1nova_ajax_selinux(8) SELinux Policy nova_ajax nova_ajax_selinux(8)
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6 nova_ajax_selinux - Security Enhanced Linux Policy for the nova_ajax
7 processes
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10 Security-Enhanced Linux secures the nova_ajax processes via flexible
11 mandatory access control.
12 The nova_ajax processes execute with the nova_ajax_t SELinux type. You
14 can check if you have these processes running by executing the ps com‐
15 mand with the -Z qualifier.
16 For example:
18 ps -eZ | grep nova_ajax_t
20
24 The nova_ajax_t SELinux type can be entered via the file_type, unla‐
25 beled_t, proc_type, filesystem_type, nova_ajax_exec_t, mtrr_device_t,
26 sysctl_type file types.
27 The default entrypoint paths for the nova_ajax_t domain are the follow‐
29 ing:
30 all files on the system, /usr/bin/nova-ajax-console-proxy,
32 /dev/cpu/mtrr
33
35 SELinux defines process types (domains) for each process running on the
36 system
37 You can see the context of a process using the -Z option to ps
39 Policy governs the access confined processes have to files. SELinux
41 nova_ajax policy is very flexible allowing users to setup their
42 nova_ajax processes in as secure a method as possible.
43 The following process types are defined for nova_ajax:
45 nova_ajax_t
47 Note: semanage permissive -a nova_ajax_t can be used to make the
49 process type nova_ajax_t permissive. SELinux does not deny access to
50 permissive process types, but the AVC (SELinux denials) messages are
51 still generated.
52
55 SELinux policy is customizable based on least access required.
56 nova_ajax policy is extremely flexible and has several booleans that
57 allow you to manipulate the policy and run nova_ajax with the tightest
58 access possible.
59 If you want to allow all daemons to write corefiles to /, you must turn
63 on the allow_daemons_dump_core boolean. Disabled by default.
64 setsebool -P allow_daemons_dump_core 1
66 If you want to allow all daemons to use tcp wrappers, you must turn on
70 the allow_daemons_use_tcp_wrapper boolean. Disabled by default.
71 setsebool -P allow_daemons_use_tcp_wrapper 1
73 If you want to allow all daemons the ability to read/write terminals,
77 you must turn on the allow_daemons_use_tty boolean. Disabled by
78 default.
79 setsebool -P allow_daemons_use_tty 1
81 If you want to allow all domains to use other domains file descriptors,
85 you must turn on the allow_domain_fd_use boolean. Enabled by default.
86 setsebool -P allow_domain_fd_use 1
88 If you want to allow unconfined executables to make their heap memory
92 executable. Doing this is a really bad idea. Probably indicates a
93 badly coded executable, but could indicate an attack. This executable
94 should be reported in bugzilla, you must turn on the allow_execheap
95 boolean. Disabled by default.
96 setsebool -P allow_execheap 1
98 If you want to allow unconfined executables to map a memory region as
102 both executable and writable, this is dangerous and the executable
103 should be reported in bugzilla), you must turn on the allow_execmem
104 boolean. Enabled by default.
105 setsebool -P allow_execmem 1
107 If you want to allow all unconfined executables to use libraries
111 requiring text relocation that are not labeled textrel_shlib_t), you
112 must turn on the allow_execmod boolean. Enabled by default.
113 setsebool -P allow_execmod 1
115 If you want to allow unconfined executables to make their stack exe‐
119 cutable. This should never, ever be necessary. Probably indicates a
120 badly coded executable, but could indicate an attack. This executable
121 should be reported in bugzilla), you must turn on the allow_execstack
122 boolean. Enabled by default.
123 setsebool -P allow_execstack 1
125 If you want to allow sysadm to debug or ptrace all processes, you must
129 turn on the allow_ptrace boolean. Disabled by default.
130 setsebool -P allow_ptrace 1
132 If you want to enable cluster mode for daemons, you must turn on the
136 daemons_enable_cluster_mode boolean. Disabled by default.
137 setsebool -P daemons_enable_cluster_mode 1
139 If you want to allow all domains to have the kernel load modules, you
143 must turn on the domain_kernel_load_modules boolean. Disabled by
144 default.
145 setsebool -P domain_kernel_load_modules 1
147 If you want to allow all domains to execute in fips_mode, you must turn
151 on the fips_mode boolean. Enabled by default.
152 setsebool -P fips_mode 1
154 If you want to enable reading of urandom for all domains, you must turn
158 on the global_ssp boolean. Disabled by default.
159 setsebool -P global_ssp 1
161 If you want to enable support for upstart as the init program, you must
165 turn on the init_upstart boolean. Enabled by default.
166 setsebool -P init_upstart 1
168 If you want to allow certain domains to map low memory in the kernel,
172 you must turn on the mmap_low_allowed boolean. Disabled by default.
173 setsebool -P mmap_low_allowed 1
175 If you want to boolean to determine whether the system permits loading
179 policy, setting enforcing mode, and changing boolean values. Set this
180 to true and you have to reboot to set it back, you must turn on the
181 secure_mode_policyload boolean. Disabled by default.
182 setsebool -P secure_mode_policyload 1
184 If you want to support X userspace object manager, you must turn on the
188 xserver_object_manager boolean. Disabled by default.
189 setsebool -P xserver_object_manager 1
191
195 The SELinux process type nova_ajax_t can manage files labeled with the
196 following file types. The paths listed are the default paths for these
197 file types. Note the processes UID still need to have DAC permissions.
198 file_type
200 all files on the system
202
205 SELinux requires files to have an extended attribute to define the file
206 type.
207 You can see the context of a file using the -Z option to ls
209 Policy governs the access confined processes have to these files.
211 SELinux nova_ajax policy is very flexible allowing users to setup their
212 nova_ajax processes in as secure a method as possible.
213 STANDARD FILE CONTEXT
215 SELinux defines the file context types for the nova_ajax, if you wanted
217 to store files with these types in a diffent paths, you need to execute
218 the semanage command to sepecify alternate labeling and then use
219 restorecon to put the labels on disk.
220 semanage fcontext -a -t nova_ajax_tmp_t '/srv/mynova_ajax_con‐
222 tent(/.*)?'
223 restorecon -R -v /srv/mynova_ajax_content
224 Note: SELinux often uses regular expressions to specify labels that
226 match multiple files.
227 The following file types are defined for nova_ajax:
229 nova_ajax_exec_t
233 - Set files with the nova_ajax_exec_t type, if you want to transition
235 an executable to the nova_ajax_t domain.
236 nova_ajax_initrc_exec_t
240 - Set files with the nova_ajax_initrc_exec_t type, if you want to tran‐
242 sition an executable to the nova_ajax_initrc_t domain.
243 nova_ajax_tmp_t
247 - Set files with the nova_ajax_tmp_t type, if you want to store nova
249 ajax temporary files in the /tmp directories.
250 Note: File context can be temporarily modified with the chcon command.
254 If you want to permanently change the file context you need to use the
255 semanage fcontext command. This will modify the SELinux labeling data‐
256 base. You will need to use restorecon to apply the labels.
257
260 semanage fcontext can also be used to manipulate default file context
261 mappings.
262 semanage permissive can also be used to manipulate whether or not a
264 process type is permissive.
265 semanage module can also be used to enable/disable/install/remove pol‐
267 icy modules.
268 semanage boolean can also be used to manipulate the booleans
270 system-config-selinux is a GUI tool available to customize SELinux pol‐
273 icy settings.
274
277 This manual page was auto-generated using sepolicy manpage .
278
281 selinux(8), nova_ajax(8), semanage(8), restorecon(8), chcon(1) , setse‐
282 bool(8)
283nova_ajax 15-06-03 nova_ajax_selinux(8)