 The following process types are defined for procmail:
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44 procmail_t
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46 Note: semanage permissive -a procmail_t can be used to make the process
47 type procmail_t permissive. SELinux does not deny access to permissive
48 process types, but the AVC (SELinux denials) messages are still gener‐
49 ated.
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53 SELinux policy is customizable based on least access required. proc‐
54 mail policy is extremely flexible and has several booleans that allow
55 you to manipulate the policy and run procmail with the tightest access
56 possible.
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60 If you want to allow users to resolve user passwd entries directly from
61 ldap rather then using a sssd server, you must turn on the authlo‐
62 gin_nsswitch_use_ldap boolean. Disabled by default.
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64 setsebool -P authlogin_nsswitch_use_ldap 1
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68 If you want to allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
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71 setsebool -P fips_mode 1
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75 If you want to allow confined applications to run with kerberos, you
76 must turn on the kerberos_enabled boolean. Enabled by default.
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78 setsebool -P kerberos_enabled 1
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82 If you want to allow system to run with NIS, you must turn on the
83 nis_enabled boolean. Disabled by default.
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85 setsebool -P nis_enabled 1
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89 If you want to allow confined applications to use nscd shared memory,
90 you must turn on the nscd_use_shm boolean. Enabled by default.
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92 setsebool -P nscd_use_shm 1
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97 The SELinux process type procmail_t can manage files labeled with the
98 following file types. The paths listed are the default paths for these
99 file types. Note the processes UID still need to have DAC permissions.
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101 anon_inodefs_t
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104 cifs_t
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107 data_home_t
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109 /root/.local/share(/.*)?
110 /home/[^/]+/.local/share(/.*)?
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112 dovecot_spool_t
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114 /var/spool/dovecot(/.*)?
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116 ecryptfs_t
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118 /home/[^/]+/.Private(/.*)?
119 /home/[^/]+/.ecryptfs(/.*)?
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121 fusefs_t
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123 /var/run/user/[^/]*/gvfs
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125 mail_home_rw_t
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127 /root/Maildir(/.*)?
128 /root/.esmtp_queue(/.*)?
129 /home/[^/]+/.maildir(/.*)?
130 /home/[^/]+/Maildir(/.*)?
131 /home/[^/]+/.esmtp_queue(/.*)?
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133 mail_spool_t
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135 /var/mail(/.*)?
136 /var/spool/imap(/.*)?
137 /var/spool/mail(/.*)?
138 /var/spool/smtpd(/.*)?
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140 nfs_t
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143 procmail_tmp_t
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146 user_home_t
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148 /home/[^/]+/.+
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150 user_tmp_t
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152 /dev/shm/mono.*
153 /var/run/user(/.*)?
154 /tmp/.ICE-unix(/.*)?
155 /tmp/.X11-unix(/.*)?
156 /dev/shm/pulse-shm.*
157 /tmp/.X0-lock
158 /tmp/hsperfdata_root
159 /var/tmp/hsperfdata_root
160 /home/[^/]+/tmp
161 /home/[^/]+/.tmp
162 /tmp/gconfd-[^/]+
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166 SELinux requires files to have an extended attribute to define the file
167 type.
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169 You can see the context of a file using the -Z option to ls
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171 Policy governs the access confined processes have to these files.
172 SELinux procmail policy is very flexible allowing users to setup their
173 procmail processes in as secure a method as possible.
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175 EQUIVALENCE DIRECTORIES
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178 procmail policy stores data with multiple different file context types
179 under the /var/log/procmail directory. If you would like to store the
180 data in a different directory you can use the semanage command to cre‐
181 ate an equivalence mapping. If you wanted to store this data under the
182 /srv dirctory you would execute the following command:
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184 semanage fcontext -a -e /var/log/procmail /srv/procmail
185 restorecon -R -v /srv/procmail
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187 STANDARD FILE CONTEXT
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189 SELinux defines the file context types for the procmail, if you wanted
190 to store files with these types in a diffent paths, you need to execute
191 the semanage command to sepecify alternate labeling and then use
192 restorecon to put the labels on disk.
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194 semanage fcontext -a -t procmail_tmp_t '/srv/myprocmail_content(/.*)?'
195 restorecon -R -v /srv/myprocmail_content
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197 Note: SELinux often uses regular expressions to specify labels that
198 match multiple files.
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200 The following file types are defined for procmail:
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204 procmail_exec_t
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206 - Set files with the procmail_exec_t type, if you want to transition an
207 executable to the procmail_t domain.
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211 procmail_home_t
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213 - Set files with the procmail_home_t type, if you want to store proc‐
214 mail files in the users home directory.
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217 Paths:
218 /root/.procmailrc, /home/[^/]+/.procmailrc
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221 procmail_log_t
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223 - Set files with the procmail_log_t type, if you want to treat the data
224 as procmail log data, usually stored under the /var/log directory.
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227 Paths:
228 /var/log/procmail(/.*)?, /var/log/procmail.log.*
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231 procmail_tmp_t
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233 - Set files with the procmail_tmp_t type, if you want to store procmail
234 temporary files in the /tmp directories.
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238 Note: File context can be temporarily modified with the chcon command.
239 If you want to permanently change the file context you need to use the
240 semanage fcontext command. This will modify the SELinux labeling data‐
241 base. You will need to use restorecon to apply the labels.
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245 semanage fcontext can also be used to manipulate default file context
246 mappings.
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248 semanage permissive can also be used to manipulate whether or not a
249 process type is permissive.
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251 semanage module can also be used to enable/disable/install/remove pol‐
252 icy modules.
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254 semanage boolean can also be used to manipulate the booleans
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257 system-config-selinux is a GUI tool available to customize SELinux pol‐
258 icy settings.
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262 This manual page was auto-generated using sepolicy manpage .
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266 selinux(8), procmail(8), semanage(8), restorecon(8), chcon(1), sepol‐
267 icy(8), setsebool(8)
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271procmail 19-10-08 procmail_selinux(8)