1unconfined_service_selinSuExL(i8n)ux Policy unconfined_suenrcvoincfeined_service_selinux(8)
2
6 unconfined_service_selinux - Security Enhanced Linux Policy for the
7 unconfined_service processes
8
10 Security-Enhanced Linux secures the unconfined_service processes via
11 flexible mandatory access control.
12 The unconfined_service processes execute with the unconfined_service_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 unconfined_service_t
20
24 The unconfined_service_t SELinux type can be entered via the usr_t,
25 shell_exec_t, bin_t file types.
26 The default entrypoint paths for the unconfined_service_t domain are
28 the following:
29 All executeables with the default executable label, usually stored in
31 /usr/bin and /usr/sbin. /usr/.*, /opt/.*, /emul/.*, /ostree(/.*)?,
32 /export(/.*)?, /usr/doc(/.*)?/lib(/.*)?, /usr/inclu.e(/.*)?,
33 /usr/share/doc(/.*)?/README.*, /usr, /opt, /emul, /bin/d?ash,
34 /bin/zsh.*, /bin/ksh.*, /usr/bin/d?ash, /usr/bin/ksh.*, /usr/bin/zsh.*,
35 /bin/esh, /bin/mksh, /bin/sash, /bin/tcsh, /bin/yash, /bin/bash,
36 /bin/fish, /bin/bash2, /usr/bin/esh, /usr/bin/sash, /usr/bin/tcsh,
37 /usr/bin/yash, /usr/bin/mksh, /usr/bin/fish, /usr/bin/bash, /sbin/nolo‐
38 gin, /usr/sbin/sesh, /usr/bin/bash2, /usr/sbin/smrsh, /usr/bin/scponly,
39 /usr/sbin/nologin, /usr/libexec/sesh, /usr/sbin/scponlyc, /usr/bin/git-
40 shell, /usr/libexec/sudo/sesh, /usr/bin/cockpit-bridge,
41 /usr/libexec/cockpit-agent, /usr/libexec/git-core/git-shell
42
44 SELinux defines process types (domains) for each process running on the
45 system
46 You can see the context of a process using the -Z option to ps
48 Policy governs the access confined processes have to files. SELinux
50 unconfined_service policy is very flexible allowing users to setup
51 their unconfined_service processes in as secure a method as possible.
52 The following process types are defined for unconfined_service:
54 unconfined_service_t
56 Note: semanage permissive -a unconfined_service_t can be used to make
58 the process type unconfined_service_t permissive. SELinux does not deny
59 access to permissive process types, but the AVC (SELinux denials) mes‐
60 sages are still generated.
61
64 SELinux policy is customizable based on least access required. uncon‐
65 fined_service policy is extremely flexible and has several booleans
66 that allow you to manipulate the policy and run unconfined_service with
67 the tightest access possible.
68 If you want to deny user domains applications to map a memory region as
72 both executable and writable, this is dangerous and the executable
73 should be reported in bugzilla, you must turn on the deny_execmem bool‐
74 ean. Enabled by default.
75 setsebool -P deny_execmem 1
77 If you want to deny any process from ptracing or debugging any other
81 processes, you must turn on the deny_ptrace boolean. Enabled by
82 default.
83 setsebool -P deny_ptrace 1
85 If you want to allow any process to mmap any file on system with
89 attribute file_type, you must turn on the domain_can_mmap_files bool‐
90 ean. Enabled by default.
91 setsebool -P domain_can_mmap_files 1
93 If you want to allow all domains write to kmsg_device, while kernel is
97 executed with systemd.log_target=kmsg parameter, you must turn on the
98 domain_can_write_kmsg boolean. Disabled by default.
99 setsebool -P domain_can_write_kmsg 1
101 If you want to allow all domains to use other domains file descriptors,
105 you must turn on the domain_fd_use boolean. Enabled by default.
106 setsebool -P domain_fd_use 1
108 If you want to allow all domains to have the kernel load modules, you
112 must turn on the domain_kernel_load_modules boolean. Disabled by
113 default.
114 setsebool -P domain_kernel_load_modules 1
116 If you want to allow all domains to execute in fips_mode, you must turn
120 on the fips_mode boolean. Enabled by default.
121 setsebool -P fips_mode 1
123 If you want to enable reading of urandom for all domains, you must turn
127 on the global_ssp boolean. Disabled by default.
128 setsebool -P global_ssp 1
130 If you want to control the ability to mmap a low area of the address
134 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
135 the mmap_low_allowed boolean. Disabled by default.
136 setsebool -P mmap_low_allowed 1
138 If you want to disable kernel module loading, you must turn on the
142 secure_mode_insmod boolean. Enabled by default.
143 setsebool -P secure_mode_insmod 1
145 If you want to boolean to determine whether the system permits loading
149 policy, setting enforcing mode, and changing boolean values. Set this
150 to true and you have to reboot to set it back, you must turn on the
151 secure_mode_policyload boolean. Enabled by default.
152 setsebool -P secure_mode_policyload 1
154 If you want to allow unconfined executables to make their heap memory
158 executable. Doing this is a really bad idea. Probably indicates a
159 badly coded executable, but could indicate an attack. This executable
160 should be reported in bugzilla, you must turn on the selin‐
161 uxuser_execheap boolean. Disabled by default.
162 setsebool -P selinuxuser_execheap 1
164 If you want to allow all unconfined executables to use libraries
168 requiring text relocation that are not labeled textrel_shlib_t, you
169 must turn on the selinuxuser_execmod boolean. Enabled by default.
170 setsebool -P selinuxuser_execmod 1
172 If you want to allow unconfined executables to make their stack exe‐
176 cutable. This should never, ever be necessary. Probably indicates a
177 badly coded executable, but could indicate an attack. This executable
178 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
179 stack boolean. Enabled by default.
180 setsebool -P selinuxuser_execstack 1
182 If you want to support X userspace object manager, you must turn on the
186 xserver_object_manager boolean. Enabled by default.
187 setsebool -P xserver_object_manager 1
189
193 The SELinux process type unconfined_service_t can manage files labeled
194 with the following file types. The paths listed are the default paths
195 for these file types. Note the processes UID still need to have DAC
196 permissions.
197 file_type
199 all files on the system
201
204 semanage fcontext can also be used to manipulate default file context
205 mappings.
206 semanage permissive can also be used to manipulate whether or not a
208 process type is permissive.
209 semanage module can also be used to enable/disable/install/remove pol‐
211 icy modules.
212 semanage boolean can also be used to manipulate the booleans
214 system-config-selinux is a GUI tool available to customize SELinux pol‐
217 icy settings.
218
221 This manual page was auto-generated using sepolicy manpage .
222
225 selinux(8), unconfined_service(8), semanage(8), restorecon(8),
226 chcon(1), sepolicy(8) , setsebool(8)
227unconfined_service 19-04-25 unconfined_service_selinux(8)