1postfix_cleanup_selinux(8S)ELinux Policy postfix_cleanuppostfix_cleanup_selinux(8)
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6 postfix_cleanup_selinux - Security Enhanced Linux Policy for the post‐
7 fix_cleanup processes
8
10 Security-Enhanced Linux secures the postfix_cleanup processes via flex‐
11 ible mandatory access control.
12 The postfix_cleanup processes execute with the postfix_cleanup_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 postfix_cleanup_t
20
24 The postfix_cleanup_t SELinux type can be entered via the post‐
25 fix_cleanup_exec_t file type.
26 The default entrypoint paths for the postfix_cleanup_t domain are the
28 following:
29 /usr/libexec/postfix/cleanup
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_cleanup policy is very flexible allowing users to setup their
40 postfix_cleanup processes in as secure a method as possible.
41 The following process types are defined for postfix_cleanup:
43 postfix_cleanup_t
45 Note: semanage permissive -a postfix_cleanup_t can be used to make the
47 process type postfix_cleanup_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_cleanup policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run postfix_cleanup 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_cleanup_t can manage files labeled
119 with the following file types. The paths listed are the default paths
120 for these file types. Note the processes UID still need to have DAC
121 permissions.
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_cleanup_tmp_t
144 postfix_spool_t
147 /var/spool/postfix.*
149 postfix_var_run_t
151 /var/spool/postfix/pid/.*
153 tmp_t
155 /tmp
157 /usr/tmp
158 /var/tmp
159 /tmp-inst
160 /var/tmp-inst
161 /var/tmp/vi.recover
162
165 SELinux requires files to have an extended attribute to define the file
166 type.
167 You can see the context of a file using the -Z option to ls
169 Policy governs the access confined processes have to these files.
171 SELinux postfix_cleanup policy is very flexible allowing users to setup
172 their postfix_cleanup processes in as secure a method as possible.
173 STANDARD FILE CONTEXT
175 SELinux defines the file context types for the postfix_cleanup, if you
177 wanted to store files with these types in a diffent paths, you need to
178 execute the semanage command to sepecify alternate labeling and then
179 use restorecon to put the labels on disk.
180 semanage fcontext -a -t postfix_cleanup_tmp_t '/srv/mypost‐
182 fix_cleanup_content(/.*)?'
183 restorecon -R -v /srv/mypostfix_cleanup_content
184 Note: SELinux often uses regular expressions to specify labels that
186 match multiple files.
187 The following file types are defined for postfix_cleanup:
189 postfix_cleanup_exec_t
193 - Set files with the postfix_cleanup_exec_t type, if you want to tran‐
195 sition an executable to the postfix_cleanup_t domain.
196 postfix_cleanup_tmp_t
200 - Set files with the postfix_cleanup_tmp_t type, if you want to store
202 postfix cleanup temporary files in the /tmp directories.
203 Note: File context can be temporarily modified with the chcon command.
207 If you want to permanently change the file context you need to use the
208 semanage fcontext command. This will modify the SELinux labeling data‐
209 base. You will need to use restorecon to apply the labels.
210
213 semanage fcontext can also be used to manipulate default file context
214 mappings.
215 semanage permissive can also be used to manipulate whether or not a
217 process type is permissive.
218 semanage module can also be used to enable/disable/install/remove pol‐
220 icy modules.
221 semanage boolean can also be used to manipulate the booleans
223 system-config-selinux is a GUI tool available to customize SELinux pol‐
226 icy settings.
227
230 This manual page was auto-generated using sepolicy manpage .
231
234 selinux(8), postfix_cleanup(8), semanage(8), restorecon(8), chcon(1) ,
235 setsebool(8)
236postfix_cleanup 15-06-03 postfix_cleanup_selinux(8)