1postfix_pickup_selinux(8)SELinux Policy postfix_pickuppostfix_pickup_selinux(8)
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6 postfix_pickup_selinux - Security Enhanced Linux Policy for the post‐
7 fix_pickup processes
8
10 Security-Enhanced Linux secures the postfix_pickup processes via flexi‐
11 ble mandatory access control.
12 The postfix_pickup processes execute with the postfix_pickup_t SELinux
14 type. You can check if you have these processes running by executing
15 the ps command with the -Z qualifier.
16 For example:
18 ps -eZ | grep postfix_pickup_t
20
24 The postfix_pickup_t SELinux type can be entered via the post‐
25 fix_pickup_exec_t file type.
26 The default entrypoint paths for the postfix_pickup_t domain are the
28 following:
29 /usr/libexec/postfix/pickup
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 postfix_pickup policy is very flexible allowing users to setup their
40 postfix_pickup processes in as secure a method as possible.
41 The following process types are defined for postfix_pickup:
43 postfix_pickup_t
45 Note: semanage permissive -a postfix_pickup_t can be used to make the
47 process type postfix_pickup_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. post‐
54 fix_pickup policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run postfix_pickup with the
56 tightest access possible.
57 If you want to allow all domains to use other domains file descriptors,
61 you must turn on the allow_domain_fd_use boolean. Enabled by default.
62 setsebool -P allow_domain_fd_use 1
64 If you want to allow confined applications to run with kerberos, you
68 must turn on the allow_kerberos boolean. Enabled by default.
69 setsebool -P allow_kerberos 1
71 If you want to allow sysadm to debug or ptrace all processes, you must
75 turn on the allow_ptrace boolean. Disabled by default.
76 setsebool -P allow_ptrace 1
78 If you want to allow system to run with NIS, you must turn on the
82 allow_ypbind boolean. Disabled by default.
83 setsebool -P allow_ypbind 1
85 If you want to allow all domains to have the kernel load modules, you
89 must turn on the domain_kernel_load_modules boolean. Disabled by
90 default.
91 setsebool -P domain_kernel_load_modules 1
93 If you want to allow all domains to execute in fips_mode, you must turn
97 on the fips_mode boolean. Enabled by default.
98 setsebool -P fips_mode 1
100 If you want to enable reading of urandom for all domains, you must turn
104 on the global_ssp boolean. Disabled by default.
105 setsebool -P global_ssp 1
107 If you want to allow confined applications to use nscd shared memory,
111 you must turn on the nscd_use_shm boolean. Enabled by default.
112 setsebool -P nscd_use_shm 1
114
118 The SELinux process type postfix_pickup_t can manage files labeled with
119 the following file types. The paths listed are the default paths for
120 these file types. Note the processes UID still need to have DAC per‐
121 missions.
122 anon_inodefs_t
124 initrc_tmp_t
127 mnt_t
130 /mnt(/[^/]*)
132 /mnt(/[^/]*)?
133 /rhev(/[^/]*)?
134 /media(/[^/]*)
135 /media(/[^/]*)?
136 /etc/rhgb(/.*)?
137 /media/.hal-.*
138 /net
139 /afs
140 /rhev
141 /misc
142 postfix_pickup_tmp_t
144 postfix_var_run_t
147 /var/spool/postfix/pid/.*
149 tmp_t
151 /tmp
153 /usr/tmp
154 /var/tmp
155 /tmp-inst
156 /var/tmp-inst
157 /var/tmp/vi.recover
158
161 SELinux requires files to have an extended attribute to define the file
162 type.
163 You can see the context of a file using the -Z option to ls
165 Policy governs the access confined processes have to these files.
167 SELinux postfix_pickup policy is very flexible allowing users to setup
168 their postfix_pickup processes in as secure a method as possible.
169 STANDARD FILE CONTEXT
171 SELinux defines the file context types for the postfix_pickup, if you
173 wanted to store files with these types in a diffent paths, you need to
174 execute the semanage command to sepecify alternate labeling and then
175 use restorecon to put the labels on disk.
176 semanage fcontext -a -t postfix_pickup_tmp_t '/srv/mypost‐
178 fix_pickup_content(/.*)?'
179 restorecon -R -v /srv/mypostfix_pickup_content
180 Note: SELinux often uses regular expressions to specify labels that
182 match multiple files.
183 The following file types are defined for postfix_pickup:
185 postfix_pickup_exec_t
189 - Set files with the postfix_pickup_exec_t type, if you want to transi‐
191 tion an executable to the postfix_pickup_t domain.
192 postfix_pickup_tmp_t
196 - Set files with the postfix_pickup_tmp_t type, if you want to store
198 postfix pickup temporary files in the /tmp directories.
199 Note: File context can be temporarily modified with the chcon command.
203 If you want to permanently change the file context you need to use the
204 semanage fcontext command. This will modify the SELinux labeling data‐
205 base. You will need to use restorecon to apply the labels.
206
209 semanage fcontext can also be used to manipulate default file context
210 mappings.
211 semanage permissive can also be used to manipulate whether or not a
213 process type is permissive.
214 semanage module can also be used to enable/disable/install/remove pol‐
216 icy modules.
217 semanage boolean can also be used to manipulate the booleans
219 system-config-selinux is a GUI tool available to customize SELinux pol‐
222 icy settings.
223
226 This manual page was auto-generated using sepolicy manpage .
227
230 selinux(8), postfix_pickup(8), semanage(8), restorecon(8), chcon(1) ,
231 setsebool(8)
232postfix_pickup 15-06-03 postfix_pickup_selinux(8)