1sandbox_x_client_selinux(S8E)Linux Policy sandbox_x_cliseanntdbox_x_client_selinux(8)
2
6 sandbox_x_client_selinux - Security Enhanced Linux Policy for the sand‐
7 box_x_client processes
8
10 Security-Enhanced Linux secures the sandbox_x_client processes via
11 flexible mandatory access control.
12 The sandbox_x_client processes execute with the sandbox_x_client_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 sandbox_x_client_t
20
24 The sandbox_x_client_t SELinux type can be entered via the file_type,
25 sandbox_exec_t file types.
26 The default entrypoint paths for the sandbox_x_client_t domain are the
28 following:
29 all files on the system, /usr/share/sandbox/start
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 sandbox_x_client policy is very flexible allowing users to setup their
40 sandbox_x_client processes in as secure a method as possible.
41 The following process types are defined for sandbox_x_client:
43 sandbox_x_client_t
45 Note: semanage permissive -a sandbox_x_client_t can be used to make the
47 process type sandbox_x_client_t permissive. SELinux does not deny
48 access to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
50
53 SELinux policy is customizable based on least access required. sand‐
54 box_x_client policy is extremely flexible and has several booleans that
55 allow you to manipulate the policy and run sandbox_x_client 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 user domains applications to map a memory region as
69 both executable and writable, this is dangerous and the executable
70 should be reported in bugzilla, you must turn on the deny_execmem bool‐
71 ean. Enabled by default.
72 setsebool -P deny_execmem 1
74 If you want to deny any process from ptracing or debugging any other
78 processes, you must turn on the deny_ptrace boolean. Enabled by
79 default.
80 setsebool -P deny_ptrace 1
82 If you want to allow any process to mmap any file on system with
86 attribute file_type, you must turn on the domain_can_mmap_files bool‐
87 ean. Enabled by default.
88 setsebool -P domain_can_mmap_files 1
90 If you want to allow all domains write to kmsg_device, while kernel is
94 executed with systemd.log_target=kmsg parameter, you must turn on the
95 domain_can_write_kmsg boolean. Disabled by default.
96 setsebool -P domain_can_write_kmsg 1
98 If you want to allow all domains to use other domains file descriptors,
102 you must turn on the domain_fd_use boolean. Enabled by default.
103 setsebool -P domain_fd_use 1
105 If you want to allow all domains to have the kernel load modules, you
109 must turn on the domain_kernel_load_modules boolean. Disabled by
110 default.
111 setsebool -P domain_kernel_load_modules 1
113 If you want to allow all domains to execute in fips_mode, you must turn
117 on the fips_mode boolean. Enabled by default.
118 setsebool -P fips_mode 1
120 If you want to enable reading of urandom for all domains, you must turn
124 on the global_ssp boolean. Disabled by default.
125 setsebool -P global_ssp 1
127 If you want to allow confined applications to run with kerberos, you
131 must turn on the kerberos_enabled boolean. Enabled by default.
132 setsebool -P kerberos_enabled 1
134 If you want to allow system to run with NIS, you must turn on the
138 nis_enabled boolean. Disabled by default.
139 setsebool -P nis_enabled 1
141 If you want to allow confined applications to use nscd shared memory,
145 you must turn on the nscd_use_shm boolean. Disabled by default.
146 setsebool -P nscd_use_shm 1
148 If you want to support fusefs home directories, you must turn on the
152 use_fusefs_home_dirs boolean. Disabled by default.
153 setsebool -P use_fusefs_home_dirs 1
155 If you want to support NFS home directories, you must turn on the
159 use_nfs_home_dirs boolean. Disabled by default.
160 setsebool -P use_nfs_home_dirs 1
162 If you want to support SAMBA home directories, you must turn on the
166 use_samba_home_dirs boolean. Disabled by default.
167 setsebool -P use_samba_home_dirs 1
169
173 The SELinux process type sandbox_x_client_t can manage files labeled
174 with the following file types. The paths listed are the default paths
175 for these file types. Note the processes UID still need to have DAC
176 permissions.
177 cifs_t
179 fusefs_t
182 /var/run/user/[^/]*/gvfs
184 mozilla_plugin_tmpfs_t
186 nfs_t
189 sandbox_file_t
192 sandbox_x_client_tmpfs_t
195 security_t
198 /selinux
200 user_tmp_t
202 /dev/shm/mono.*
204 /var/run/user(/.*)?
205 /tmp/.X11-unix(/.*)?
206 /tmp/.ICE-unix(/.*)?
207 /dev/shm/pulse-shm.*
208 /tmp/.X0-lock
209 /tmp/hsperfdata_root
210 /var/tmp/hsperfdata_root
211 /home/[^/]+/tmp
212 /home/[^/]+/.tmp
213 /tmp/gconfd-[^/]+
214
217 semanage fcontext can also be used to manipulate default file context
218 mappings.
219 semanage permissive can also be used to manipulate whether or not a
221 process type is permissive.
222 semanage module can also be used to enable/disable/install/remove pol‐
224 icy modules.
225 semanage boolean can also be used to manipulate the booleans
227 system-config-selinux is a GUI tool available to customize SELinux pol‐
230 icy settings.
231
234 This manual page was auto-generated using sepolicy manpage .
235
238 selinux(8), sandbox_x_client(8), semanage(8), restorecon(8), chcon(1),
239 sepolicy(8) , setsebool(8)
240sandbox_x_client 19-04-25 sandbox_x_client_selinux(8)