1rhnsd_selinux(8) SELinux Policy rhnsd rhnsd_selinux(8)
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6 rhnsd_selinux - Security Enhanced Linux Policy for the rhnsd processes
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9 Security-Enhanced Linux secures the rhnsd processes via flexible manda‐
10 tory access control.
11 The rhnsd processes execute with the rhnsd_t SELinux type. You can
13 check if you have these processes running by executing the ps command
14 with the -Z qualifier.
15 For example:
17 ps -eZ | grep rhnsd_t
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23 The rhnsd_t SELinux type can be entered via the file_type,
24 rhnsd_exec_t, unlabeled_t, proc_type, filesystem_type, mtrr_device_t,
25 sysctl_type file types.
26 The default entrypoint paths for the rhnsd_t domain are the following:
28 all files on the system, /usr/sbin/rhnsd, /dev/cpu/mtrr
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32 SELinux defines process types (domains) for each process running on the
33 system
34 You can see the context of a process using the -Z option to ps
36 Policy governs the access confined processes have to files. SELinux
38 rhnsd policy is very flexible allowing users to setup their rhnsd pro‐
39 cesses in as secure a method as possible.
40 The following process types are defined for rhnsd:
42 rhnsd_t
44 Note: semanage permissive -a rhnsd_t can be used to make the process
46 type rhnsd_t permissive. SELinux does not deny access to permissive
47 process types, but the AVC (SELinux denials) messages are still gener‐
48 ated.
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52 SELinux policy is customizable based on least access required. rhnsd
53 policy is extremely flexible and has several booleans that allow you to
54 manipulate the policy and run rhnsd with the tightest access possible.
55 If you want to allow all daemons to write corefiles to /, you must turn
59 on the allow_daemons_dump_core boolean. Disabled by default.
60 setsebool -P allow_daemons_dump_core 1
62 If you want to allow all daemons to use tcp wrappers, you must turn on
66 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
67 setsebool -P allow_daemons_use_tcp_wrapper 1
69 If you want to allow all daemons the ability to read/write terminals,
73 you must turn on the allow_daemons_use_tty boolean. Disabled by
74 default.
75 setsebool -P allow_daemons_use_tty 1
77 If you want to allow all domains to use other domains file descriptors,
81 you must turn on the allow_domain_fd_use boolean. Enabled by default.
82 setsebool -P allow_domain_fd_use 1
84 If you want to allow unconfined executables to make their heap memory
88 executable. Doing this is a really bad idea. Probably indicates a
89 badly coded executable, but could indicate an attack. This executable
90 should be reported in bugzilla, you must turn on the allow_execheap
91 boolean. Disabled by default.
92 setsebool -P allow_execheap 1
94 If you want to allow unconfined executables to map a memory region as
98 both executable and writable, this is dangerous and the executable
99 should be reported in bugzilla), you must turn on the allow_execmem
100 boolean. Enabled by default.
101 setsebool -P allow_execmem 1
103 If you want to allow all unconfined executables to use libraries
107 requiring text relocation that are not labeled textrel_shlib_t), you
108 must turn on the allow_execmod boolean. Enabled by default.
109 setsebool -P allow_execmod 1
111 If you want to allow unconfined executables to make their stack exe‐
115 cutable. This should never, ever be necessary. Probably indicates a
116 badly coded executable, but could indicate an attack. This executable
117 should be reported in bugzilla), you must turn on the allow_execstack
118 boolean. Enabled by default.
119 setsebool -P allow_execstack 1
121 If you want to allow sysadm to debug or ptrace all processes, you must
125 turn on the allow_ptrace boolean. Disabled by default.
126 setsebool -P allow_ptrace 1
128 If you want to enable cluster mode for daemons, you must turn on the
132 daemons_enable_cluster_mode boolean. Disabled by default.
133 setsebool -P daemons_enable_cluster_mode 1
135 If you want to allow all domains to have the kernel load modules, you
139 must turn on the domain_kernel_load_modules boolean. Disabled by
140 default.
141 setsebool -P domain_kernel_load_modules 1
143 If you want to allow all domains to execute in fips_mode, you must turn
147 on the fips_mode boolean. Enabled by default.
148 setsebool -P fips_mode 1
150 If you want to enable reading of urandom for all domains, you must turn
154 on the global_ssp boolean. Disabled by default.
155 setsebool -P global_ssp 1
157 If you want to enable support for upstart as the init program, you must
161 turn on the init_upstart boolean. Enabled by default.
162 setsebool -P init_upstart 1
164 If you want to allow certain domains to map low memory in the kernel,
168 you must turn on the mmap_low_allowed boolean. Disabled by default.
169 setsebool -P mmap_low_allowed 1
171 If you want to boolean to determine whether the system permits loading
175 policy, setting enforcing mode, and changing boolean values. Set this
176 to true and you have to reboot to set it back, you must turn on the
177 secure_mode_policyload boolean. Disabled by default.
178 setsebool -P secure_mode_policyload 1
180 If you want to support X userspace object manager, you must turn on the
184 xserver_object_manager boolean. Disabled by default.
185 setsebool -P xserver_object_manager 1
187
191 The SELinux process type rhnsd_t can manage files labeled with the fol‐
192 lowing file types. The paths listed are the default paths for these
193 file types. Note the processes UID still need to have DAC permissions.
194 file_type
196 all files on the system
198
201 SELinux requires files to have an extended attribute to define the file
202 type.
203 You can see the context of a file using the -Z option to ls
205 Policy governs the access confined processes have to these files.
207 SELinux rhnsd policy is very flexible allowing users to setup their
208 rhnsd processes in as secure a method as possible.
209 STANDARD FILE CONTEXT
211 SELinux defines the file context types for the rhnsd, if you wanted to
213 store files with these types in a diffent paths, you need to execute
214 the semanage command to sepecify alternate labeling and then use
215 restorecon to put the labels on disk.
216 semanage fcontext -a -t rhnsd_var_run_t '/srv/myrhnsd_content(/.*)?'
218 restorecon -R -v /srv/myrhnsd_content
219 Note: SELinux often uses regular expressions to specify labels that
221 match multiple files.
222 The following file types are defined for rhnsd:
224 rhnsd_conf_t
228 - Set files with the rhnsd_conf_t type, if you want to treat the files
230 as rhnsd configuration data, usually stored under the /etc directory.
231 rhnsd_exec_t
235 - Set files with the rhnsd_exec_t type, if you want to transition an
237 executable to the rhnsd_t domain.
238 rhnsd_initrc_exec_t
242 - Set files with the rhnsd_initrc_exec_t type, if you want to transi‐
244 tion an executable to the rhnsd_initrc_t domain.
245 rhnsd_var_run_t
249 - Set files with the rhnsd_var_run_t type, if you want to store the
251 rhnsd files under the /run or /var/run directory.
252 Note: File context can be temporarily modified with the chcon command.
256 If you want to permanently change the file context you need to use the
257 semanage fcontext command. This will modify the SELinux labeling data‐
258 base. You will need to use restorecon to apply the labels.
259
262 semanage fcontext can also be used to manipulate default file context
263 mappings.
264 semanage permissive can also be used to manipulate whether or not a
266 process type is permissive.
267 semanage module can also be used to enable/disable/install/remove pol‐
269 icy modules.
270 semanage boolean can also be used to manipulate the booleans
272 system-config-selinux is a GUI tool available to customize SELinux pol‐
275 icy settings.
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279 This manual page was auto-generated using sepolicy manpage .
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283 selinux(8), rhnsd(8), semanage(8), restorecon(8), chcon(1) , setse‐
284 bool(8)
285rhnsd 15-06-03 rhnsd_selinux(8)