1vmtools_unconfined_selinSuExL(i8n)ux Policy vmtools_uncovnmftionoelds_unconfined_selinux(8)
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6 vmtools_unconfined_selinux - Security Enhanced Linux Policy for the
7 vmtools_unconfined processes
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10 Security-Enhanced Linux secures the vmtools_unconfined processes via
11 flexible mandatory access control.
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13 The vmtools_unconfined processes execute with the vmtools_unconfined_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep vmtools_unconfined_t
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24 The vmtools_unconfined_t SELinux type can be entered via the
25 vmtools_unconfined_exec_t file type.
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27 The default entrypoint paths for the vmtools_unconfined_t domain are
28 the following:
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30 /etc/vmware-tools(/.*)?
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 vmtools_unconfined policy is very flexible allowing users to setup
40 their vmtools_unconfined processes in as secure a method as possible.
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42 The following process types are defined for vmtools_unconfined:
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44 vmtools_unconfined_t
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46 Note: semanage permissive -a vmtools_unconfined_t can be used to make
47 the process type vmtools_unconfined_t permissive. SELinux does not deny
48 access to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
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53 SELinux policy is customizable based on least access required.
54 vmtools_unconfined policy is extremely flexible and has several bool‐
55 eans that allow you to manipulate the policy and run vmtools_unconfined
56 with the tightest access possible.
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60 If you want to deny user domains applications to map a memory region as
61 both executable and writable, this is dangerous and the executable
62 should be reported in bugzilla, you must turn on the deny_execmem bool‐
63 ean. Enabled by default.
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65 setsebool -P deny_execmem 1
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69 If you want to deny any process from ptracing or debugging any other
70 processes, you must turn on the deny_ptrace boolean. Enabled by
71 default.
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73 setsebool -P deny_ptrace 1
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77 If you want to allow any process to mmap any file on system with
78 attribute file_type, you must turn on the domain_can_mmap_files bool‐
79 ean. Enabled by default.
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81 setsebool -P domain_can_mmap_files 1
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85 If you want to allow all domains write to kmsg_device, while kernel is
86 executed with systemd.log_target=kmsg parameter, you must turn on the
87 domain_can_write_kmsg boolean. Disabled by default.
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89 setsebool -P domain_can_write_kmsg 1
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93 If you want to allow all domains to use other domains file descriptors,
94 you must turn on the domain_fd_use boolean. Enabled by default.
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96 setsebool -P domain_fd_use 1
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100 If you want to allow all domains to have the kernel load modules, you
101 must turn on the domain_kernel_load_modules boolean. Disabled by
102 default.
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104 setsebool -P domain_kernel_load_modules 1
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108 If you want to allow all domains to execute in fips_mode, you must turn
109 on the fips_mode boolean. Enabled by default.
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111 setsebool -P fips_mode 1
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115 If you want to enable reading of urandom for all domains, you must turn
116 on the global_ssp boolean. Disabled by default.
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118 setsebool -P global_ssp 1
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122 If you want to control the ability to mmap a low area of the address
123 space, as configured by /proc/sys/vm/mmap_min_addr, you must turn on
124 the mmap_low_allowed boolean. Disabled by default.
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126 setsebool -P mmap_low_allowed 1
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130 If you want to disable kernel module loading, you must turn on the
131 secure_mode_insmod boolean. Enabled by default.
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133 setsebool -P secure_mode_insmod 1
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137 If you want to boolean to determine whether the system permits loading
138 policy, setting enforcing mode, and changing boolean values. Set this
139 to true and you have to reboot to set it back, you must turn on the
140 secure_mode_policyload boolean. Enabled by default.
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142 setsebool -P secure_mode_policyload 1
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146 If you want to allow unconfined executables to make their heap memory
147 executable. Doing this is a really bad idea. Probably indicates a
148 badly coded executable, but could indicate an attack. This executable
149 should be reported in bugzilla, you must turn on the selin‐
150 uxuser_execheap boolean. Disabled by default.
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152 setsebool -P selinuxuser_execheap 1
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156 If you want to allow all unconfined executables to use libraries
157 requiring text relocation that are not labeled textrel_shlib_t, you
158 must turn on the selinuxuser_execmod boolean. Enabled by default.
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160 setsebool -P selinuxuser_execmod 1
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164 If you want to allow unconfined executables to make their stack exe‐
165 cutable. This should never, ever be necessary. Probably indicates a
166 badly coded executable, but could indicate an attack. This executable
167 should be reported in bugzilla, you must turn on the selinuxuser_exec‐
168 stack boolean. Enabled by default.
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170 setsebool -P selinuxuser_execstack 1
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174 If you want to support X userspace object manager, you must turn on the
175 xserver_object_manager boolean. Enabled by default.
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177 setsebool -P xserver_object_manager 1
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182 The SELinux process type vmtools_unconfined_t can manage files labeled
183 with the following file types. The paths listed are the default paths
184 for these file types. Note the processes UID still need to have DAC
185 permissions.
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187 file_type
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189 all files on the system
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193 SELinux requires files to have an extended attribute to define the file
194 type.
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196 You can see the context of a file using the -Z option to ls
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198 Policy governs the access confined processes have to these files.
199 SELinux vmtools_unconfined policy is very flexible allowing users to
200 setup their vmtools_unconfined processes in as secure a method as pos‐
201 sible.
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203 The following file types are defined for vmtools_unconfined:
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207 vmtools_unconfined_exec_t
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209 - Set files with the vmtools_unconfined_exec_t type, if you want to
210 transition an executable to the vmtools_unconfined_t domain.
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214 Note: File context can be temporarily modified with the chcon command.
215 If you want to permanently change the file context you need to use the
216 semanage fcontext command. This will modify the SELinux labeling data‐
217 base. You will need to use restorecon to apply the labels.
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221 semanage fcontext can also be used to manipulate default file context
222 mappings.
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224 semanage permissive can also be used to manipulate whether or not a
225 process type is permissive.
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227 semanage module can also be used to enable/disable/install/remove pol‐
228 icy modules.
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230 semanage boolean can also be used to manipulate the booleans
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233 system-config-selinux is a GUI tool available to customize SELinux pol‐
234 icy settings.
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238 This manual page was auto-generated using sepolicy manpage .
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242 selinux(8), vmtools_unconfined(8), semanage(8), restorecon(8),
243 chcon(1), sepolicy(8) , setsebool(8)
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247vmtools_unconfined 19-04-25 vmtools_unconfined_selinux(8)