1dovecot_deliver_selinux(8S)ELinux Policy dovecot_delivedrovecot_deliver_selinux(8)
2
6 dovecot_deliver_selinux - Security Enhanced Linux Policy for the dove‐
7 cot_deliver processes
8
10 Security-Enhanced Linux secures the dovecot_deliver processes via flex‐
11 ible mandatory access control.
12 The dovecot_deliver processes execute with the dovecot_deliver_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep dovecot_deliver_t
20
24 The dovecot_deliver_t SELinux type can be entered via the dove‐
25 cot_deliver_exec_t file type.
26 The default entrypoint paths for the dovecot_deliver_t domain are the
28 following:
29 /usr/libexec/dovecot/deliver, /usr/libexec/dovecot/dovecot-lda
31
33 SELinux defines process types (domains) for each process running on the
34 system
35 You can see the context of a process using the -Z option to ps
37 Policy governs the access confined processes have to files. SELinux
39 dovecot_deliver policy is very flexible allowing users to setup their
40 dovecot_deliver processes in as secure a method as possible.
41 The following process types are defined for dovecot_deliver:
43 dovecot_deliver_t
45 Note: semanage permissive -a dovecot_deliver_t can be used to make the
47 process type dovecot_deliver_t permissive. SELinux does not deny access
48 to permissive process types, but the AVC (SELinux denials) messages are
49 still generated.
50
53 SELinux policy is customizable based on least access required. dove‐
54 cot_deliver policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run dovecot_deliver with the
56 tightest access possible.
57 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.
63 setsebool -P authlogin_nsswitch_use_ldap 1
65 If you want to deny any process from ptracing or debugging any other
69 processes, you must turn on the deny_ptrace boolean. Enabled by
70 default.
71 setsebool -P deny_ptrace 1
73 If you want to allow any process to mmap any file on system with
77 attribute file_type, you must turn on the domain_can_mmap_files bool‐
78 ean. Enabled by default.
79 setsebool -P domain_can_mmap_files 1
81 If you want to allow all domains write to kmsg_device, while kernel is
85 executed with systemd.log_target=kmsg parameter, you must turn on the
86 domain_can_write_kmsg boolean. Disabled by default.
87 setsebool -P domain_can_write_kmsg 1
89 If you want to allow all domains to use other domains file descriptors,
93 you must turn on the domain_fd_use boolean. Enabled by default.
94 setsebool -P domain_fd_use 1
96 If you want to allow all domains to have the kernel load modules, you
100 must turn on the domain_kernel_load_modules boolean. Disabled by
101 default.
102 setsebool -P domain_kernel_load_modules 1
104 If you want to allow all domains to execute in fips_mode, you must turn
108 on the fips_mode boolean. Enabled by default.
109 setsebool -P fips_mode 1
111 If you want to enable reading of urandom for all domains, you must turn
115 on the global_ssp boolean. Disabled by default.
116 setsebool -P global_ssp 1
118 If you want to allow confined applications to run with kerberos, you
122 must turn on the kerberos_enabled boolean. Enabled by default.
123 setsebool -P kerberos_enabled 1
125 If you want to allow system to run with NIS, you must turn on the
129 nis_enabled boolean. Disabled by default.
130 setsebool -P nis_enabled 1
132 If you want to allow confined applications to use nscd shared memory,
136 you must turn on the nscd_use_shm boolean. Disabled by default.
137 setsebool -P nscd_use_shm 1
139 If you want to support ecryptfs home directories, you must turn on the
143 use_ecryptfs_home_dirs boolean. Disabled by default.
144 setsebool -P use_ecryptfs_home_dirs 1
146 If you want to support fusefs home directories, you must turn on the
150 use_fusefs_home_dirs boolean. Disabled by default.
151 setsebool -P use_fusefs_home_dirs 1
153 If you want to support NFS home directories, you must turn on the
157 use_nfs_home_dirs boolean. Disabled by default.
158 setsebool -P use_nfs_home_dirs 1
160 If you want to support SAMBA home directories, you must turn on the
164 use_samba_home_dirs boolean. Disabled by default.
165 setsebool -P use_samba_home_dirs 1
167
171 The SELinux process type dovecot_deliver_t can manage files labeled
172 with the following file types. The paths listed are the default paths
173 for these file types. Note the processes UID still need to have DAC
174 permissions.
175 cifs_t
177 data_home_t
180 /root/.local/share(/.*)?
182 /home/[^/]+/.local/share(/.*)?
183 dovecot_deliver_tmp_t
185 dovecot_spool_t
188 /var/spool/dovecot(/.*)?
190 dovecot_var_log_t
192 /var/log/dovecot(/.*)?
194 /var/log/dovecot.log.*
195 ecryptfs_t
197 /home/[^/]+/.Private(/.*)?
199 /home/[^/]+/.ecryptfs(/.*)?
200 fusefs_t
202 /var/run/user/[^/]*/gvfs
204 mail_home_rw_t
206 /root/Maildir(/.*)?
208 /root/.esmtp_queue(/.*)?
209 /home/[^/]+/.maildir(/.*)?
210 /home/[^/]+/Maildir(/.*)?
211 /home/[^/]+/.esmtp_queue(/.*)?
212 mail_spool_t
214 /var/mail(/.*)?
216 /var/spool/imap(/.*)?
217 /var/spool/mail(/.*)?
218 /var/spool/smtpd(/.*)?
219 nfs_t
221 user_home_t
224 /home/[^/]+/.+
226
229 SELinux requires files to have an extended attribute to define the file
230 type.
231 You can see the context of a file using the -Z option to ls
233 Policy governs the access confined processes have to these files.
235 SELinux dovecot_deliver policy is very flexible allowing users to setup
236 their dovecot_deliver processes in as secure a method as possible.
237 STANDARD FILE CONTEXT
239 SELinux defines the file context types for the dovecot_deliver, if you
241 wanted to store files with these types in a diffent paths, you need to
242 execute the semanage command to sepecify alternate labeling and then
243 use restorecon to put the labels on disk.
244 semanage fcontext -a -t dovecot_deliver_tmp_t '/srv/mydove‐
246 cot_deliver_content(/.*)?'
247 restorecon -R -v /srv/mydovecot_deliver_content
248 Note: SELinux often uses regular expressions to specify labels that
250 match multiple files.
251 The following file types are defined for dovecot_deliver:
253 dovecot_deliver_exec_t
257 - Set files with the dovecot_deliver_exec_t type, if you want to tran‐
259 sition an executable to the dovecot_deliver_t domain.
260 Paths:
263 /usr/libexec/dovecot/deliver, /usr/libexec/dovecot/dovecot-lda
264 dovecot_deliver_tmp_t
267 - Set files with the dovecot_deliver_tmp_t type, if you want to store
269 dovecot deliver temporary files in the /tmp directories.
270 Note: File context can be temporarily modified with the chcon command.
274 If you want to permanently change the file context you need to use the
275 semanage fcontext command. This will modify the SELinux labeling data‐
276 base. You will need to use restorecon to apply the labels.
277
280 semanage fcontext can also be used to manipulate default file context
281 mappings.
282 semanage permissive can also be used to manipulate whether or not a
284 process type is permissive.
285 semanage module can also be used to enable/disable/install/remove pol‐
287 icy modules.
288 semanage boolean can also be used to manipulate the booleans
290 system-config-selinux is a GUI tool available to customize SELinux pol‐
293 icy settings.
294
297 This manual page was auto-generated using sepolicy manpage .
298
301 selinux(8), dovecot_deliver(8), semanage(8), restorecon(8), chcon(1),
302 sepolicy(8) , setsebool(8)
303dovecot_deliver 19-04-25 dovecot_deliver_selinux(8)